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Pydoc tool
When you want read the document of modules or packages you can use Pydoc in this way
terminal
pydoc3 math
Ouput
Help on module math:NAMEmathMODULE REFERENCEhttps://docs.python.org/3.7/library/mathThe following documentation is automatically generated from the Pythonsource files. It may be incomplete, incorrect or include features thatare considered implementation detail and may vary between Pythonimplementations. When in doubt, consult the module reference at thelocation listed above.DESCRIPTIONThis module provides access to the mathematical functionsdefined by the C standard.FUNCTIONSacos(x, /)Return the arc cosine (measured in radians) of x.acosh(x, /):
Pydoc has interest feature that you can run localhost server and read the all of the packages documents in the browser
terminal
pydoc3 -p 1234
