3 Uses of Walrus Operators in Python

 The walrus operator (:=) in Python, introduced in Python 3.8, allows you to both assign a value to a variable and use that value in an expression in a single line. This can lead to more concise and readable code. Here are three common uses of the walrus operator in Python:

Simplify While Loops:

The walrus operator is often used to simplify while loops by allowing you to combine the assignment and condition check in a single line. This is particularly useful when you want to read lines from a file until a certain condition is met.

with open('data.txt') as file:

    while (line := file.readline().strip()) != 'END':

        # Process the line

In this example, the line variable is assigned the value of file.readline().strip() and then immediately checked to see if it's equal to 'END'. The loop continues until the condition is False.

Simplify List Comprehensions:

The walrus operator can simplify list comprehensions by allowing you to use the assigned variable within the list comprehension. This is especially useful when you want to filter or transform elements in a list based on a condition.

numbers = [1, 2, 3, 4, 5]

doubled_even_numbers = [x * 2 for x in numbers if (x % 2 == 0)]

In this example, the x * 2 operation is only performed when x is an even number.

Optimize Expressions for Performance:

In some cases, the walrus operator can be used to optimize code for performance by avoiding redundant calculations. This is particularly useful when working with expensive operations or complex conditions.

result = (expensive_function(x) if (x > 0) else None)

In this example, expensive_function(x) is only called when x is greater than 0. This can save computational resources by avoiding unnecessary function calls.

The walrus operator simplifies code in cases where you need to assign and use a variable within an expression, improving readability and, in some cases, performance. However, it should be used judiciously to maintain code clarity.

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Generative AI with Large Language Models (Free Course)

 

What you'll learn

Gain foundational knowledge, practical skills, and a functional understanding of how generative AI works

Dive into the latest research on Gen AI to understand how companies are creating value with cutting-edge technology

Instruction from expert AWS AI practitioners who actively build and deploy AI in business use-cases today

Skills you'll gain

Generative AI

LLMs

large language models

Machine Learning

Python Programming

There are 3 modules in this course

In Generative AI with Large Language Models (LLMs), you’ll learn the fundamentals of how generative AI works, and how to deploy it in real-world applications.

By taking this course, you'll learn to:

- Deeply understand generative AI, describing the key steps in a typical LLM-based generative AI lifecycle, from data gathering and model selection, to performance evaluation and deployment

- Describe in detail the transformer architecture that powers LLMs, how they’re trained, and how fine-tuning enables LLMs to be adapted to a variety of specific use cases

- Use empirical scaling laws to optimize the model's objective function across dataset size, compute budget, and inference requirements

- Apply state-of-the art training, tuning, inference, tools, and deployment methods to maximize the performance of models within the specific constraints of your project 

- Discuss the challenges and opportunities that generative AI creates for businesses after hearing stories from industry researchers and practitioners

Developers who have a good foundational understanding of how LLMs work, as well the best practices behind training and deploying them, will be able to make good decisions for their companies and more quickly build working prototypes. This course will support learners in building practical intuition about how to best utilize this exciting new technology.

This is an intermediate course, so you should have some experience coding in Python to get the most out of it. You should also be familiar with the basics of machine learning, such as supervised and unsupervised learning, loss functions, and splitting data into training, validation, and test sets. If you have taken the Machine Learning Specialization or Deep Learning Specialization from DeepLearning.AI, you’ll be ready to take this course and dive deeper into the fundamentals of generative AI.

Join Free  - Generative AI with Large Language Models

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Python Coding challenge - Day 52 | What is the output of the following Python code?

Code - 

numbers = [1, 2, 3]

for num in numbers:

    print(num)

Solution - 

Step-by-step explanation of the code:

List Definition: You start by defining a list named numbers containing three integers: 1, 2, and 3.

numbers = [1, 2, 3]

This line creates a list with the values [1, 2, 3] and assigns it to the variable numbers.

For Loop: You then use a for loop to iterate over the elements in the numbers list.

for num in numbers:

This loop will go through each element of the numbers list, and for each iteration, the current element is assigned to the variable num.

Print Statement: Inside the loop, you have a print statement.

print(num)

This line prints the value of num to the console.

Iteration: The loop executes three times, once for each element in the numbers list.

1. In the first iteration, num is 1, and it is printed to the console.
2. In the second iteration, num is 2, and it is printed to the console.
3. In the third iteration, num is 3, and it is printed to the console.

Output: As a result, the code will print each number in the numbers list on a separate line.

The output will be:

1

2

3

Each number is printed on a new line, so the output displays:

1

2

3

That's the step-by-step explanation of the provided Python code. It simply prints the elements of the numbers list, one at a time, on separate lines.

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Python Coding challenge - Day 51 | What is the output of the following Python code?

 

Code - 

r = [20, 40, 60, 80]

r[1:4] = []

print(r)

Detailed Solution - 

initialize a list called r with four elements:

r = [20, 40, 60, 80]

Attempt to modify the list by removing elements using a slice. The slice notation used is [1:4], which means it will remove elements starting from index 1 (inclusive) up to index 4 (exclusive).

The list r is modified as follows:

1. Remove the element at index 1 (which is 40).
2. Remove the element at index 2 (which is 60).
3. Remove the element at index 3 (which is 80).

After the modifications, the list r will now look like this:

r = [20]

Finally, the code prints the modified list:

[20]

So, the step-by-step solution demonstrates that the code removes elements 40, 60, and 80 from the list r, leaving only the element 20 in the list.

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IBM: SQL for Data Science (Free Course)

 

Learn how to use and apply the powerful language of SQL to better communicate and extract data from databases - a must for anyone working in the data science field.

