Interesting facts about Dictionaries

 Dictionary MethodsDictionaries come with several handy methods such as setdefault, update, pop, popitem, and clear.my_dict = {'name': 'Alice', 'age': 25}# setdefaultmy_dict.setdefault('city', 'Unknown')print(my_dict)  # updatemy_dict.update({'age':...

Read More

Python Coding challenge - Day 206 | What is the output of the following Python Code?

 Code:dict_a = {"a": 1, "b": 2}dict_b = {"a": 1, "b": 2}print(dict_a is dict_b)print(dict_a == dict_b)Solution and Explanation: This code creates two dictionaries, dict_a and dict_b, with identical key-value pairs. Then it prints...

Read More

Python Coding challenge - Day 205 | What is the output of the following Python Code?

 Code: num = [5, 6]*midd, lst = num, num[-1]  print(midd, lst)Solution and Explanation: Let's break down the code step by step:num = [5, 6]: This line creates a list called num containing two integers, 5 and 6.*midd,...

Read More

Python Coding challenge - Day 204 | What is the output of the following Python Code?

 Code:num = [7, 8, 9]*mid, last = num[:-1]  print(mid, last)Solution and Explanation:let's break down the code:num = [7, 8, 9]*mid, last = num[:-1]  print(mid, last)num = [7, 8, 9]: This line creates a list called num...

Read More

Python Libraries for Financial Analysis and Portfolio Management

 import statsmodels.api as smimport numpy as np# Generate some sample datax = np.random.rand(100)y = 2 * x + np.random.randn(100)# Fit a linear regression modelmodel = sm.OLS(y, sm.add_constant(x)).fit()print("Regression coefficients:",...

Read More

Python Coding challenge - Day 203 | What is the output of the following Python Code?

 Code:num = [1, 2, 3]*middle, last = numprint(middle, last)Solution and Explanation:Let's break down the code step by step:num = [1, 2, 3]: This line initializes a list called num with three elements: 1, 2, and 3.*middle, last = num: This...

Read More

Happy Mother's Day!

 Code:import pyfigletfrom termcolor import coloredimport randomdef get_random_font_style():    # List of available Figlet font styles    font_styles = pyfiglet.FigletFont.getFonts()     # Choose a random...

Read More

Type Hints in Python

 Type hints in Python are an excellent tool for improving code quality and maintainability, especially in larger projects. from typing import Optionalclass TreeNode:    def __init__(self, value: int) -> None:   ...

Read More

Automating File Compression with gzip

 Code:import gzipimport shutildef compress_file(input_file, output_file):    with open(input_file, 'rb') as f_in:        with gzip.open(output_file, 'wb') as f_out:           ...

Read More

Python Coding challenge - Day 202 | What is the output of the following Python Code?

 Code:x = [1, 2, 3, 4, 5]a, *_, b = xprint(a, b)Solution and Explanation:Let's break down the Python code step by step:x = [1, 2, 3, 4, 5]a, *_, b = xprint(a, b)List Assignment: x = [1, 2, 3, 4, 5]This line initializes a list named x with...

Read More

Donut Charts using Python

 Code:import matplotlib.pyplot as plt# Data to plotlabels = ['A', 'B', 'C', 'D']sizes = [15, 30, 45, 10]# Plotplt.pie(sizes, labels=labels, autopct='%1.1f%%', startangle=140)# Draw a circle at the center of pie to make it look like a donutcentre_circle...

Read More

Python Coding challenge - Day 201 | What is the output of the following Python Code?

 Code:class Powerizer(int):    def __pow__(self, other):        return super().__pow__(other ** 2)p = Powerizer(2)result = p ** 3print(result)  Solution and Explanation:let's break down the code:Class...

Read More

Python Coding challenge - Day 200 | What is the output of the following Python Code?

 Code:class Decrementer(int):    def __sub__(self, other):        return super().__sub__(other - 1)d = Decrementer(5)result = d - 3print(result)  Solution and Explanation:Class Definition:class Decrementer(int): ...

