def print_pattern():
num = 1
for i in range(1, 6):
if i % 2 != 0:
print(f"* {num} * {num + 1} *")
num += 2
else:
print(f"{num} * {num + 1} * {num + 2}")
num += 3
print_pattern()
Python Coding March 26, 2024 Python Coding Challenge No comments
def print_pattern():
num = 1
for i in range(1, 6):
if i % 2 != 0:
print(f"* {num} * {num + 1} *")
num += 2
else:
print(f"{num} * {num + 1} * {num + 2}")
num += 3
print_pattern()
Python Coding March 26, 2024 Python Coding Challenge No comments
def gen_tri(size):
for i in range(0, size//2 + 1):
yield ' ' * i + '*' * (size - 2*i) + ' ' * i
def print_heart(size):
size = 2*size + 1
for i in reversed(list(gen_tri(size//2))):
print(i, i)
for i in gen_tri(size):
print(i)
print_heart(4)
Python Coding March 26, 2024 Python No comments
Installing Python modules without using pip can be done manually by downloading the module's source code or distribution package and then installing it using Python's setup tools. Here's a basic guide on how to do it:
Download the module: Go to the official website or repository of the module you want to install and download the source code or distribution package (usually in a .tar.gz or .zip format).
Extract the package: Extract the downloaded package to a directory on your computer.
Navigate to the package directory: Open a terminal or command prompt and navigate to the directory where you extracted the package.
Install the module: Run the following command to install the module using Python's setup tools:
python setup.py install
If you have multiple versions of Python installed, you may need to specify the Python version explicitly, for example:
python3 setup.py install
This command will compile and install the module into your Python environment.
Verify installation: After installation, you can verify if the module is installed correctly by trying to import it in a Python script or interpreter.
Keep in mind that installing modules manually without pip may require additional dependencies and manual handling of version compatibility. It's generally recommended to use pip whenever possible, as it handles dependency resolution and installation automatically. However, manual installation can be useful in cases where pip is not available or suitable for some reason.
Python Coding March 26, 2024 Python Coding Challenge No comments
This code defines a function foo that takes a single argument x. The argument x is initialized with a default value of an empty list [].
def foo(x=[]):
x.append(1)
return x
Here's what happens when you call foo() multiple times:
First Call (print(foo())):
foo() is called without any argument, so x defaults to an empty list [].
Inside the function, 1 is appended to the list x, modifying it to [1].
The modified list [1] is returned and printed.
Second Call (print(foo())):
Since the default argument x retains its value between calls, it still holds the modified list [1] from the previous call.
1 is appended to the existing list x, resulting in [1, 1].
The modified list [1, 1] is returned and printed.
Third Call (print(foo())):
Similar to the second call, the default argument x still holds the modified list [1, 1].
Another 1 is appended to the list x, making it [1, 1, 1].
The modified list [1, 1, 1] is returned and printed.
So, the output of the three function calls will be:
[1]
[1, 1]
[1, 1, 1]
It's important to note that the default argument x=[] is evaluated only once when the function foo is defined. This means that every time you call foo() without passing an argument explicitly, the same list object (which was created when the function was defined) is used. This can lead to unexpected behavior if you're not careful, especially when dealing with mutable default arguments like lists or dictionaries.
Python Coding March 25, 2024 Python Coding Challenge No comments
This Python code demonstrates the use of the map() function. Let's break it down step by step:
def foo(x): - This line defines a function named foo that takes a single argument x.
return x + 1 - Inside the foo function, it simply returns the value of x incremented by 1.
result = map(foo, [1, 2, 3, 4]) - Here, the map() function is used. It takes two arguments: a function (foo in this case) and an iterable ([1, 2, 3, 4] in this case). What map() does is it applies the function (foo) to each item in the iterable ([1, 2, 3, 4]), producing a new iterable containing the results. So, map(foo, [1, 2, 3, 4]) will apply foo to each element of the list [1, 2, 3, 4], resulting in [2, 3, 4, 5].
print(list(result)) - The map() function returns an iterator, so we need to convert it into a list to see the results. This line converts the result iterator into a list and prints it. The output will be [2, 3, 4, 5], which are the values obtained by applying the foo function to each element in the list [1, 2, 3, 4], incrementing each by 1.