About this course

Please Note: Learners who successfully complete this IBM course can earn a skill badge — a detailed, verifiable and digital credential that profiles the knowledge and skills you’ve acquired in this course. Enroll to learn more, complete the course and claim your badge!

Much of the world's data lives in databases. SQL (or Structured Query Language) is a powerful programming language that is used for communicating with and extracting various data types from databases. A working knowledge of databases and SQL is necessary to advance as a data scientist or a machine learning specialist. The purpose of this course is to introduce relational database concepts and help you learn and apply foundational knowledge of the SQL language. It is also intended to get you started with performing SQL access in a data science environment.

The emphasis in this course is on hands-on, practical learning. As such, you will work with real databases, real data science tools, and real-world datasets. You will create a database instance in the cloud. Through a series of hands-on labs, you will practice building and running SQL queries. You will also learn how to access databases from Jupyter notebooks using SQL and Python.

No prior knowledge of databases, SQL, Python, or programming is required.

What you'll learn

Learn and apply foundational knowledge of the SQL language

How to create a database in the cloud

How to use string patterns and ranges to query data

How to sort and group data in result sets and by data type

How to analyze data using Python

JOIN Free - IBM: SQL for Data Science

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Python Coding challenge - Day 50 | What is the output of the following Python code?

 

Code - 

a = [1, 2, 3, 4, 5]

print(a[:4].pop())

Detailed Solution - 

This code will print 4. Here's what happens:

a[:4] creates a new list slice containing the elements [1, 2, 3, 4].

Then, pop() is called on this new list slice, which removes and returns the last element of the slice, which is 4.

The print() function then displays the value returned by pop(), which is 4.

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IBM Data Science Professional Certificate

 

There are 10 courses in this program

• Course 1: What is Data Science?

• Course 2: Tools for Data Science

• Course 3: Data Science Methodology

• Course 4: Python for Data Science, AI & Development

• Course 5: Python Project for Data Science

• Course 6: Databases and SQL for Data Science with Python

• Course 7: Data Analysis with Python

• Course 8: Data Visualization with Python

• Course 9: Machine Learning with Python

• Course 10: Applied Data Science Capstone

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Python Coding challenge - Day 49 | What is the output of the following Python code?

 

Question

k = [2, 1, 0, 3, 0, 2, 1]

print(k.count(k.index(0)))

Solution

The given list is k = [2, 1, 0, 3, 0, 2, 1].

k.index(0) finds the index of the first occurrence of the value 0 in the list k. In this case, the first occurrence of 0 is at index 2.

The result of k.index(0) is 2.

k.count(2) counts how many times the value 2 appears in the list k.

In the list k, the value 2 appears twice, at index 0 and index 5.

So, the final result is 2 because the index of the first occurrence of 0 (which is 2) appears twice in the list k.

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Python For Everybody: Python Programming Made Easy (Free eBook)

 

Yes, Python developers are in high-demand.

Python software engineers are also among the highest-paid software developers today, earning an average income of $150,000 a year.

The Python language is easy to learn, yet POWERFUL.

YouTube, Dropbox, Google, Instagram, Spotify, Reddit, Netflix, Pinterest - they are all developed using Python.

And most recently, ChatGPT is also written in Python.

Learning Python opens up the possibilities of a whole new career in Data Science.

This book contains only the first 10 chapters (Chapters 1 to 10) of my online Python course as a Udemy instructor.

eBook - Python For Everybody: Python Programming Made Easy

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Introduction to Data Science with Python - October 2023

 

What you'll learn

Gain hands-on experience and practice using Python to solve real data science challenges

Practice Python coding for modeling, statistics, and storytelling

Utilize popular libraries such as Pandas, numPy, matplotlib, and SKLearn

Run basic machine learning models using Python, evaluate how those models are performing, and apply those models to real-world problems

Build a foundation for the use of Python in machine learning and artificial intelligence, preparing you for future Python study

Course description

Every single minute, computers across the world collect millions of gigabytes of data. What can you do to make sense of this mountain of data? How do data scientists use this data for the applications that power our modern world?

Data science is an ever-evolving field, using algorithms and scientific methods to parse complex data sets. Data scientists use a range of programming languages, such as Python and R, to harness and analyze data. This course focuses on using Python in data science. By the end of the course, you’ll have a fundamental understanding of machine learning models and basic concepts around Machine Learning (ML) and Artificial Intelligence (AI). 

Using Python, learners will study regression models (Linear, Multilinear, and Polynomial) and classification models (kNN, Logistic), utilizing popular libraries such as sklearn, Pandas, matplotlib, and numPy. The course will cover key concepts of machine learning such as: picking the right complexity, preventing overfitting, regularization, assessing uncertainty, weighing trade-offs, and model evaluation. Participation in this course will build your confidence in using Python, preparing you for more advanced study in Machine Learning (ML) and Artificial Intelligence (AI), and advancement in your career.

Learners must have a minimum baseline of programming knowledge (preferably in Python) and statistics in order to be successful in this course. Python prerequisites can be met with an introductory Python course offered through CS50’s Introduction to Programming with Python, and statistics prerequisites can be met via Fat Chance or with Stat110 offered through HarvardX.

JOIN Free  - Introduction to Data Science with Python - October 2023

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10 Advanced Python CLI Tricks To Save You From Writing Code

Here are 10 advanced Python Command Line Interface (CLI) tricks and techniques that can help you save time and effort when working with CLI applications:

Click Library:

Click is a powerful Python library for creating command-line interfaces. It simplifies the process of defining and parsing command-line arguments and options. By using Click, you can create well-structured and user-friendly CLI applications with minimal code.

import click

@click.command()

@click.option('--name', prompt='Your name', help='Your name')

def hello(name):

    click.echo(f'Hello, {name}!')

if __name__ == '__main__':

    hello()

Argparse Subcommands:

If your CLI application has multiple subcommands, use the argparse library to define and manage them. Subcommands allow you to organize your CLI tools logically.

