Python: 'module' object is not callable

问题

I have an exception class defined

#####UNIQUE CONSTRAINT EXCEPTION#########################################################3
class UniqueConstraintException (Exception):
    def __init__(self, value):
        self.value = value

    def __str__(self):
        return repr('Failed unique property. Property name: ' + self.value)

The file name is: "UniqueConstraintException.py" and package name: "exception"

I'm importing and using it in this way:

from exception import UniqueConstraintException

raise UniqueConstraintException(prop_key)

And get this error:

TypeError: 'module' object is not callable

What am i doing wrong?

回答1:

This is why you want to keep your module names lower-cased. :-)

from exception.UniqueConstraintException import UniqueConstraintException

You imported the module, no the class defined inside of the module.

来源：https://stackoverflow.com/questions/12094613/python-module-object-is-not-callable