Python Coding March 25, 2024 Python Coding Challenge No comments
a=[]
for i in range(7):
a.append([])
for j in range(7):
if i==0 or i==6 or i+j==6 or i==j:
a[i].append("*")
else:
a[i].append(" ")
for i in range(7):
print(*a[i])
Explanation:
Let's break down the code step by step:
a = []: This line initializes an empty list named a. This list will eventually hold the elements of the 2D array or matrix.
The outer loop: for i in range(7):
This loop iterates over values from 0 to 6 (inclusive).
For each value of i, a new empty list is appended to the list a. This effectively initializes a new row in the matrix.
The inner loop: for j in range(7):
This loop iterates over values from 0 to 6 (inclusive), representing columns within each row.
For each cell in the matrix (each combination of i and j), the following condition is checked:
The if condition:
If i is 0 or 6 (first or last row), or if the sum of i and j equals 6 (indicating the anti-diagonal), or if i equals j (indicating the main diagonal), then a star (*) is appended to the current row (a[i]). Otherwise, a space is appended.
After completing the inner loop for each i, a contains a 2D list representing a matrix where stars (*) are placed along the main diagonal, anti-diagonal, and the first and last rows.
The final loop: for i in range(7):
This loop iterates over the rows of the matrix.
For each row, the print(*a[i]) statement prints the elements of that row separated by spaces.
Overall, this code generates a 7x7 matrix filled with spaces and stars according to the conditions specified, and then prints the matrix row by row.
Python Coding March 24, 2024 Python No comments
from colorama import Fore
import pyfiglet
font = pyfiglet.figlet_format('Happy Holi')
print(Fore.MAGENTA+font)
#clcoding.com
import pyfiglet
from termcolor import colored
def wish_happy_holi():
# Happy Holi message using pyfiglet and termcolor
holi_message = pyfiglet.figlet_format("Happy Holi!")
colored_message = colored(holi_message, color='red')
print(colored_message)
wish_happy_holi()
Python Coding March 24, 2024 Python Coding Challenge No comments
# Function to print swastika
def swastika(row,col):
for i in range(row):
for j in range(col):
# checking if i < row/2
if(i < row // 2):
# checking if j<col/2
if (j < col // 2):
# print '*' if j=0
if (j == 0):
print("*", end = "")
# else print space
else:
print(" ", end = " ")
# check if j=col/2
elif (j == col // 2):
print(" *", end = "")
else:
# if i=0 then first row will have '*'
if (i == 0):
print(" *", end = "")
elif (i == row // 2):
print("* ", end = "")
else:
# middle column and last column will
# have '*' after i > row/2
if (j == col // 2 or j == col - 1):
print("* ", end = "")
# last row
elif (i == row - 1):
# last row will be have '*' if
# j <= col/2 or if it is last column
if (j <= col // 2 or j == col - 1):
print("* ", end = "")
else:
print(" ", end = " ")
else:
print(" ", end = " ")
print()
# Driver code
# odd number of row and column
# to get perfect swastika
row = 7; col = 7
# Function calling
swastika(row, col)
#clcoding.com
* * * * * * * * * * * * * * * * * * * * * * * * *
Python Coding March 24, 2024 Python Coding Challenge No comments
def outer_function(x):
def inner_function(y):
return x + y
return inner_function
result = outer_function(5)(3)
print(result)
This code defines a Python function outer_function that takes a parameter x. Inside outer_function, there's another function defined called inner_function, which takes a parameter y.
inner_function simply returns the sum of x and y.
outer_function itself returns inner_function, effectively creating a closure where inner_function retains access to the x value passed to outer_function.