Colorama for Colored Output:

The Colorama library makes it easy to add colored text to your CLI application's output. This can help highlight important information and make your tool more user-friendly.

from colorama import Fore, Style

print(f'{Fore.GREEN}Success!{Style.RESET_ALL} Operation completed.')

Progress Bars with TQDM:

Use the tqdm library to add progress bars to your CLI applications, especially for time-consuming tasks. It provides a visual indicator of progress.

from tqdm import tqdm

import time

for i in tqdm(range(10)):

    time.sleep(1)

Configparser for Configuration Files:

The configparser library allows you to read and write configuration files for your CLI application. This is useful for storing settings and user preferences.

Logging:

Implement robust logging using Python's built-in logging module. It helps you track errors, debug your application, and provide better user feedback.

import logging

logging.basicConfig(filename='myapp.log', level=logging.INFO)

Interactive Menus:

If your CLI application has a menu-driven interface, use libraries like inquirer or prompt_toolkit to create interactive menus for user input.

Shell Command Execution:

You can execute shell commands from within your Python CLI application using the subprocess module. This is useful for running external commands and integrating them into your tool.

import subprocess

result = subprocess.run(['ls', '-l'], capture_output=True, text=True)

print(result.stdout)

Table Formatting:

Use libraries like tabulate or PrettyTable to format data into tables for better presentation, especially when dealing with tabular data in your CLI application.

Unit Testing:

Make use of Python's unittest or pytest to create unit tests for your CLI application. Proper testing ensures that your code is robust and reliable.

These advanced Python CLI tricks should help you streamline the development and improve the user experience of your command-line applications. Remember to choose the right tools and techniques based on your specific requirements.

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Python Coding challenge - Day 48 | What is the output of the following Python code?

 

Code - 

q = [47, 28, 33, 54, 15]

q.reverse()

print(q[:3])

Detailed Solution - 

In this code, you have a list q containing five elements [47, 28, 33, 54, 15]. You then use the reverse() method to reverse the order of the elements in the list. Finally, you print the first three elements of the modified list. Here's what happens step by step:

q = [47, 28, 33, 54, 15]: q is a list with five elements.

q.reverse(): This reverses the order of the elements in the list q. After this operation, q becomes [15, 54, 33, 28, 47].

print(q[:3]): This prints the first three elements of the modified list q, which are [15, 54, 33].

So, the output will be: [15, 54, 33]

step-by-step solutions to the code - 

q = [47, 28, 33, 54, 15]

Step 1: Initialize a list q with five elements: [47, 28, 33, 54, 15].

q.reverse()

Step 2: Use the reverse() method to reverse the order of elements in the list q.

After this operation, q becomes [15, 54, 33, 28, 47].

print(q[:3])

Step 3: Print the first three elements of the modified list q.

The output will be:

[15, 54, 33]

These are the first three elements of the list q after it has been reversed.

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Crash Course on Python (From google)

 

What you'll learn

What Python is and why Python is relevant to automation

How to write short Python scripts to perform automated actions

How to use the basic Python structures: strings, lists, and dictionaries

How to create your own Python objects

There are 6 modules in this course

This course is designed to teach you the foundations in order to write simple programs in Python using the most common structures. No previous exposure to programming is needed. By the end of this course, you'll understand the benefits of programming in IT roles; be able to write simple programs using Python; figure out how the building blocks of programming fit together; and combine all of this knowledge to solve a complex programming problem. 

We'll start off by diving into the basics of writing a computer program. Along the way, you’ll get hands-on experience with programming concepts through interactive exercises and real-world examples. You’ll quickly start to see how computers can perform a multitude of tasks — you just have to write code that tells them what to do.

JOIN - Crash Course on Python

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Information Extraction from Free Text Data in Health (Free Project)

 

What you'll learn

Identify text mining approaches needed to identify and extract different kinds of information from health-related text data.

Differentiate how training deep learning models differ from training traditional machine learning models.

There are 4 modules in this course

In this MOOC, you will be introduced to advanced machine learning and natural language

processing techniques to parse and extract information from unstructured text documents in

healthcare, such as clinical notes, radiology reports, and discharge summaries. Whether you are an aspiring data scientist or an early or mid-career professional in data science or information technology in healthcare, it is critical that you keep up-to-date your skills in information extraction and analysis. 

To be successful in this course, you should build on the concepts learned through other intermediate-level MOOC courses and specializations in Data Science offered by the University of Michigan, so you  will be able to delve deeper into challenges in recognizing medical entities in health-related documents, extracting clinical information, addressing ambiguity and polysemy to tag them with correct concept types, and develop tools and techniques to analyze new genres of health information.

By the end of this course, you will be able to: 

Identify text mining approaches needed to identify and extract different kinds of information from health-related text data

Create an end-to-end NLP pipeline to extract medical concepts from clinical free text using one terminology resource

Differentiate how training deep learning models differ from training traditional machine learning models

Configure a deep neural network model to detect adverse events from drug reviews

List the pros and cons of Deep Learning approaches."

Join Free - Information Extraction from Free Text Data in Health

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Python Coding challenge - Day 47 | What is the output of the following Python code?

 

CODE - 

n = [76, 24]

p = n.copy()

n.pop()

print(p, n)

Solution - 

Step 1: Initialize the list n with two elements [76, 24].

n = [76, 24]

Step 2: Create a copy of the list n and assign it to the variable p using the copy() method. Both p and n will initially contain the same elements.

p = n.copy()

At this point, p and n are both [76, 24].