Read More

Python Coding challenge - Day 199 | What is the output of the following Python Code?

 Code:class Incrementer(int):    def __add__(self, other):        return super().__add__(other + 1)i = Incrementer(5)result = i + 3print(result)  Solution and Explanation: let's break it down...

Read More

Python Coding challenge - Day 198 | What is the output of the following Python Code?

 Code:class Quadrupler(int):    def __mul__(self, other):        return super().__mul__(other + 4)q = Quadrupler(5)result = q * 3print(result)Solution and Explanation:let's delve into this code:class Quadrupler(int)::...

Read More

Python Coding challenge - Day 197 | What is the output of the following Python Code?

 Code:class Tripler(int):    def __mul__(self, other):        return super().__mul__(other - 2)t = Tripler(6)result = t * 4print(result)Solution and Explanation:let's break down the code step by step:class...

Read More

Python Coding challenge - Day 196 | What is the output of the following Python Code?

Code:class Doubler(int):    def __mul__(self, other):        return super().__mul__(other + 3)  d = Doubler(3)result = d * 5print(result)Solution and Explanation:This code defines a class named Doubler...

Read More

Python Coding challenge - Day 195 | What is the output of the following Python Code?

 Code: s = 'clcoding'print(s[5:5])Solution and Explanation:Let's break down the code s = 'clcoding' and print(s[5:5]) step by step:s = 'clcoding': This line of code assigns the string 'clcoding' to the variable s.s[5:5]: This is called...

Read More

Python Coding challenge - Day 194 | What is the output of the following Python Code?

 Code: s = 'clcoding'print(s[-6:-1:2])Solution and Explanation:Let's break down the code s = 'clcoding' and print(s[-6:-1:2]) step by step:s = 'clcoding': This line of code assigns the string 'clcoding' to the variable s.s[-6:-1:2]:...

Read More

Data Science: The Hard Parts: Techniques for Excelling at Data Science

 This practical guide provides a collection of techniques and best practices that are generally overlooked in most data engineering and data science pedagogy. A common misconception is that great data scientists are experts in the "big...

Read More

Streamgraphs using Python

 Code:import matplotlib.pyplot as pltimport numpy as npx = np.linspace(0, 10, 100)y1 = np.sin(x)y2 = np.cos(x)plt.stackplot(x, y1, y2, baseline='wiggle')plt.title('Streamgraph')plt.show()Explanation: This code snippet creates a streamgraph...

Read More

Statistical Inference and Probability

 An experienced author in the field of data analytics and statistics, John Macinnes has produced a straight-forward text that breaks down the complex topic of inferential statistics with accessible language and detailed examples. It covers...

Read More

Python Coding challenge - Day 193 | What is the output of the following Python Code?

 Code:class Doubler(int):  def __mul__(self, other):    return super().__mul__(other * 2)  # Create an instance of Doublerd = Doubler(3)# Multiply by another numberresult = d * 5print(result)Solution and Explanation:Let's...

Read More

Python Coding challenge - Day 192 | What is the output of the following Python Code?

 Code:class MyClass:    def __init__(self, x):        self.x = x    def __call__(self, y):        return self.x * yp1 = MyClass(2)print(p1(3))Solution and Explanation:This code...

Read More

Python Coding challenge - Day 191 | What is the output of the following Python Code?

 Code:class MyClass:    def __init__(self, x):        self.x = xp1 = MyClass(1)p2 = MyClass(2)p1.x = p2.xdel p2.xprint(p1.x)Solution with Explanation:let's break down the code step by step:class MyClass::...

Read More

Python Coding challenge - Day 190 | What is the output of the following Python Code?

 Code:class MyClass:    x = 1p1 = MyClass()p2 = MyClass()p1.x = 2print(p2.x)Solution and Explanation:Let's break down the code:class MyClass:    x = 1p1 = MyClass()p2 = MyClass()p1.x = 2print(p2.x)Class Definition (MyClass):Here,...

Read More