Python Coding challenge - Day 258 | What is the output of the following Python Code?

 Explanation:

def add_all(*args):

def: This keyword is used to define a function.

add_all: This is the name of the function.

*args:

The * before args allows the function to accept any number of positional arguments.

All the passed arguments are collected into a tuple named args.

  return sum(args)

sum(args):

The sum() function calculates the sum of all elements in an iterable, in this case, the args tuple.

For example, if args = (1, 2, 3, 4), sum(args) returns 10.

print(add_all(1, 2, 3, 4))

add_all(1, 2, 3, 4):

The function is called with four arguments: 1, 2, 3, and 4.

These arguments are collected into the tuple args = (1, 2, 3, 4).

The sum(args) function calculates 1 + 2 + 3 + 4 = 10, and the result 10 is returned.

print():

This prints the result of the add_all() function call, which is 10.

 Final Output:

10

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Functions : What will this code output?

 

def my_generator():

    for i in range(3):

        yield i

gen = my_generator()

print(next(gen))

print(next(gen))

Explanation:

1. my_generator():
   • This defines a generator function that yields values from 0 to 2 (range(3)).
2. gen = my_generator():
   • Creates a generator object gen.
3. print(next(gen)):
   • The first call to next(gen) will execute the generator until the first yield statement.
   • i = 0 is yielded and printed: 0.
print(next(gen)):
• The second call to next(gen) resumes execution from where it stopped.
• The next value i = 1 is yielded and printed: 1.

Output:

0

1

If you call next(gen) again, it will yield 2. A fourth call to next(gen) would raise a StopIteration exception because the generator is exhausted.

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Day 12 : Python Program to Check Armstrong number

 

def armstrong(number):

    num_str = str(number)

    return number == sum(int(digit) ** len(num_str) for digit in num_str)

num = int(input("Enter a number: "))

if armstrong(num):

    print(f"{num} is an Armstrong number.")

else:

    print(f"{num} is not an Armstrong number.")

    

Explanation:

Function Definition

def armstrong(number):

     num_str = str(number)

  # Convert the number to a string to access individual digits.

    return number == sum(int(digit) ** len(num_str) for digit in num_str)

str(number):

 Converts the input number into a string so that you can iterate over its digits (e.g., 153 becomes "153").

len(num_str):

 Counts the number of digits in the number (e.g., for "153", the length is 3).

for digit in num_str: 

Iterates over each digit in the string representation of the number.

int(digit) ** len(num_str):

 Converts the digit back to an integer and raises it to the power of the number of digits.

sum(...): Sums up all the powered values for the digits.

number == ...: Compares the sum of powered digits with the original number to check if they are equal. The function returns True if they match, meaning the number is an Armstrong number.

Input

num = int(input("Enter a number: "))

Prompts the user to input a number, which is converted to an integer using int().

Check and Output

if armstrong(num):

    print(f"{num} is an Armstrong number.")

else:

    print(f"{num} is not an Armstrong number.")

if armstrong(num):: Calls the armstrong function to check if the number is an Armstrong number.

Depending on the result:

If True, prints: <number> is an Armstrong number.

If False, prints: <number> is not an Armstrong number.

#source code --> clcoding.com 

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Day 11 : Python Program to calculate the power and exponent using recursion

 

def power(base, exp):

    if exp == 0:

        return 1

    return base * power(base, exp - 1)

base = int(input("Enter the base number: "))

exp = int(input("Enter the exponent: "))

print(power(base, exp))

This code calculates the power of a number (base) raised to an exponent (exp) using recursion. Let's break it down step-by-step:

Code Breakdown:

1. Function Definition:

   def power(base, exp):
   • A function power is defined with two parameters:
     • base: The base number.
     • exp: The exponent to which the base number will be raised.

2. Base Case:

   if exp == 0:  return 1

   • If the exponent exp is 0, the function returns 1 because any number raised to the power of 0 is 1.

3. Recursive Case:

   return base * power(base, exp - 1)
   • This is the key recursive step.
   • The function multiplies the base by the result of calling power(base, exp - 1).
   • It reduces the exponent by 1 each time, breaking the problem into smaller sub-problems, until exp equals 0 (base case).

   For example, if base = 2 and exp = 3, the recursion works like this:

   power(2, 3) = 2 * power(2, 2)
   power(2, 2) = 2 * power(2, 1)
   power(2, 1) = 2 * power(2, 0)
   power(2, 0) = 1 (base case)

   Then, the results are combined:

   power(2, 1) = 2 * 1 = 2
   power(2, 2) = 2 * 2 = 4
   power(2, 3) = 2 * 4 = 8

4. Taking Input:

   base = int(input("Enter the base number: "))exp = int(input("Enter the exponent: "))

   • The user is prompted to enter the base and exponent values, which are then converted to integers.

5. Calling the Function:

   print(power(base, exp))
   • The power function is called with the input values of base and exp, and the result is printed.