Step 3: Use the pop() method on the list n without specifying an index, which by default removes and returns the last element of the list. In this case, it removes the last element, 24, from the list n. So, after this line of code, n contains only [76].

n.pop()

Now, n is [76].

Step 4: Print the contents of the variables p and n. This will display the values of both lists at this point.

print(p, n)

The output will be:

[76, 24] [76]

p still contains the original values [76, 24], while n has had one element removed and now contains [76].

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Perform exploratory data analysis on retail data with Python (Free Project)

 

Project

Demonstrate your skills to employers, and leverage industry tools to solve real-world challenges

Objectives

Load, clean, analyze, process, and visualize data using Python and Jupyter Notebooks

Produce an end-to-end exploratory data analysis using Python and Jupyter Notebooks

About this Project

In this project, you'll serve as a data analyst at an online retail company helping interpret real-world data to help make key business decisions. Your task is to explore and analyze this dataset to gain insights into the store's sales trends, customer behavior, and popular products. 

Upon completion, you’ll be able to demonstrate your ability to perform a comprehensive data analysis project that involves critical thinking, extensive data analysis and visualization, and making data-driven business decisions.

There isn’t just one right approach or solution in this scenario, which means you can create a truly unique project that helps you stand out to employers.

ROLE: Data Analyst

SKILLS: Python

PREREQUISITES: 

Python, Numpy, Matplotlib or Seaborn, Git, Jupyter Notebook

Project plan

This project requires you to independently complete the following steps:

Import required libraries

Load and explore the data

Clean the data

Visualize and analyze the data

JOIN Free - Perform exploratory data analysis on retail data with Python

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Create a funnel chart using Matplotlib

 

import matplotlib.pyplot as plt

# Define the data for the funnel chart

labels = ['Step 1', 'Step 2', 'Step 3', 'Step 4', 'Step 5']

values = [100, 75, 50, 30, 10]

# Calculate the cumulative values for plotting

cumulative_values = [sum(values[:i+1]) for i in range(len(values))]

# Define colors for each segment

colors = ['blue', 'green', 'orange', 'red', 'purple']

# Create the funnel chart

fig, ax = plt.subplots()

for i in range(len(labels)):

    ax.fill_betweenx([i, i + 1], 0, cumulative_values[i], step='mid', alpha=0.7, color=colors[i])

ax.set_yticks(range(len(labels)))

ax.set_yticklabels(labels)

ax.set_xlabel('Conversion Rate')

# Add labels to the bars

for i, value in enumerate(cumulative_values):

    ax.annotate(str(value), xy=(value, i), xytext=(5, 5), textcoords='offset points')

plt.title('Funnel Chart')

plt.show()

#clcoding.com 

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Python Coding challenge - Day 46 | What is the output of the following Python code?

 

g = [1, 2, 3, 2, 5]

g.remove(2)

print(g)

Solutions - 

Initialize a list named g with the following elements: [1, 2, 3, 2, 5].

g = [1, 2, 3, 2, 5]

The list g now contains five elements: 1, 2, 3, 2, and 5.

Use the remove method to remove the first occurrence of the value 2 from the list g.

g.remove(2)

The remove method searches for the first occurrence of the specified value (in this case, 2) in the list and removes it.

Print the modified list g.

print(g)

The print function is used to display the contents of the list after removing the value.

The output of this code will be:

[1, 3, 2, 5]

As you can see, the first occurrence of the value 2 has been removed from the list, resulting in the modified list [1, 3, 2, 5].

That's how this code works step by step to remove the first occurrence of the value 2 from the list g and print the modified list.

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Django for Everybody Specialization

 Build & deploy rich web applications using Django. Learn the fundamentals of building a full-featured web site using Django

What you'll learn

Install and deploy a  Django application; build HTML web pages styled by CSS

Describe and build a data model in Django, applying model query and template tags/code of Django Template Language

Apply built-in login functionality in Django; define sessions, cookies, and one-to-many models

Build objects and write syntactically correct JavaScript language; explain basic elements of low-level jQuery

Advance your subject-matter expertise

Learn in-demand skills from university and industry experts

Master a subject or tool with hands-on projects

Develop a deep understanding of key concepts

Earn a career certificate from University of Michigan 

JOIN - Django for Everybody Specialization

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Top 7 Python courses for developers on Coursera

 Python courses for developers on Coursera. Keep in mind that new courses may have been added since then, so it's a good idea to explore Coursera's website for the most up-to-date options. Here are a few courses that were well-regarded at the time:

"Python for Everybody" by the University of Michigan: This is a beginner-friendly course that covers the fundamentals of Python programming.

"Python 3 Programming" by the University of Michigan: This is a more advanced Python course that delves into topics like data structures and web scraping.

"Google IT Automation with Python" by Google: This specialization covers Python programming and automation, making it suitable for those interested in IT and system administration.

"Applied Data Science with Python" by the University of Michigan: This is a series of courses that covers various aspects of data science using Python, including data visualization, machine learning, and natural language processing.

"Machine Learning" by Stanford University: While not exclusively a Python course, this is a popular choice for those interested in machine learning with Python.

"Django for Everybody" by the University of Michigan: If you're interested in web development with Python, this course covers the Django framework.

"Advanced Machine Learning Specialization" by the National Research University Higher School of Economics: This specialization focuses on more advanced machine learning techniques using Python.

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Python Coding challenge - Day 45 | What is the output of the following Python code?

