Linters article examples: https://semakin.dev/2020/05/python_linters/

bad_code.py

from math import *
import itertools

def  CalculateSquareRoot (Number ):
	return  sqrt(Number )

def append_item(item, l=[]):
    l.append(item)
    return l

while True:
    try:
        your_number=float(input('Enter your number: '))
        print("Square root is:", CalculateSquareRoot(your_number)) 
        break  
    except:
        pass

not_so_bad_code.py

from math import sqrt


def calculate_square_root(number):
    return sqrt(number)


def append_item(item, l=None):  # noqa: E741
    if l is None:
        l = []  # noqa
    l.append(item)
    return l


while True:
    try:
        your_number = float(input('Enter your number: '))
        print("Square root is:", calculate_square_root(your_number))
        break
    except Exception:
        pass