Python Basics
Course

help()

Lesson 1 Chapter 1

Python’s built-in help() function launches Python’s help system. Without an argument, help() starts an interactive session. With a string argument, help(name) looks up the name and prints a help page to the shell. With a non-string argument, help(object) prints a help page on object. 
>>> help(list)             # Prints the documentation of list
>>> help(dict)             # Prints the documentation of dict
>>> help(int)              # Prints the documentation of int
>>> help('help')           # Prints the documentation of help()
>>> help()                 # Opens an interactive "help" session

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