 

Question

lis = [10, 20, 30, 40]

for m in lis:

    print(m, end=' ')

    if m >= 30:

        break

Solutions - 

Create a List: You start by creating a list named lis with the elements [10, 20, 30, 40]. This is the list you want to iterate through.

lis = [10, 20, 30, 40]

For Loop: You use a for loop to iterate through the elements of the lis list. In this loop, you use the variable m to represent each element in the list one at a time.

for m in lis:

Print Element: Within the loop, you print the current element m followed by a space, using the print statement. This allows you to display the elements as they are iterated.

print(m, end=' ')

Check the Condition: After printing the current element, you use an if statement to check if the current element m is greater than or equal to 30.

if m >= 30:

Break the Loop: If the condition is met (i.e., if m is greater than or equal to 30), you use the break statement to exit the loop. This prevents further iterations of the loop and effectively terminates the loop.

break

End of Code: That's the end of the code. The loop will continue to print elements from the list until it encounters an element greater than or equal to 30, at which point it breaks out of the loop.

Expected Output: The expected output of this code is to print all elements from the list as long as they are less than 30, and when it reaches 30 or a greater value, it stops. So, the output will be:

10 20 30

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Google Data Analytics Professional Certificate

 

What you'll learn

Gain an immersive understanding of the practices and processes used by a junior or associate data analyst in their day-to-day job

Learn key analytical skills (data cleaning, analysis, & visualization) and tools (spreadsheets, SQL, R programming, Tableau) 

Understand how to clean and organize data for analysis, and complete analysis and calculations using spreadsheets, SQL and R programming

Learn how to visualize and present data findings in dashboards, presentations and commonly used visualization platforms

Prepare for a career in Data Analytics

Receive professional-level training from Google

Demonstrate your proficiency in portfolio-ready projects

Earn an employer-recognized certificate from Google

Qualify for in-demand job titles: Data Analyst, Junior Data Analyst, Associate Data Analyst

JOIN - Google Data Analytics Professional Certificate

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Python Coding challenge - Day 44 | What is the output of the following Python code?

 

Solutions - 

for x in range(3):

    print(x, end=' ')

for x in range(3): - This line initiates a for loop. The loop variable x will take on values from 0 to 2 (inclusive) because of range(3). So, it will loop three times, setting x to 0, 1, and 2 in successive iterations.

print(x, end=' ') - Inside the loop, this line prints the value of x. The end=' ' argument specifies that a space character should be used as the separator between printed values. So, instead of a new line, each value will be followed by a space.

Step-by-step execution:

The loop starts with x set to 0.

print(x, end=' ') prints 0 with a space, resulting in 0 (0 followed by a space).

The loop continues with x set to 1.

print(x, end=' ') prints 1 with a space, resulting in 1 (1 followed by a space).

The loop continues with x set to 2.

print(x, end=' ') prints 2 with a space, resulting in 2 (2 followed by a space).

The loop completes, and you'll see the final output on a single line as: 0 1 2 (with spaces between each number).

So, the loop iterates through the values 0, 1, and 2, and prints them on the same line with spaces between them.

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Data Analytics for Lean Six Sigma (Free Course) from Coursera

 

Skills you'll gain

Statistics

Lean Six Sigma

Data Analysis

Minitab

Join Free  - Data Analytics for Lean Six Sigma

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Data Visualization with Python (Free Course)

 

What you'll learn

Apply Python, spreadsheets, and BI tooling proficiently to create visually compelling and interactive data visualizations.

Formulate and communicate data-driven insights and narratives through impactful visualizations and data storytelling.

Assess and select the most suitable visualization tools and techniques to address organizational data needs and objectives.

There are 4 modules in this course

In today's data-driven world, the ability to create compelling visualizations and tell impactful stories with data is a crucial skill. This comprehensive course will guide you through the process of visualization using coding tools with Python, spreadsheets, and BI (Business Intelligence) tooling. Whether you are a data analyst, a business professional, or an aspiring data storyteller, this course will provide you with the knowledge and best practices to excel in the art of visual storytelling.

Throughout the course, a consistent dataset will be used for exercises, enabling you to focus on mastering the visualization tools rather than getting caught up in the intricacies of the data. The emphasis is on practical application, allowing you to learn and practice the tools in a real-world context. To fully leverage the Python sections of this course, prior experience programming in Python is recommended. Additionally, a solid understanding of high-school level math is expected. Familiarity with the Pandas library will also be beneficial.

By the end of this course, you will possess the necessary skills to become a proficient data storyteller and visual communicator. With the ability to create compelling visualizations and leverage the appropriate tools, you will be well-equipped to navigate the world of data and make informed decisions that drive meaningful impact. 

JOIN Free - Data Visualization with Python

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Python Coding challenge - Day 43 | What is the output of the following Python code?

 

Solutions - 

You define a variable a and set it to the value 10.

a = 10

You have a while loop. The condition for this loop is a > 8, which means the loop will continue executing as long as a is greater than 8.

In the first iteration of the loop, a is indeed greater than 8 (it's 10), so the loop's code block will be executed.

Inside the loop, you print the current value of a using the print function. The end=' ' argument ensures that the values are printed with a space between them.

print(a, end=' ')

After printing the value of a, you decrement a by 1 using the expression a = a - 1. This reduces the value of a by 1 in each iteration, effectively counting down.

a = a - 1

The loop then returns to the condition a > 8. If the condition is still true (which it is as long as a is greater than 8), the loop continues to the next iteration. Steps 3 to 5 are repeated.

This process repeats until a is no longer greater than 8. When a becomes 8, the condition a > 8 is no longer true, and the loop terminates.

The output of this code will be the numbers from 10 down to 9, each separated by a space:

10 9

Once a reaches 8, the loop stops, and the program continues with any code that follows this loop.

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MITx: Introduction to Computer Science and Programming Using Python (Free Course)

 An introduction to computer science as a tool to solve real-world analytical problems using Python 3.5.

