[python] Why does this AttributeError in python occur?

The default namespace in Python is "__main__". When you use import scipy, Python creates a separate namespace as your module name. The rule in Pyhton is: when you want to call an attribute from another namespaces you have to use the fully qualified attribute name.

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Why Python 3.6.1 throws AttributeError: module 'enum' has no attribute 'IntFlag'? Beginner Python: AttributeError: 'list' object has no attribute AttributeError: 'str' object has no attribute AttributeError: 'DataFrame' object has no attribute AttributeError: 'module' object has no attribute 'urlretrieve' "import datetime" v.s. "from datetime import datetime" Python: instance has no attribute AttributeError("'str' object has no attribute 'read'") Why do I get AttributeError: 'NoneType' object has no attribute 'something'? Why does this AttributeError in python occur?