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Python help() Function

Python help() Function

Python help() function is used to display the documentation of modules, functions, classes, keywords etc. related to the object passed during the call. It takes only an optional parameter and returns help information. If it is passed without argument then it shows the Python help console.

Syntax:
help(object)  

Parameter Values

Parameter Description
object: This parameter defines an object for which we wan to get help.
Here is an example of Python help() function:

help()

Output:
Welcome to Python 3.7's help utility!

If this is your first time using Python, you should definitely check out the tutorial on the Internet at https://docs.python.org/3.7/tutorial/.

Enter the name of any module, keyword, or topic to get help on writing Python programs and using Python modules. To quit this help utility and return to the interpreter, just type "quit".

To get a list of available modules, keywords, symbols, or topics, type "modules", "keywords", "symbols", or "topics". Each module also comes with a one-line summary of what it does; to list the modules whose name or summary contain a given string such as "spam", type "modules spam".

help>
You are now leaving help and returning to the Python interpreter. If you want to ask for help on a particular object directly from the interpreter, you can type "help(object)". Executing "help('string')" has the same effect as typing a particular string at the help> prompt.
Example 2:

help(print)

Output:
Help on built-in function print in module builtins:

print(...)
print(value, ..., sep=' ', end='\n', file=sys.stdout, flush=False)
Prints the values to a stream, or to sys.stdout by default.
Optional keyword arguments:
file: a file-like object (stream); defaults to the current sys.stdout.
sep: string inserted between values, default a space.
end: string appended after the last value, default a newline.
flush: whether to forcibly flush the stream.

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