The last three lines of the code demonstrate how to use this function.
outer_function(5) is called, which returns inner_function where x is now set to 5.
Then, (3) is passed to this returned inner_function, effectively adding 3 to the x value set previously (5), resulting in 8.
Finally, the result, 8, is printed.
So, the output of this code would be: 8
Python Coding March 23, 2024 Python No comments
Python Coding March 23, 2024 Books, Python No comments
Python Coding March 23, 2024 Python Coding Challenge No comments
def func(x, y=5, z=10):
return x + y + z
result = func(3, z=7)
print(result)
This Python code defines a function called func with three parameters: x, y, and z. The parameters y and z have default values of 5 and 10 respectively.
Here's the breakdown:
x is a positional argument.
y is a keyword argument with a default value of 5.
z is also a keyword argument with a default value of 10.
When the function func is called with func(3, z=7), it assigns 3 to x (as a positional argument), and 7 to z (as a keyword argument), while leaving y to its default value of 5.
So the function call func(3, z=7) effectively calculates 3 + 5 + 7, which equals 15.
Then, the value 15 is assigned to the variable result.
Finally, print(result) prints the value of result, which is 15. So, when you run this code, it will print 15 to the console.
Python Coding March 22, 2024 Python No comments
import qrcode
from PIL import Image
# Generate QR code for a URL
url = "https://www.clcoding.com"
qr = qrcode.QRCode(version=1, error_correction=qrcode.constants.ERROR_CORRECT_L, box_size=8, border=5)
qr.add_data(url)
qr.make(fit=True)
# Create an image with logo
image = qr.make_image(fill_color="black", back_color="pink")
# Add logo to the QR code
logo = Image.open("clcodinglogo.png")
logo_size = img.size[0] // 4
# Use Image.LANCZOS for resizing with anti-aliasing
logo = logo.resize((logo_size, logo_size), Image.LANCZOS)
image.paste(logo, ((img.size[0] - logo.size[0]) // 2, (img.size[1] - logo.size[1]) // 2))
# Save the image
image.save("qr_code.png")
Image.open("qr_code.png")
Python Coding March 22, 2024 Python Coding Challenge No comments
def print_pattern():
for i in range(5, 0, -1):
for j in range(i, 0, -1):
print(chr(64 + j), end="")
print()
print_pattern()
Python Coding March 21, 2024 Python Coding Challenge No comments
def outer():
x = 10
def inner():
nonlocal x
x += 5
print("Inner:", x)
inner()
print("Outer:", x)
outer()
This code demonstrates nested functions in Python, along with the use of the nonlocal keyword.
Here's a breakdown of what each part does:
def outer():: This line defines a function named outer.
x = 10: Inside the outer function, a variable x is initialized with the value 10.
def inner():: Inside the outer function, another function named inner is defined.
nonlocal x: This statement inside the inner function tells Python that the variable x being referenced is not local to the inner function but belongs to the enclosing scope (which is the outer function in this case).
x += 5: Inside the inner function, x is incremented by 5.
print("Inner:", x): This line prints the value of x from the inner function after it has been incremented.
inner(): This line calls the inner function from within the outer function.
print("Outer:", x): After the inner function call, the value of x within the outer function is printed. Since x was modified within the inner function using the nonlocal keyword, its value will reflect the increment done inside the inner function.
outer(): Finally, the outer function is called, which executes the code inside it and its nested inner function.
When you run outer(), it will print:
Inner: 15
Outer: 15
This output shows that the inner function has successfully modified the value of x, and the change is reflected in the outer function as well.