About this course

This course is the first of a two-course sequence: Introduction to Computer Science and Programming Using Python, and Introduction to Computational Thinking and Data Science. Together, they are designed to help people with no prior exposure to computer science or programming learn to think computationally and write programs to tackle useful problems. Some of the people taking the two courses will use them as a stepping stone to more advanced computer science courses, but for many it will be their first and last computer science courses. This run features lecture videos, lecture exercises, and problem sets using Python 3.5. Even if you previously took the course with Python 2.7, you will be able to easily transition to Python 3.5 in future courses, or enroll now to refresh your learning.

Since these courses may be the only formal computer science courses many of the students take, we have chosen to focus on breadth rather than depth. The goal is to provide students with a brief introduction to many topics so they will have an idea of what is possible when they need to think about how to use computation to accomplish some goal later in their career. That said, they are not "computation appreciation" courses. They are challenging and rigorous courses in which the students spend a lot of time and effort learning to bend the computer to their will

What you'll learn

A Notion of computation

The Python programming language

Some simple algorithms

Testing and debugging

An informal introduction to algorithmic complexity

Data structures

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Python Coding challenge - Day 42 | What is the output of the following Python code?

 

A step-by-step explanation of the code: 

for i in range(1):

    print(i, end=' ')

We have a for loop that iterates over the values in the range created by range(1). The range(1) generates a sequence of numbers from 0 up to, but not including, 1. Since it only includes one value (0), the loop will run only once.

In the loop, the variable i takes on the value of 0, which is the only value generated by range(1).

Inside the loop, we have the print statement. This statement prints the current value of i, which is 0. The end parameter is set to a space (' '), which means it will print a space after the value of i.

After printing the value of i (0) with a space character after it, the loop completes its one and only iteration.

So, the code will output: 0

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Introduction to Python (Free Course)

 

Python is a general-purpose programming language that is becoming ever more popular for data science. Companies worldwide are using Python to harvest insights from their data and gain a competitive edge. Unlike other Python tutorials, this course focuses on Python specifically for data science. In our Introduction to Python course, you’ll learn about powerful ways to store and manipulate data, and helpful data science tools to begin conducting your own analyses. Start DataCamp’s online Python curriculum now. 

Python Basics

An introduction to the basic concepts of Python. Learn how to use Python interactively and by using a script. Create your first variables and acquaint yourself with Python's basic data types. 

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Python Coding challenge - Day 41 | What is the output of the following Python code?

 

Solution - 

for k in range(3, 9, 2):

    print(k, end=' ')

The code begins with a for loop that specifies a loop variable k. It is used to iterate over a range of values.

The range(3, 9, 2) function is used to define the range of values for k. The three arguments inside range are:

Start: 3

Stop: 9 (the loop will stop before reaching 9)

Step: 2 (the increment between each value)

The loop is designed to iterate through the values generated by range(3, 9, 2).

In the first iteration of the loop, k takes the value 3. It then proceeds to the next iteration.

In the second iteration, k takes the value 5. It continues to the next iteration.

In the third and final iteration, k takes the value 7. The loop has reached the end of the specified range.

Inside the loop, the print statement is used to display the current value of k. The end=' ' argument is specified to ensure that a space character is added after each value.

After printing each value of k, the loop continues to the next iteration.

Once the loop has finished all iterations, the program completes, and the output is displayed.

The output of this code is: 3 5 7

It shows the values of k (3, 5, and 7) separated by space characters as specified in the print statement.

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Data Science Math Skills (Free Course)

 

There are 5 modules in this course

Data science courses contain math—no avoiding that! This course is designed to teach learners the basic math you will need in order to be successful in almost any data science math course and was created for learners who have basic math skills but may not have taken algebra or pre-calculus. Data Science Math Skills introduces the core math that data science is built upon, with no extra complexity, introducing unfamiliar ideas and math symbols one-at-a-time. 

Learners who complete this course will master the vocabulary, notation, concepts, and algebra rules that all data scientists must know before moving on to more advanced material.

Topics include:

~Set theory, including Venn diagrams

~Properties of the real number line

~Interval notation and algebra with inequalities

~Uses for summation and Sigma notation

~Math on the Cartesian (x,y) plane, slope and distance formulas

~Graphing and describing functions and their inverses on the x-y plane,

~The concept of instantaneous rate of change and tangent lines to a curve

~Exponents, logarithms, and the natural log function.

~Probability theory, including Bayes’ theorem.

While this course is intended as a general introduction to the math skills needed for data science, it can be considered a prerequisite for learners interested in the course, "Mastering Data Analysis in Excel," which is part of the Excel to MySQL Data Science Specialization.  Learners who master Data Science Math Skills will be fully prepared for success with the more advanced math concepts introduced in "Mastering Data Analysis in Excel." 

Good luck and we hope you enjoy the course!

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Python Coding challenge - Day 40 | What is the output of the following Python code?

 

This Python code will iterate over the list lis using a for loop. Within each iteration, it will unpack the sublists into the variables p and q. Then it will print the sum of p and q followed by an ampersand (&). Let's go through the steps:

p and q will take the values from the sublists in lis successively.

In the first iteration, p will be 8 and q will be 7. The sum will be 15. So, it will print 15&.

In the second iteration, p will be 6 and q will be 5. The sum will be 11. So, it will print 11&.

Therefore, the output of the code will be: 15&11&

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Learn Python in One Day and Learn It Well Python for Beginners with Hands-on Project The only book you need to start coding in Python immediately (Second Edition) By Jamie Chan (Free PDF)

 

(2nd Edition: Covers Object Oriented Programming) Learn Python Fast and Learn It Well. Master Python Programming with a unique Hands-On Project

Have you always wanted to learn computer programming but are afraid it'll be too difficult for you? Or perhaps you know other programming languages but are interested in learning the Python language fast? This book is for you. You no longer have to waste your time and money learning Python from lengthy books, expensive online courses or complicated Python tutorials.