#source code --> clcoding.com

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9 Python function-based quiz questions

1. Basic Function Syntax

What will be the output of the following code?

def greet(name="Guest"):
 return f"Hello, {name}!"
print(greet())
print(greet("John"))

a. Hello, Guest!, Hello, John!
b. Hello, John!, Hello, Guest!
c. Hello, Guest!, Hello, Guest!
d. Error

---

2. Positional and Keyword Arguments

What does the following function call print?

def calculate(a, b=5, c=10):
    return a + b + cprint(calculate(3, c=7))

a. 15
b. 20
c. 25
d. Error

---

3. Function with Variable Arguments

What will be the output of this code?

def add_all(*args):
  return sum(args)print(add_all(1, 2, 3, 4))

a. 10
b. [1, 2, 3, 4]
c. Error
d. 1, 2, 3, 4

---

4. Returning Multiple Values

What will print(result) output?

def divide(a, b):
    quotient = a // b
    remainder = a % b
    return quotient, remainder

result = divide(10, 3)
print(result)

a. 10, 3
b. (3, 1)
c. 3.1
d. Error

---

5. Scope of Variables

What will the following code print?

x = 5

def update_value():
    x = 10
    print(x)

update_value()
print(x)

a. 10, 5
b. 10, 10
c. 5, 5
d. Error

---

6. Default and Non-Default Arguments

Why does this code throw an error?

def example(a=1, b): return a + b

a. b is not assigned a default value
b. Default arguments must come after non-default arguments
c. Both a and b must have default values
d. No error

---

7. Lambda Functions

What will the following code print?

double = lambda x: x * 2print(double(4))

a. 2
b. 4
c. 8
d. Error

---

8. Nested Functions

What will the following code output?

def outer_function(x):
    def inner_function(y):
        return y + 1
    return inner_function(x) + 1
print(outer_function(5))

a. 6
b. 7
c. 8
d. Error

---

9. Anonymous Functions with map()

What is the result of the following code?

numbers = [1, 2, 3, 4]
result = list(map(lambda x: x ** 2, numbers))print(result)

a. [1, 4, 9, 16]
b. [2, 4, 6, 8]
c. None
d. Error

---

1. Basic Function Syntax

Answer: a. Hello, Guest!, Hello, John!

Explanation:

• Default value Guest is used when no argument is passed.
• Passing "John" overrides the default value.

---

2. Positional and Keyword Arguments

Answer: b. 20

Explanation:

• a = 3, b = 5 (default), c = 7 (overrides the default value of 10).
• Result: 3 + 5 + 7 = 20.

---

3. Function with Variable Arguments

Answer: a. 10

Explanation:

• *args collects all arguments into a tuple.
• sum(args) calculates the sum: 1 + 2 + 3 + 4 = 10.

---

4. Returning Multiple Values

Answer: b. 

(3, 1)

Explanation:

• The function returns a tuple (quotient, remainder).
• 10 // 3 = 3 (quotient), 10 % 3 = 1 (remainder).

---

5. Scope of Variables

Answer: a. 10, 5

Explanation:

• x = 10 inside the function is local and does not affect the global x.
• Outside the function, x = 5.

---

6. Default and Non-Default Arguments

Answer: b. Default arguments must come after non-default arguments

Explanation:

• In Python, arguments with default values (like a=1) must appear after those without defaults (like b).

---

7. Lambda Functions

Answer: c. 8

Explanation:

• The lambda function doubles the input: 4 * 2 = 8.

---

8. Nested Functions

Answer: b. 7

Explanation:

• inner_function(5) returns 5 + 1 = 6.
• Adding 1 in outer_function: 6 + 1 = 7.

---

9. Anonymous Functions with map()

Answer: a. [1, 4, 9, 16]

Explanation:

• The lambda function squares each number in the list:
  [1^2, 2^2, 3^2, 4^2] = [1, 4, 9, 16].

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Code to Send Laptop Notifications using Python

 

from plyer import notification

# Send notification

notification.notify(

    title="Reminder",

    message="Take a break and stretch!",

    app_name="Python Notifier",

    timeout=10  

)

#source code --> clcoding.com

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Python OOPS Challenge | Day 15 | What is the output of following Python code?

The code snippet in the image is invalid and will raise an exception. Here's why:

Explanation:

1. Class TV Definition:

class TV:

    pass

A class TV is defined, but it has no attributes or methods.

2. Object Creation:

obj = TV()

An object obj is created from the TV class.

3. Dynamic Attribute Assignment:

obj.price = 200

A new attribute price is dynamically added to the obj instance, and its value is set to 200.

4. Invalid Access of self:

print(self.price)

The variable self is used outside of a method in the class, which is invalid.

In Python, self is a convention used as the first parameter of instance methods to refer to the calling instance. It cannot be used directly outside a method context.

What Happens:

When the Python interpreter reaches the print(self.price) statement, it will raise a NameError because self is not defined in the global scope.

Corrected Code (if you want to print the price):

To fix the code, the price attribute can be printed using the instance obj instead of self:

class TV:

    pass

obj = TV()

obj.price = 200

print(obj.price) # Outputs: 200

In this corrected version, obj.price correctly accesses the price attribute of the obj instance.

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10-Question quiz on Python Data Types

 

1.Which of the following is a mutable data type in Python?

