Python ImportError无法导入名称

Question

In my working folder I have a file called exceptions.py , which contains only:

class ParseException(Exception):
    pass

class QueryException(Exception):
    pass

In the same folder I have a file, lets call it my_script.py

In my_script.py , when I do from exceptions import ParseException I get an error:

ImportError: cannot import name ParseException

I cannot figure out what's going on here. I've never seen this error before, and when I looked it up I mainly see problems with circular dependencies, but I don't have any here...

Answer 1

There is the exceptions module in your Python library which doesn't have the methods/classes you're trying to import. Change your file name to something different and it'll work.

Try the following yourself

>>> import exceptions 
# Works OK
>>> from exceptions import ParseException
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ImportError: cannot import name ParseException
>>> from exceptions import ImportError # Works OK too