What this book offers...

Python for Beginners Complex concepts are broken down into simple steps to ensure that you can easily master the Python language even if you have never coded before. Carefully Chosen Python Examples Examples are carefully chosen to illustrate all concepts. In addition, the output for all examples are provided immediately so you do not have to wait till you have access to your computer to test the examples. Careful selection of topics Topics are carefully selected to give you a broad exposure to Python, while not overwhelming you with information overload. These topics include object-oriented programming concepts, error handling techniques, file handling techniques and more. Learn The Python Programming Language Fast Concepts are presented in a "to-the-point" style to cater to the busy individual. With this book, you can learn Python in just one day and start coding immediately.

How is this book different...

The best way to learn Python is by doing. This book includes a complete project at the end of the book that requires the application of all the concepts taught previously. Working through the project will not only give you an immense sense of achievement, it"ll also help you retain the knowledge and master the language. Are you ready to dip your toes into the exciting world of Python coding? This book is for you. With the first edition of this book being a #1 best-selling programming ebook on Amazon for more than a year, you can rest assured that this new and improved edition is the perfect book for you to learn the Python programming language fast. Click the BUY button and download it now.

What you'll learn:

- What is Python? - What software you need to code and run Python programs? - What are variables? - What are the common data types in Python? - What are Lists and Tuples? - How to format strings - How to accept user inputs and display outputs - How to control the flow of program with loops - How to handle errors and exceptions - What are functions and modules? - How to define your own functions and modules - How to work with external files - What are objects and classes - How to write your own class - What is inheritance - What are properties - What is name mangling .. and more... Finally, you'll be guided through a hands-on project that requires the application of all the topics covered. Click the BUY button and download the book now to start learning Python. Learn it fast and learn it well.

BUY - Python (2nd Edition): Learn Python in One Day and Learn It Well. Python for Beginners with Hands-on Project. (Learn Coding Fast with Hands-On Project Book 1)

PDF - Learn Python in One Day and Learn It Well Python for Beginners with Hands-on Project The only book you need to start coding in Python immediately (Second Edition) By Jamie Chan (Free PDF)

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Learning Python: Learn to code like a professional with Python - an open source, versatile, and powerful programming language

Learn to code like a professional with Python - an open source, versatile, and powerful programming language

Key Features

• Learn the fundamentals of programming with Python - one of the best languages ever created
• Develop a strong set of programming skills that you will be able to express in any situation, on every platform, thanks to Python's portability
• Create outstanding applications of all kind, from websites to scripting, and from GUIs to data science

Book Description

Learning Python has a dynamic and varied nature. It reads easily and lays a good foundation for those who are interested in digging deeper. It has a practical and example-oriented approach through which both the introductory and the advanced topics are explained. Starting with the fundamentals of programming and Python, it ends by exploring very different topics, like GUIs, web apps and data science. The book takes you all the way to creating a fully fledged application.

The book begins by exploring the essentials of programming, data structures and teaches you how to manipulate them. It then moves on to controlling the flow of a program and writing reusable and error proof code. You will then explore different programming paradigms that will allow you to find the best approach to any situation, and also learn how to perform performance optimization as well as effective debugging. Throughout, the book steers you through the various types of applications, and it concludes with a complete mini website built upon all the concepts that you learned. 

What you will learn

• Get Python up and running on Windows, Mac, and Linux in no time
• Grasp the fundamental concepts of coding, along with the basics of data structures and control flow.
• Write elegant, reusable, and efficient code in any situation
• Understand when to use the functional or the object oriented programming approach
• Create bulletproof, reliable software by writing tests to support your code
• Explore examples of GUIs, scripting, data science and web applications
• Learn to be independent, capable of fetching any resource you need, as well as dig deeper

Who this book is for

Python is the most popular introductory teaching language in U.S. top computer science universities, so if you are new to software development, or maybe you have little experience, and would like to start off on the right foot, then this language and this book are what you need. Its amazing design and portability will help you become productive regardless of the environment you choose to work with.

Table of Contents

1. Introduction and first steps - Take a deep breath
2. Built-in data types
3. Iterating and making decisions
4. Functions, the building blocks of code
5. Saving time and memory
6. Advanced Concepts - OOP, Decorators, Iterators
7. Testing, Profiling and dealing with Exceptions
8. The edges: GUIs and Scripts
9. Data Science
10. Web Development done right
11. Debugging and troubleshooting
12. Summing up: a complete example

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Python Coding challenge - Day 39 | What is the output of the following Python code?

 

The code is a simple Python while loop that starts with the variable cl set to 4. It increments cl by 1 in each iteration and prints the updated value of cl followed by a hyphen ("-") until cl is no longer less than 9. Here's the output of the code: 5-6-7-8-9-

The loop starts with cl equal to 4, and in each iteration, it increments cl by 1. When cl reaches 9, the loop stops because the condition cl < 9 is no longer true.

 step by step solutions 

Initialize the variable cl with the value 4:

cl = 4

Start a while loop with the condition cl < 9. This means the loop will continue as long as cl is less than 9.

Inside the loop, increment the value of cl by 1. This is done using the cl = cl + 1 statement:

cl = cl + 1

Print the updated value of cl, followed by a hyphen (-) without moving to the next line due to the end parameter:

print(cl, end='-')

The loop will continue to the next iteration or exit the loop depending on whether the condition cl < 9 is still true.

The loop repeats steps 3-5 until the condition cl < 9 is no longer true. When cl becomes equal to 9, the loop exits.