Options:

a) List

b) Tuple

c) String

d) All of the above

2. What is the data type of True and False in Python?

Options:

a) Integer

b) Boolean

c) String

d) Float

3. Which data type allows duplicate values?

Options:

a) Set

b) Dictionary

c) List

d) None of the above

4. Which Python data type is used to store key-value pairs?

Options:

a) List

b) Tuple

c) Dictionary

d) Set

Intermediate Questions

5. What does the type() function do in Python?

Options:

a) Checks the length of a variable

b) Returns the data type of a variable

c) Converts a variable to another type

d) Prints the variable's value

6. Which of the following Python data types is ordered and immutable?

Options:

a) List

b) Tuple

c) Set

d) Dictionary

7. What is the default data type of a number with a decimal point in Python?

Options:

a) Integer

b) Float

c) Complex

d) Boolean

Advanced Questions

8. What is the main difference between a list and a tuple in Python?

Options:

a) Lists are ordered, tuples are not

b) Tuples are immutable, lists are mutable

c) Lists are faster than tuples

d) There is no difference

9. Which of the following data types does not allow duplicate values?

Options:

a) List

b) Tuple

c) Set

d) Dictionary

10.What data type will the expression 5 > 3 return?

Options:

a) Integer

b) Boolean

c) String

d) None

Basic Questions

1. Which of the following is a mutable data type in Python?
   Answer: a) List

2. What is the data type of True and False in Python?
   Answer: b) Boolean

3. Which data type allows duplicate values?
   Answer: c) List

4. Which Python data type is used to store key-value pairs?
   Answer: c) Dictionary

---

Intermediate Questions

5. What does the type() function do in Python?
   Answer: b) Returns the data type of a variable

6. Which of the following Python data types is ordered and immutable?
   Answer: b) Tuple

7. What is the default data type of a number with a decimal point in Python?
   Answer: b) Float

---

Advanced Questions

8. What is the main difference between a list and a tuple in Python?
   Answer: b) Tuples are immutable, lists are mutable

9. Which of the following data types does not allow duplicate values?
   Answer: c) Set

10. What data type will the expression 5 > 3 return?
    Answer: b) Boolean

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Combined operators in Python

 

What does the following Python code return?

a = 9

b = 7

a *= 2

b += a // 3

a %= 4

print(a, b)

Answer: Let's break down the code step by step:

a = 9

b = 7

Here, a is assigned the value 9, and b is assigned the value 7.

Step 1: a *= 2

This is a combined multiplication assignment operator (*=). It multiplies a by 2 and then assigns the result back to a.

a = a * 2
• a = 9 * 2 = 18 Now, a = 18.

Step 2: b += a // 3

This is a combined addition assignment operator (+=). It adds the result of a // 3 to b and assigns the result back to b.

• a // 3 performs integer division of a by 3. Since a = 18, we calculate 18 // 3 = 6.
• Now, b += 6, which means b = b + 6 = 7 + 6 = 13. Now, b = 13.

Step 3: a %= 4

This is a combined modulus assignment operator (%=). It calculates the remainder when a is divided by 4 and assigns the result back to a.

a = a % 4
• a = 18 % 4 = 2 (since the remainder when dividing 18 by 4 is 2). Now, a = 2.

Final Output:

After all the operations:

a = 2

b = 13

So, the code will print:  2 13

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Hands-on Foundations for Data Science and Machine Learning with Google Cloud Labs Specialization

 

The Hands-On Foundations for Data Science and Machine Learning Specialization on Coursera, offered by Google Cloud, is designed to equip learners with practical skills in data science and machine learning. Through real-world projects and interactive labs, learners gain hands-on experience working with Google Cloud tools, Python, and SQL. This program is ideal for those seeking to master data analysis, machine learning basics, and cloud technologies, providing a strong foundation for roles in data science, machine learning engineering, and data analysis.

The Hands-On Foundations for Data Science and Machine Learning Specialization on Coursera, offered by Google Cloud, provides a practical approach to mastering data science and machine learning. This program is designed for learners who want to acquire technical expertise and apply it through real-world labs powered by Google Cloud.

What You’ll Learn

Data Science Fundamentals

Understand the foundational concepts of data science and machine learning.

Work with tools like BigQuery and Jupyter Notebooks.

Hands-On Learning with Google Cloud Labs

Practice on real-world datasets with guided labs.

Learn to preprocess and analyze data using Python and SQL.

Machine Learning Basics

Build and evaluate machine learning models.

Explore TensorFlow and AutoML tools.

Big Data Tools

Learn to manage and query large datasets efficiently.

Understand how to utilize cloud-based solutions like Google BigQuery.

Why Choose This Specialization?

Real-World Skills: Unlike purely theoretical courses, this specialization integrates labs that mimic actual workplace tasks.

Cloud Integration: The use of Google Cloud tools prepares learners for industry-standard workflows.

Flexibility: The self-paced structure allows learners to study alongside work or other commitments.

Career Impact

This specialization is perfect for:

Aspiring data scientists and machine learning engineers.

Professionals looking to enhance their data-handling skills with cloud technologies.

Students aiming to gain hands-on experience with industry-leading tools.

Future Enhancements through this Specialization

Completing the Hands-On Foundations for Data Science and Machine Learning Specialization equips you with industry-relevant skills to leverage cloud tools and machine learning frameworks. This can open doors to advanced opportunities such as:

Specialization in AI and Machine Learning: Build on your foundational knowledge to develop deep expertise in neural networks and AI technologies.