Python Coding March 21, 2024 Python Coding Challenge No comments
n = 7
d = n // 2 + 1
for x in range(1, n + 1):
for y in range(1, n + 1):
if x == n // 2 + 1 or y == d:
print("*", end="")
else:
print(" ", end="")
if x <= n // 2:
d += 1
else:
d -= 1
print()
Python Coding March 20, 2024 Python Coding Challenge No comments
def some_func(a, b, c=0, d=1):
return a + b + c + d
result = some_func(1, 2, d=4)
print(result)
This code defines a function named some_func which takes four parameters: a, b, c, and d. Parameters c and d have default values of 0 and 1 respectively. The function calculates the sum of all four parameters and returns the result.
Here's the breakdown of the function:
a, b, c, and d are parameters representing values that can be passed into the function.
c=0 and d=1 in the function signature are default parameter values. This means if you call the function without providing values for c and d, they will default to 0 and 1 respectively.
Inside the function, it calculates the sum of a, b, c, and d and returns the result.
Now, when the function is called with some_func(1, 2, d=4), the values passed are a=1, b=2, c is not specified (so it takes the default value of 0), and d=4. Therefore, the function computes 1 + 2 + 0 + 4, which equals 7.
Finally, the result, which is 7, is printed using print(result).
Python Coding March 19, 2024 Python Coding Challenge No comments
def foo(x, y=[]):
y.append(x)
return y
print(foo(1))
print(foo(2))
This code defines a function foo that takes two arguments x and y, with y having a default value of an empty list []. Let's break down what happens:
def foo(x, y=[]):: This line defines a function named foo with two parameters, x and y. If y is not provided when calling the function, it defaults to an empty list [].
y.append(x): This line appends the value of x to the list y. Since y is a mutable object and is provided as a default argument, it retains its state across multiple calls to the function.
return y: This line returns the modified list y.
print(foo(1)): This line calls the foo function with x equal to 1. Since y is not provided explicitly, it defaults to [], which becomes [1] after appending 1 to it. So, it prints [1].
print(foo(2)): This line calls the foo function again, this time with x equal to 2. The default value of y is [1] now (the list modified in the previous call). So, 2 is appended to the existing list, resulting in [1, 2]. It prints [1, 2].
However, there's a caveat with this code due to the default mutable argument y=[]. If you call the function foo without providing a value for y, it'll reuse the same list across multiple function calls. This can lead to unexpected behavior if you're not careful. In this case, each time foo is called without specifying y, it keeps appending to the same list object. So, calling foo(1) modifies the list y to [1], and then calling foo(2) appends 2 to the modified list, resulting in [1, 2].
Python Coding March 19, 2024 Python Coding Challenge No comments
def print_sequence_loop(n):
for i in range(n+1):
print(f"{i}{'*' * i}")
def print_sequence_list_comprehension(n):
sequence = [f"{i}{'*' * i}" for i in range(n+1)]
print('\n'.join(sequence))
def generate_sequence(n):
for i in range(n+1):
yield f"{i}{'*' * i}"
def print_sequence_generator(n):
sequence = generate_sequence(n)
for item in sequence:
print(item)
# Testing the functions
n = 5
print("Using loop:")
print_sequence_loop(n)
print("\nUsing list comprehension:")
print_sequence_list_comprehension(n)
print("\nUsing generator function:")
print_sequence_generator(n)
Python Coding March 19, 2024 Python No comments
import statistics
data = [1, 2, 3, 4, 5]
mean = statistics.mean(data)
print("Mean:", mean)
#clcoding.com
Mean: 3
import statistics
data = [1, 2, 3, 4, 5]
median = statistics.median(data)
print("Median:", median)
#clcoding.com
Median: 3
import statistics
data = [1, 2, 2, 3, 4, 4, 4, 5]
mode = statistics.mode(data)
print("Mode:", mode)
#clcoding.com
Mode: 4
import statistics
data = [1, 2, 3, 4, 5]
variance = statistics.variance(data)
print("Variance:", variance)
#clcoding.com
Variance: 2.5
import statistics
data = [1, 2, 3, 4, 5]
std_dev = statistics.stdev(data)
print("Standard Deviation:", std_dev)
#clcoding.com
Standard Deviation: 1.5811388300841898
import statistics
data = [1, 2, 3, 4, 5]
q1 = statistics.quantiles(data, n=4)[0]
q3 = statistics.quantiles(data, n=4)[-1]
print("First Quartile (Q1):", q1)
print("Third Quartile (Q3):", q3)
#clcoding.com
First Quartile (Q1): 1.5
Third Quartile (Q3): 4.5
import statistics
data1 = [1, 2, 3, 4, 5]
data2 = [2, 4, 6, 8, 10]
corr_coeff = statistics.correlation(data1, data2)
print("Correlation Coefficient:", corr_coeff)
#clcoding.com
Correlation Coefficient: 1.0
Python Coding March 18, 2024 Python Coding Challenge No comments
Python Coding March 18, 2024 Python No comments
Python Coding March 17, 2024 Python Coding Challenge No comments
Let's break down the code:
s = 'clcoding'
index = s.find('n', -1)
print(index)
s = 'clcoding': This line initializes a variable s with the string 'clcoding'.