Here's the output produced by the code, showing each step:

Step 1: cl = 4

Step 2: Entering the while loop with the condition cl < 9 (4 < 9 is true)

Step 3: Incrementing cl by 1, cl is now 5

Step 4: Printing 5 with an end of '-', output so far: 5-

Step 2: Entering the while loop with the condition cl < 9 (5 < 9 is true)

Step 3: Incrementing cl by 1, cl is now 6

Step 4: Printing 6 with an end of '-', output so far: 5-6-

Step 2: Entering the while loop with the condition cl < 9 (6 < 9 is true)

Step 3: Incrementing cl by 1, cl is now 7

Step 4: Printing 7 with an end of '-', output so far: 5-6-7-

Step 2: Entering the while loop with the condition cl < 9 (7 < 9 is true)

Step 3: Incrementing cl by 1, cl is now 8

Step 4: Printing 8 with an end of '-', output so far: 5-6-7-8-

Step 2: Entering the while loop with the condition cl < 9 (8 < 9 is true)

Step 3: Incrementing cl by 1, cl is now 9

Step 4: Printing 9 with an end of '-', output so far: 5-6-7-8-9-

Step 2: Exiting the while loop as the condition cl < 9 is no longer true

The final output is 5-6-7-8-9-, which is the result of running the code.

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IBM Data Analyst Professional Certificate

 Prepare for a career as a data analyst. Gain the in-demand skills and hands-on experience to get job-ready in as little as 4 months. No prior experience required.

What you'll learn

Master the most up-to-date practical skills and tools that data analysts use in their daily roles

Learn how to visualize data and present findings using various charts in Excel spreadsheets and BI tools like IBM Cognos Analytics & Tableau

Develop working knowledge of Python language for analyzing data using Python libraries like Pandas and Numpy, and invoke APIs and Web Services 

Gain technical experience through hands on labs and projects and build a portfolio to showcase your work

Prepare for a career in Data Analytics

Receive professional-level training from IBM

Demonstrate your proficiency in portfolio-ready projects

Earn an employer-recognized certificate from IBM

Qualify for in-demand job titles: Data Analyst, Associate Data Analyst, Business Analyst

JOIN - IBM Data Analyst Professional Certificate

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Python Coding challenge - Day 38 | What is the output of the following Python code?

 

py = 2 + 3: In this line, you're creating a variable named py and assigning it the result of the addition of 2 and 3, which is 5. So, py now holds the value 5.

print('py'): In this line, you are using the print() function to display the string 'py'. This code will not print the value of the variable py but will directly print the string 'py' as it is enclosed in single quotes.

Here's your code with step-by-step explanations: 

# Step 1: Calculate the sum of 2 and 3

py = 2 + 3  # py is assigned the value 5

# Step 2: Print the string 'py'

print('py')   # This will print the string 'py' to the console

When you run this code, it will print the string 'py' to the console, not the value stored in the variable py.

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Cybersecurity for Everyone (Free Course)

 

There are 6 modules in this course

Cybersecurity affects everyone, including in the delivery of basic products and services. If you or your organization want to better understand how to address your cybersecurity, this is the course for you and your colleagues to take -- from seasoned professionals to your non-technical colleagues.

Your instructor, Dr. Charles Harry, has served on the front lines with the NSA (National Security Agency) and as an expert advising corporate and institutional leaders on managing cybersecurity risk. And he brings a rare and engaging perspective to help you learn cybersecurity from the ground up.

Cybersecurity for Everyone lays the groundwork to understand and explore the key issues facing policy makers attempting to manage the problem of cybersecurity, from its technical foundations to the domestic and international policy considerations surrounding governance, privacy, and risk management, to applications for achieving the goals of an enterprise, an institution, or a nation. This course is designed for students with some or no background in information technology, whether a novice or active in the cybersecurity field (engineers and computer scientists will learn the broader context and business aspects of cybersecurity), and will provide the principles to understand the current debates shaping a rapidly evolving security landscape.

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Python Coding challenge - Day 37 | What is the output of the following Python code?

 

Solutions - 

In the code a function f that takes two parameters, value and values. The function then modifies the value at the first index of the values list to be 44 and assigns 1 to a variable v, but this v variable is not used anywhere in the function.

After defining the function f, you have a variable t set to 3 and a list v with three elements: [1, 2, 3]. You then call the function f with the arguments t and v, and finally, you print the values of t and the first element of v after the function call.

Here's a step-by-step explanation of what happens:

t is initially set to 3.

v is initially set to [1, 2, 3].

The function f is called with the arguments t and v.

Inside the function, the value at the first index of the values list (which is the same list as v) is modified to be 44. So, v becomes [44, 2, 3]. However, the variable v declared in the function and set to 1 is not used.

After the function call, you print the values of t and the first element of v, which is v[0].

As a result, when you run the code, it will print: 3 44

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Using Databases with Python

 

What you'll learn

Use the Create, Read, Update, and Delete operations to manage databases

Explain the basics of Object Oriented Python

Understand how data is stored across multiple tables in a database

Utilize the Google Maps API to visualize data

Build your subject-matter expertise

This course is part of the Python for Everybody Specialization

When you enroll in this course, you'll also be enrolled in this Specialization.

Learn new concepts from industry experts

Gain a foundational understanding of a subject or tool

Develop job-relevant skills with hands-on projects

Earn a shareable career certificate

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Introduction to Image Generation (Free Course)

 

What you'll learn

How diffusion models work

Real use-cases for diffusion models

Unconditioned diffusion models

Advancements in diffusion models (text-to-image)

There is 1 module in this course

This course introduces diffusion models, a family of machine learning models that recently showed promise in the image generation space. Diffusion models draw inspiration from physics, specifically thermodynamics. Within the last few years, diffusion models became popular in both research and industry. Diffusion models underpin many state-of-the-art image generation models and tools on Google Cloud. This course introduces you to the theory behind diffusion models and how to train and deploy them on Vertex AI. 

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