Cloud Data Engineering: Transition into roles managing large-scale cloud-based data solutions.

Advanced Certifications: Pursue advanced Google Cloud certifications to validate your expertise.

Join Free: Hands-on Foundations for Data Science and Machine Learning with Google Cloud Labs Specialization

Conclusion:

The Hands-On Foundations for Data Science and Machine Learning Specialization bridges the gap between theory and practice, offering learners the chance to work on real-world projects with the latest tools. Whether you’re starting in data science or looking to expand your skills, this program is a powerful way to accelerate your learning journey.

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Expressway to Data Science: Python Programming Specialization

 

The Python Programming for Data Science Specialization on Coursera, offered by the University of Colorado Boulder, is tailored for beginners eager to harness Python for data-driven insights. It combines foundational programming skills with specialized training in essential data science tools and techniques.

The Python Programming for Data Science Specialization on Coursera by the University of Colorado Boulder is an ideal starting point for beginners. It covers Python basics, including variables, functions, loops, and essential data science libraries like Pandas, Numpy, and Matplotlib. The program features hands-on projects to teach data manipulation, exploratory analysis, and visualization. With self-paced learning, it equips learners with practical skills for roles in data analytics and science.

Dive into Data Science with Python: A Comprehensive Specialization

The Python Programming for Data Science Specialization on Coursera, offered by the University of Colorado Boulder, is tailored for beginners eager to harness Python for data-driven insights. It combines foundational programming skills with specialized training in essential data science tools and techniques.

Completing the Python Programming for Data Science Specialization can open doors to future enhancements in your career. With foundational skills in Python and data science tools, learners can explore advanced certifications or specializations in fields such as machine learning, artificial intelligence, and big data analytics. These skills are essential for roles like data scientist, machine learning engineer, or business analyst. The hands-on projects in this program also prepare you to solve real-world challenges, making you a valuable asset in data-driven industries.

What you'll learn

• Fundamentals of Python Programming
• Data Manipulation Packages such as Numpy and Pandas
• Data Visualization Packages such as Matplotlib and Seaborn

This specialization introduces Python’s versatile capabilities, focusing on:

Core Python Programming: Variables, loops, functions, and data structures.

Data Science Libraries: Master libraries like Pandas, Numpy, Matplotlib, and Seaborn for data analysis and visualization.

Exploratory Data Analysis (EDA): Learn how to clean, manipulate, and interpret datasets effectively.

Hands-On Learning

The program emphasizes real-world applications, offering projects where learners work with datasets to create visualizations and derive actionable insights.

Benefits and Career Impact

Whether you’re a student, a professional, or a career changer, this specialization helps you:

Build a strong foundation in Python and data analysis.

Prepare for roles like data analyst or junior data scientist.

Obtain a Coursera certificate to showcase your skills.

Why Choose This Course?

Beginner-friendly and self-paced.

Taught by university experts with practical, industry-aligned lessons.

Gain skills applicable across industries, from finance to healthcare and beyond.

Join Free: Expressway to Data Science: Python Programming Specialization

Conclusion:

The Python Programming for Data Science Specialization is an excellent pathway for beginners to master Python and apply it to real-world data science challenges. With its focus on essential libraries, hands-on projects, and foundational skills, this program prepares learners for a successful career in data analytics or data science. Its self-paced structure makes it accessible for students, professionals, and career changers alike.

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Day 10 : Python Program to find sum of first N Natural Numbers

 

n = int(input("Enter a number: "))

sum_of_numbers = n * (n + 1) // 2

print(f"The sum of the first {n} natural numbers is: {sum_of_numbers}")

Code Explanation

Input:

n = int(input("Enter a number: "))

input(): Prompts the user to enter a number.

int(): Converts the entered value (a string) into an integer.

𝑛

n represents the count of natural numbers to sum.

Sum Calculation

sum_of_numbers = n * (n + 1) // 2

This implements the mathematical formula for the sum of the first 

𝑛 natural numbers

2: Divides the product by 2 using integer division (ensures the result is an integer).

Output

print(f"The sum of the first {n} natural numbers is: {sum_of_numbers}")

f"The sum of the first {n} natural numbers is: {sum_of_numbers}":

Formats the string to display 

𝑛

n and the calculated sum.

#source code --> clcoding.com 

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DeepLearning.AI Data Engineering Professional Certificate

 The Data Engineering Professional Certificate from DeepLearning.AI on Coursera is designed for anyone looking to break into the data engineering field. This program covers essential topics like data pipelines, SQL, Python, and cloud technologies. By completing the course, you'll gain practical experience working with large datasets and cloud-based infrastructure. The certificate is perfect for beginners and includes hands-on projects to solidify your learning.

key points for the Data Engineering Professional Certificate:

Advanced Data Integration: Learn how to integrate complex data sources for efficient decision-making.

Data Security & Compliance: Understand best practices for data security, privacy, and compliance in engineering environments.

Collaboration Skills: Develop skills to work with data scientists and business analysts in cross-functional teams.

