ImportError: cannot import name 'IntEnum'

问题

I am trying to install upstox, which is a Python API for connecting to market data. I am unable to install it on Python3.5.

My config is Python 3.5.3 (v3.5.3:1880cb95a742, Jan 16 2017, 15:51:26) [MSC v.1900 32 bit (Intel)] on win32. And the error I keep getting is:

Collecting upstox
  Using cached upstox-0.7-py2.py3-none-any.whl
Collecting future (from upstox)
  Using cached future-0.16.0.tar.gz
Collecting websocket-client (from upstox)
  Using cached websocket_client-0.42.1-py2.py3-none-any.whl
Collecting pycurl (from upstox)
  Using cached pycurl-7.43.0-cp35-none-win32.whl
Collecting enum (from upstox)
  Using cached enum-0.4.6.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "C:\Users\UserPad\AppData\Local\Programs\Python\Python35-32\lib\site-packages\setuptools\__init__.py", line 10, in <module>
        from setuptools.extern.six.moves import filter, filterfalse, map
      File "C:\Users\UserPad\AppData\Local\Programs\Python\Python35-32\lib\site-packages\setuptools\extern\__init__.py", line 1, in <module>
        from pkg_resources.extern import VendorImporter
      File "C:\Users\UserPad\AppData\Local\Programs\Python\Python35-32\lib\site-packages\pkg_resources\__init__.py", line 33, in <module>
        import platform
      File "C:\Users\UserPad\AppData\Local\Programs\Python\Python35-32\lib\platform.py", line 117, in <module>
        import sys, os, re, subprocess
      File "C:\Users\UserPad\AppData\Local\Programs\Python\Python35-32\lib\subprocess.py", line 50, in <module>
        import signal
      File "C:\Users\UserPad\AppData\Local\Programs\Python\Python35-32\lib\signal.py", line 4, in <module>
        from enum import IntEnum as _IntEnum
    ImportError: cannot import name 'IntEnum'

    ----------------------------------------

Command "python setup.py egg_info" failed with error code 1 in C:\Users\UserPad\AppData\Local\Temp\pycharm-packaging\enum\

回答1:

pip install enum34 

will solve the issue

回答2:

for python2

sudo pip2 install -U enum

for python3

sudo pip3 install -U enum34

回答3:

import enum import Enum
import enum import IntNum

from enum import Enum
from enum import IntEnum

class Shape (IntEnum):
    CIRCLE = 1
    SQUARE = 2


class Color (Enum):
    RED = 1
    GREEN = 2


print(Shape.CIRCLE == Color.RED)
print (Shape.CIRCLE == 1)

回答4:

Have you installed enum before installing your desired package? It looks like it wants you to install it first.

Run this command in CMD to install enum, and then try installing your desired package:

pip install enum

来源：https://stackoverflow.com/questions/44666136/importerror-cannot-import-name-intenum