100daysofpythoncode

Document all the useful links and tips in my python learning journey https://docs.python-guide.org/writing/tests/ -> for pytest

Generalized List Comprehension Structure - https://dbader.org/blog/list-dict-set-comprehensions-in-python

• (values) = [(expression) for (value) in (collection)] values = [] for value in collection: values.append(expression)
• values = [expression for value in collection if condition] values = [] for value in collection: if condition: values.append(expression)

While Loops:

• Single like while loop: while n > 0: n -= 1; print(n) while : statement1 ; statement2

Boiler Plate template for Decorators

More details on decorators can be found in Day22 folder

import functools
def decorator(func): 
@functools.wraps(func)
def wrapper_decorator(*args, **kwargs):
    # Do something before
    value = func(*args, **kwargs)
    # Do something after
    return value
return wrapper_decorator     

 def name(arg_1, ...):
    def decorator_name(func):
        @functools.wraps(func)
        def wrapper_name(*args, **kwargs):
            # Do something before using arg_1, ...
            value = func(*args, **kwargs)
            # Do something after using arg_1, ...
            return value
        return wrapper_name
    return decorator_name

Regular Expressions:

https://docs.python.org/3.7/howto/regex.html#regex-howto cool online tool to test the regex - https://regex101.com/#python