index = s.find('n', -1): This line uses the find() method on the string s. The find() method searches for the specified substring within the given string. It takes two parameters: the substring to search for and an optional parameter for the starting index. If the starting index is negative, it counts from the end of the string.
In this case, 'n' is the substring being searched for.
The starting index -1 indicates that the search should start from the end of the string.
Since the substring 'n' is not found in the string 'clcoding', the method returns -1.
print(index): This line prints the value stored in the variable index, which is the result of the find() method. In this case, it will print -1, indicating that the substring 'n' was not found in the string 'clcoding'.
So, the overall output of this code will be -1.
Python Coding March 16, 2024 Python Coding Challenge No comments
Let's break down each line:
my_tuple = (1, 2, 3): This line creates a tuple named my_tuple containing three elements: 1, 2, and 3.
x, y, z, *rest = my_tuple: This line uses tuple unpacking to assign values from my_tuple to variables x, y, z, and rest. The *rest syntax is used to gather any extra elements into a list called rest.
x is assigned the first element of my_tuple, which is 1.
y is assigned the second element of my_tuple, which is 2.
z is assigned the third element of my_tuple, which is 3.
*rest gathers any remaining elements of my_tuple (if any) into a list named rest. In this case, there are no remaining elements, so rest will be an empty list.
print(x, y, z, rest): This line prints the values of x, y, z, and rest.
x, y, and z are the values assigned earlier, which are 1, 2, and 3 respectively.
rest is an empty list since there are no remaining elements in my_tuple.
Therefore, when you run this code, it will output:
1 2 3 []
Python Coding March 16, 2024 Python Coding Challenge No comments
Q:- What is Operator ?
Operators are symbol or special characters that perform specific
operations on one or more operands (Values or Variables).
Assignment Question
1. Write a program that prompts the user to enter their name, age, and
favorite number. Calculate and print the product of their age and
favorite number.
2. Write a program that prompts the user for enter a sentence and then
check the length of the sentence and prints the sentence also.
3. Write a program that takes two sentences from user and then checks for
the length of both sentences using “Identity Operators”.
4. Write a program that takes a integer value from the user and checks that
the number is between 10 and 20 then it will print true or else false , use
Logical and & or operator both for checking the result.
5. Write the uses of all the operators which comes inside these operators
use comments in python for writing the uses :-
Arithmetic operators
Assignment operators
Comparison operators
Logical operators
Identity operators
Python Coding March 16, 2024 Python Coding Challenge No comments
1. What is coding?
->Coding refers to the process of creating instructions for a computer to
perform specific tasks. It involves writing lines of code using a programming
language that follows a defined syntax and set of rules.
Coding can be used to create software applications, websites, algorithms, and
much more. It is a fundamental skill in the field of computer science and in
essential for anyone interested in software development, data analysis,
machine learning, and various other technological domains.
