Question

When I import a class MyClass from a file myModule.py from with a myModules dictionary i do it like

from myModules.myModule import MyClass

How to reload this module after I have made changes to the file myModue.py? Here are some mistrials:

reload(MyClass) # TypeError: reload() argument must be module
reload(myModule) # NameError: name 'myModule' is not defined
reload(myModules.myModule)  # NameError: name 'myModules' is not defined

Answer 1

You must have a module to reload. when you use the from foo import bar, unless bar is a module (it looks like it isn’t, in your case) you will have to use another import statement.

from myModules.myModule import myClass
# this will cause myModule.py to be evaluated.  only myClass is in scope

from myModules import myModule
# since myModule has already been imported, myModule.py is not evaluated again. 
# but now myModule is in scope.

reload(myModule)
# this will cause myModule.py to be evaluated again.

If, for some reason, you don’t want two imports, the already imported module can also be found in sys.modules