How to get class object from class name string in the same module?

import sys
getattr(sys.modules[__name__], "Foo")

# or 

globals()['Foo']

You can do it with help of the sys module:

import sys

def str2Class(str):
    return getattr(sys.modules[__name__], str)

globals()[class_name]

Note that if this isn't strictly necessary, you may want to refactor your code to not use it.