2. What is algorithm?
->An algorithm is a set of clear and specific instructions that guide the
computer to solve a problem or complete a task efficiently and accurately. It’s
like a recipe that tells the computer exactly what do to achieve a desired
outcome.
3. Who created Python?
-> Python was created by Guido van Rossum. He started developing Python in
the late 1980s, and the first version of the programming language was released
in 1991.
4. What is Python?
->Python is a popular and easy to learn programming language. It is known for
it’s simplicity and readability, making it a great choice for beginners. Python is
versatile and can be used for a wide range of tasks, from web development to
data analysis and artificial intelligence. It’s clear syntax and extensive library
support make it efficient and productive for software development. Overall,
Python is a powerful yet user-friendly language that is widely used in the tech
industry.
Assignment Questions
1. Declare two variables, x and y, and assign them the values 5
and 3, respectively. Calculate their sum and print the result.
2. Declare a variable radius and assign it a value of 7. Calculate the
area of a circle with that radius and print the result.
3. Declare a variable temperature and assign it a value of 25.
Convert the temperature from Celsius to Fahrenheit and print the
result.
4. Declare three variables a, b, and c and assign them the values
10, 3.5, and 2, respectively. Calculate the result of a divided by the
product of b and c and print the result.
5. Declare a variable initial_amount and assign it a value of 1000.
Calculate the compound interest after one year with an interest rate
of 5% and print the result.
6. Declare a variable seconds and assign it a value of 86400.
Convert the seconds into hours, minutes, and seconds, and print the
result in the format: "hh:mm:ss".
7. Declare a variable numerator and assign it a value of 27.
Declare another variable denominator and assign it a value of 4.
Calculate the integer division and remainder of numerator divided by
denominator and print both results.
8. Declare a variable length and assign it a value of 10. Calculate
the perimeter and area of a square with that length and print the
results.
Python Coding March 15, 2024 Python No comments
The json library in Python
import json
# Python dictionary to be encoded to JSON
data = {
"name": "John",
"age": 30,
"city": "New York"
}
# Encode the Python dictionary to JSON
json_data = json.dumps(data)
print("Encoded JSON:", json_data)
#clcoding.com
Encoded JSON: {"name": "John", "age": 30, "city": "New York"}
import json
# JSON data to be decoded to Python
json_data = '{"name": "John", "age": 30, "city": "New York"}'
# Decode the JSON data to a Python dictionary
data = json.loads(json_data)
print("Decoded Python Data:", data)
#clcoding.com
Decoded Python Data: {'name': 'John', 'age': 30, 'city': 'New York'}
clcoding
import json
# Read JSON data from a file
with open('clcoding.json', 'r') as file:
data = json.load(file)
print("JSON Data from File:", data)
#clcoding.com
JSON Data from File: {'We are supporting freely to everyone. Join us for live support. \n\nWhatApp Support: wa.me/919767292502\n\nInstagram Support : https://www.instagram.com/pythonclcoding/\n\nFree program: https://www.clcoding.com/\n\nFree Codes: https://clcoding.quora.com/\n\nFree Support: pythonclcoding@gmail.com\n\nLive Support: https://t.me/pythonclcoding\n\nLike us: https://www.facebook.com/pythonclcoding\n\nJoin us: https://www.facebook.com/groups/pythonclcoding': None}
import json
# Python dictionary to be written to a JSON file
data = {
"name": "John",
"age": 30,
"city": "New York"
}
# Write the Python dictionary to a JSON file
with open('output.json', 'w') as file:
json.dump(data, file)
#clcoding.com
import json
# JSON data with syntax error
json_data = '{"name": "John", "age": 30, "city": "New York"'
try:
# Attempt to decode JSON data
data = json.loads(json_data)
except json.JSONDecodeError as e:
# Handle JSON decoding error
print("Error decoding JSON:", e)
#clcoding.com
Error decoding JSON: Expecting ',' delimiter: line 1 column 47 (char 46)
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