Some python tips for life

Python 3

Taking python course from github learning lab made me remember some things or learn brand new others. Check it out!

Table of Contents

Initializing the main function

Files .py are modules, and when imported they are executed within the main program. To identify the difference between main program and imported modules we use the special variable __name__. __name__ tells us the name of our running module. So, to single programs __name__ = __main__ (MAIN SCOPE), and imported modules __name__ = the name of the module.

if __name__ == "__main__":
    function_name()

Reading files

Do you want to read lines from a .txt file? Having the file.txt just:

    f = open("file.txt")
    file = f.readlines()
    f.close() # closes the reading file

Appending on lists

List is a mutable chain of elements like pizza = ['nice', 'cold']. To append more elements :

    pizza.append('hot')