Industry-Relevant Experience: Build a portfolio with hands-on projects to demonstrate your skills to potential employers.

What you'll learn

• Develop a mental model for the field of data engineering as a whole, including the data engineering lifecycle and its undercurrents.
• Learn a framework for approaching any data engineering project you work on so you can effectively create business value with data.
• Build your skill in the five stages of the data engineering lifecycle; including generating, ingesting, storing, transforming, and serving data.
• Learn the principles of good data architecture and apply them to build data systems on the AWS cloud.

Who should take this course:

The Data Engineering Professional Certificate is suitable for:

Beginners: Those with basic programming skills who want to learn data engineering from the ground up.

Aspiring Data Engineers: Individuals who aim to develop expertise in creating and managing data pipelines and cloud technologies.

Current Data Professionals: Data analysts, data scientists, or software engineers looking to deepen their knowledge in database management, cloud services, and data architecture.

Career Changers: Those transitioning into tech and data roles with no prior experience in data engineering.

Future Enhancements through the Data Engineering Professional Certificate:

Upon completing the course, you can advance your career by gaining proficiency in scalable data solutions and cloud technologies, making you eligible for roles like cloud architect, data architect, or machine learning engineer. With a deep understanding of data pipelines, security, and data integration techniques, you'll be prepared to work with the latest tools and tackle increasingly complex data problems, improving your potential for career advancement and providing the skill set required for evolving tech roles.

Join Free: DeepLearning.AI Data Engineering Professional Certificate

Conclusion:

The Data Engineering Professional Certificate equips learners with crucial skills to build and manage data systems, empowering them to pursue careers in data engineering. By mastering cloud technologies, data pipelines, and databases, you'll be well-prepared to solve complex data challenges and advance your career in tech. This certificate offers a comprehensive pathway to becoming a highly skilled data engineer, capable of supporting the data infrastructure needs of modern organizations.

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Image Mirroring with Python

 

from PIL import Image

Original_Image = 'pushpa.png'

Image.open(Original_Image) 

img = Image.open(Original_Image)  

Mirror_Image = img.transpose(Image.FLIP_LEFT_RIGHT)

Mirrored_Image = 'pushpa_mirror.png'

Mirror_Image.save(Mirrored_Image)

Image.open(Mirrored_Image) 

#source code --> clcoding.com

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Day 9 : Python Program to Convert Centimeters to Feet and Inches

 

def conversion(cm):

    

    total_inches = cm / 2.54

    feet = int(total_inches // 12) 

    inches = total_inches % 12 

    return feet, inches

cm = float(input("Enter length in centimeters: "))

feet, inches = conversion(cm)

print(f"{cm} cm is approximately {feet} feet and {inches:.2f} inches.")

Code Explanation

Function Definition

def conversion(cm):

This function takes one argument, cm, which represents the length in centimeters.

Conversion to Inches

total_inches = cm / 2.54

cm / 2.54: Divides the length in centimeters by 2.54 to convert it into inches.

Convert Inches to Feet and Remaining Inches

feet = int(total_inches // 12)

total_inches // 12: Uses floor division (//) to calculate the number of whole feet in the total inches.

int(): Converts the result to an integer, discarding the decimal part.

inches = total_inches % 12

total_inches % 12: Calculates the remainder after dividing total inches by 12, representing the remaining inches.

Return Values

return feet, inches

The function returns two values: the number of whole feet (feet) and the remaining inches (inches).

Input

cm = float(input("Enter length in centimeters: "))

Prompts the user to input a length in centimeters.

float(input(...)) ensures that the input can be a decimal number (e.g., 175.5).

Call the Function and Display the Result

feet, inches = conversion(cm)

Calls the conversion function with the input cm.

The returned values (feet and inches) are unpacked into two variables.

print(f"{cm} cm is approximately {feet} feet and {inches:.2f} inches.")

Formats the result:

{cm}: Displays the original input in centimeters.

{feet}: Displays the number of whole feet.

{inches:.2f}: Displays the remaining inches with two decimal places.

#source code --> clcoding.com 

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Mastering Named Tuples in Python (Python Beast Series: Mastering the Code Jungle Book 41)

 

"Mastering Named Tuples in Python"

It is an essential guide for Python developers seeking to enhance their coding skills and optimize data handling in their applications. This comprehensive book delves into the world of named tuples, an often underutilized yet powerful feature of Python that combines the efficiency of tuples with the readability of dictionaries.

From novice programmers to seasoned developers, readers will find valuable insights and practical techniques to leverage named tuples effectively in their projects. The book begins with a solid foundation, explaining what named tuples are and why they are crucial in modern Python development. It then progresses through increasingly advanced topics, ensuring a thorough understanding of this versatile data structure.

