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What is the use of help() and dir() functions?

Answer»

help() function in PYTHON is used to display the documentation of modules, classes, functions, keywords, etc. If no parameter is PASSED to the help() function, then an interactive help utility is launched on the console.
dir() function tries to return a valid LIST of attributes and methods of the object it is called upon. It behaves differently with different objects, as it aims to produce the most relevant data, rather than the complete information.

  • For Modules/Library objects, it returns a list of all attributes, CONTAINED in that module.
  • For CLASS Objects, it returns a list of all valid attributes and base attributes.
  • With no arguments passed, it returns a list of attributes in the current scope.


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