What does reload() function do in Python?

The function reload(moduleName) reloads a previously loaded module (assuming you loaded it with the syntax "import moduleName". It is intended for conversational use, where you have edited the source file for a module and want to test it without leaving Python and starting it again. For example,

>>> import mymodule
>>> # Edited mymodule and want to reload it in this script
>>> reload(mymodule)

Note that the moduleName is the actual name of the module, not a string containing its name. In Python 3, reload was moved from builtins to imp. So to use reload in Python 3, you'd have to write imp.reload(moduleName) and not just reload(moduleName).

Rajendra Dharmkar

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Updated on: 30-Sep-2019

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