Key Features:

• In-depth exploration of named tuples and their applications
• Step-by-step tutorials with real-world examples
• Comparison of named tuples with other data structures
• Best practices for clean and efficient code using named tuples
• Advanced techniques for extending and optimizing named tuples
• Transition strategies from named tuples to modern alternatives like data classes

Chapters include:

Introduction to Named Tuples

Creating and Using Named Tuples

Named Tuples vs. Dictionaries and Classes

Advanced Named Tuple Techniques

Named Tuples in Data Processing

Optimizing Performance with Named Tuples

Testing and Debugging with Named Tuples

Named Tuples in API Design

Transitioning to Modern Alternatives

Best Practices and Design Patterns

Throughout the book, readers will find:

Clear explanations of complex concepts

Practical code examples that can be immediately applied

Tips for writing more maintainable and readable code

Insights into making informed design decisions

Strategies for improving application performance

Whether you're working on data processing pipelines, building robust APIs, or simply aiming to write cleaner Python code, "Mastering Named Tuples in Python" provides the knowledge and tools you need to excel. By the end of this book, you'll have a deep understanding of named tuples and the confidence to use them effectively in your own projects.

This book is ideal for:

Python developers looking to expand their skillset

Data scientists seeking efficient data structures

Software engineers aiming to write cleaner, more maintainable code

Students and educators in computer science and programming

Anyone interested in advanced Python features and optimization techniques

Unlock the full potential of Python's named tuples and take your coding to the next level with "Mastering Named Tuples in Python." Whether you're building small scripts or large-scale applications, the insights in this book will help you write more elegant, efficient, and powerful Python code.

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Mastering Python Fundamentals guide: Comprehensive to Programming, Web Development and Data Exploration in Just One Week with Hands-On Exercises in ... and Artificial Intelligence Techniques

 

Mastering Python Fundamentals guide

Mastering the fundamentals of Python is a journey that many embark on, often driven by a desire to automate tasks, analyze data, or even develop web applications. I remember my own experience when I first dipped my toes into the world of programming. It felt daunting at first, but Python’s simplicity and readability quickly made it an enjoyable adventure.

When I started learning Python, I was struck by how intuitive the syntax was compared to other programming languages. For instance, the way Python handles indentation instead of brackets to define code blocks felt refreshing. It forced me to write cleaner code, and I appreciated how it encouraged good practices right from the beginning. I often found myself experimenting with small scripts, like automating my daily tasks. There’s something incredibly satisfying about seeing a program you wrote work successfully!

One of the first concepts I tackled was variables and data types. Understanding how to manipulate strings, integers, and lists opened up a whole new world of possibilities. I remember struggling a bit with lists at first, especially when it came to slicing. However, once I grasped the concept, I found it to be an incredibly powerful tool for organizing data. I recall a particular project where I needed to analyze a dataset, and being able to slice and dice the data efficiently was a game changer.

As I progressed, I delved into control structures like loops and conditionals. These were essential for making my programs dynamic and responsive. I still chuckle at the time I accidentally created an infinite loop while trying to iterate through a list. It was a learning moment, to say the least! Debugging is such an integral part of programming, and I quickly learned that it’s not just about fixing errors but also about understanding the logic behind the code.

Functions were another fundamental concept that I found fascinating. They allowed me to break my code into manageable pieces, making it easier to read and maintain. I often collaborated with friends on small projects, and we found that using functions helped us avoid redundancy and keep our code organized. In fact, I still use that principle today, whether I’m coding alone or with a team.

As I continued my journey, I discovered libraries and frameworks that expanded what I could do with Python. For instance, using Pandas for data analysis was a revelation. It transformed how I approached data tasks. I also dabbled in web development using Flask, which was a fun way to see my code come to life on the web.

In recent months, I’ve noticed a surge in the use of Python for machine learning and data science. It’s exciting to see how the community is growing and how accessible these tools have become. Platforms like Jupyter Notebooks have made it easier for beginners to experiment and visualize their code in real-time.

Ultimately, mastering Python fundamentals is not just about learning syntax; it’s about developing a mindset for problem-solving. The more I practiced, the more confident I became in my abilities. I encourage anyone starting out to embrace the challenges and celebrate the small victories along the way. Whether you’re automating a simple task or building a complex application, the skills you gain.

Key points of the book

"Mastering Python Fundamentals Guide: Comprehensive to Programming, Web Development, and Data Exploration in Just One Week with Hands-On Exercises in Python and Artificial Intelligence Techniques":

Comprehensive Overview: Covers Python fundamentals, web development, data exploration, and artificial intelligence in one week.

Hands-On Exercises: Provides practical, hands-on coding examples and projects for each concept.

Focus on Real-World Applications: Emphasizes practical applications such as web development and AI.

Structured Learning Path: Designed for fast learning with clear explanations, focusing on both theory and practice.

AI Techniques: Introduces basic artificial intelligence concepts and how to implement them with Python.

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Mastering Python: From Basics to Advanced Concepts

 

Mastering Python: From Basics to Advanced Concepts

Dive into the world of Python with "Mastering Python: From Basics to Advanced Concepts," an all-encompassing guide that takes you on a journey from the foundational elements of Python programming to the most advanced topics. Whether you're a beginner looking to get started or an experienced programmer seeking to sharpen your skills, this eBook provides the knowledge and tools you need to succeed.

What's Inside:

Introduction to Python: Learn about Python's history, setup, and the best tools and IDEs to use.

Python Basics: Understand variables, data types, basic operations, control structures, and functions.

Data Structures: Explore lists, tuples, dictionaries, and sets, and how to manipulate them.

Object-Oriented Programming: Dive into OOP principles with classes, objects, inheritance, polymorphism, and more.

Advanced Functions: Master lambda functions, decorators, generators, and higher-order functions.

File Handling: Gain proficiency in reading from and writing to various file types, including text, CSV, and JSON.

Error Handling: Learn to manage errors and exceptions gracefully to create robust applications.

Working with Libraries: Get hands-on with essential Python libraries like NumPy, Pandas, Matplotlib, and more.

Web Development: Build web applications using Flask, handle forms, and work with databases.

Database Interaction: Work with SQL and NoSQL databases, using tools like SQLAlchemy.

Multithreading and Multiprocessing: Optimize your programs with concurrent and parallel execution.

Testing and Debugging: Write tests, debug your code, and ensure high-quality software.

Advanced Topics: Explore regular expressions, web scraping, machine learning, deep learning, and network programming.

Best Practices: Follow coding standards, version control, documentation, and security practices.

Final Project: Build a complete web application to consolidate your learning and showcase your skills.

Embark on this comprehensive journey to mastering Python, where each chapter is designed to build your expertise and prepare you for real-world challenges.

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Mastering Python for Insightful Data Exploration for beginners: A Thorough Journey into Analytics, Metrics, and Data Science Techniques

 

Mastering Python for Insightful Data Exploration: A Thorough Journey into Analytics, Metrics, and Data Science Techniques

When I first dipped my toes into the world of data science, I was overwhelmed by the sheer volume of information and tools available. Python, with its simple syntax and robust libraries, quickly became my go-to language for data exploration. I remember sitting at my desk, staring at lines of code, feeling both excited and intimidated. But as I delved deeper, I discovered that mastering Python was not just about learning to code; it was about unlocking insights hidden within data.

One of the first libraries I encountered was Pandas. I can still recall the thrill of loading a dataset and effortlessly slicing and dicing it to extract meaningful metrics. The ability to manipulate data frames made me feel like a magician. I vividly remember a project where I analyzed sales data for a local business. Using Pandas, I was able to identify trends and patterns that the owner had never noticed. It was a rewarding experience that solidified my passion for data analytics.

As I progressed, I found myself exploring NumPy, which was essential for numerical computations. The speed and efficiency of NumPy arrays compared to traditional lists blew my mind. I often used NumPy to perform complex calculations on large datasets, and it felt like I was wielding a powerful tool. The ability to handle multidimensional data with ease opened up new avenues for analysis.

Visualization is another critical aspect of data exploration, and here, Matplotlib and Seaborn became my trusted companions. I remember the first time I created a beautiful scatter plot to visualize the relationship between advertising spend and sales revenue. Seeing the data come to life through colorful graphs was exhilarating. It was a reminder that data isn’t just numbers; it tells a story, and visualizations are the illustrations that bring that story to the forefront.

Collaboration also played a significant role in my journey. I often turned to online communities and forums where data enthusiasts shared their insights and experiences. Engaging with others not only helped me troubleshoot issues but also inspired me to think creatively about data problems. I learned the importance of sharing knowledge and collaborating with peers, which ultimately enriched my understanding of analytics.

As I reflect on my journey, I realize that mastering Python for data exploration is an ongoing process. The field of data science is constantly evolving, with new techniques and tools emerging regularly. Keeping up with the latest trends, such as machine learning and artificial intelligence, has become essential. I’ve started using tools like Jupyter Notebooks for interactive coding, which has made my workflow more efficient and enjoyable.

In conclusion, mastering Python for data exploration has been a transformative journey. From the initial challenges to the thrill of uncovering insights, each step has been rewarding. I encourage anyone interested in data science to embrace the learning process, experiment with different libraries, and, most importantly, collaborate with others. The world of data is vast, and with Python as your ally, you can navigate it with confidence and curiosity.

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Python in 2025 with example and code: Learn Python Programming with Easy Examples, Real-World Projects, and Clear

 

"Python in 2025: Learn Python Programming with Easy Examples, Real-World Projects, and Clear" is designed for beginners and intermediate programmers looking to enhance their Python skills. It focuses on practical learning, offering simple examples, step-by-step tutorials, and real-world project ideas. The book aims to bridge the gap between theory and application, making Python accessible for diverse applications like automation, data science, and web development.

Unlock the power of Python with this easy-to-understand guide designed for beginners and students. Covering everything from basic concepts like variables and data types to advanced topics like object-oriented programming and exception handling, this book offers clear explanations and practical examples. Whether you're starting your coding journey or refining your skills, this 2025 edition is the perfect companion to help you master Python with ease.

Key points about the book "Python in 2025: Learn Python Programming with Easy Examples, Real-World Projects, and Clear" :

Beginner-Friendly: The book introduces Python programming in an easy-to-understand way, suitable for those with little to no programming experience.

Hands-On Learning: Includes practical examples and real-world projects to enhance learning by doing.

Modern Python Applications: Covers relevant topics and trends in Python's use in 2025, such as AI, data science, and web development.

Step-by-Step Guidance: Offers clear explanations and structured tutorials to build foundational and advanced skills.

Focus on Clarity: Emphasizes simplicity and readability, making complex topics easier to grasp.

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Python Desktop Reference: Coding Companion Handbook

 

 "Python Desktop Reference: Coding Companion Handbook" 

It is a concise and practical guide designed for Python developers. It serves as a quick reference, summarizing key Python concepts, syntax, and libraries. This handbook is ideal for programmers looking to efficiently recall information while coding. Whether you're a beginner or an experienced developer, the book emphasizes usability by organizing content for easy access, covering data types, control flow, functions, object-oriented programming, and essential libraries. It's a valuable resource for enhancing productivity and coding confidence.

Python desktop reference aims to be all in one quick reference book for programmers and data scientists. This book is also a great resource for educators. The chapters are written in a concise manner with practical ready-to-use examples. The revised edition also includes more sample codes and topics such as multithreading, networking and database access. The source code of this book is live, that means the author will keep adding new sample codes and projects. This book can be handy for everyday python programming as well as reviewing key concepts just before exam or interviews.

 "Python Desktop Reference: Coding Companion Handbook", you can expect to learn:

Core Python Syntax: Quick references for data types, variables, and control flow structures like loops and conditionals.

Functions and Classes: How to write and organize reusable code using Python’s functional and object-oriented programming features.

Libraries and Modules: Summaries of commonly used libraries for tasks like file handling, data processing, and web development.

Best Practices: Coding standards and tips for writing clean and efficient Python code.

Debugging Tools: Techniques and tools for resolving coding issues efficiently.

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Mixing Integers and Floats in Python

 a = (1 << 52)

print((a + 0.5) == a)

This Python code explores the behavior of floating-point numbers when precision is stretched to the limits of the IEEE 754 double-precision floating-point standard. Let me break it down:

Code Explanation:

1. a = (1 << 52):

   • 1 << 52 is a bitwise left shift operation. It shifts the binary representation of 1 to the left by 52 bits, effectively calculating $2^{52}$.
   • So, a will hold the value $2^{52} = 4,503,599,627,370,496$.
2. print((a + 0.5) == a):
   • This checks whether adding 0.5 to a results in the same value as a when using floating-point arithmetic.
   • Floating-point numbers in Python are represented using the IEEE 754 double-precision format, which has a 52-bit significand (or mantissa) for storing precision.
   • At $2^{52}$, the smallest representable change (called the machine epsilon) in floating-point arithmetic is $1.0$. This means any value smaller than 1.0 added to $2^{52}$ is effectively ignored because it cannot be represented precisely.

3. What happens with (a + 0.5)?:

   • Since $0.5$ is less than the floating-point precision at $2^{52}$ (which is $1.0$), adding $0.5$ to $a$ does not change the value of a in floating-point arithmetic.
   • Therefore, (a + 0.5) is rounded back to a.

4. Result:

   • The expression (a + 0.5) == a evaluates to True.

Key Insight:

• Floating-point arithmetic loses precision for very large numbers. At $2^{52}$, $0.5$ is too small to make a difference in the floating-point representation.

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Bitwise and Precision in Python

a = (1 << 52)

print((a + 0.5) == a)

Code Explanation:

a = (1 << 52)
print((a + 0.5) == a)

1. 1 << 52:
   • The << operator is a bitwise left shift.
   • 1 << 52 shifts the binary representation of 1 to the left by 52 places, resulting in $2^{52}$.
   • So, a = 1 << 52 sets a to $2^{52}$, which is 4,503,599,627,370,496.
2. a + 0.5:
   • Adds 0.5 to the value of a. In this case, $a + 0.5 = 4,503,599,627,370,496.5$.

3. Equality Check (==):

• The expression (a + 0.5) == a compares whether $a + 0.5$ is equal to $a$.

Why does the result evaluate to True?

This happens because of the limitations of floating-point precision in Python:

• Python uses 64-bit floating-point numbers (IEEE 754 standard).
• A 64-bit floating-point number can precisely represent integers up to $2^{53}$ (inclusive), but not fractional values beyond this precision.
• $2^{52} = 4,503,599,627,370,496$ is close to the upper limit of this precision. When adding 0.5 to $2^{52}$, the fractional part (0.5) is effectively rounded off due to the lack of precision.
• As a result, $a + 0.5$ is rounded back to $a$, making (a + 0.5) == a evaluate to True.

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Python Coding challenge - Day 255 | What is the output of the following Python Code?

 

Explanation:

nums = range(10):

The range(10) function generates a sequence of numbers starting from 0 up to (but not including) 10.

The result of range(10) is: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9].

result = [x for x in nums if x > 5]:

This is a list comprehension that creates a new list by iterating over the numbers in nums.

It applies a filter condition (if x > 5) to include only numbers greater than 5 in the new list.

Start with the first number in nums (0).

Check if it satisfies the condition x > 5.

For 0, x > 5 is False, so it is skipped.

For 1, x > 5 is False, so it is skipped.

This continues until x = 6.

For 6, x > 5 is True, so 6 is added to the new list.

Similarly, 7, 8, and 9 also satisfy the condition and are added to the list.

The result is [6, 7, 8, 9].

print(result):

The print function outputs the value of result to the console.

Since the result list contains [6, 7, 8, 9], this is what gets printed.

Final Output:

[6, 7, 8, 9]

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