无法导入GCP VM实例上的模块

Question

我是google云平台的新手:我已经在VM实例上通过pip安装了python mip模块。但是，当我尝试导入模块时，我得到了以下错误：

import mip
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/yl4536/anaconda3/lib/python3.5/site-packages/mip/__init__.py", line 2, in <module>
    from mip.solver import Solver
  File "/home/yl4536/anaconda3/lib/python3.5/site-packages/mip/solver.py", line 9, in <module>
    class Solver:
  File "/home/yl4536/anaconda3/lib/python3.5/site-packages/mip/solver.py", line 292, in Solver
    e1: Union["mip.LinExpr", "mip.Var"],
  File "/home/yl4536/anaconda3/lib/python3.5/typing.py", line 537, in __getitem__
    dict(self.__dict__), parameters, _root=True)
  File "/home/yl4536/anaconda3/lib/python3.5/typing.py", line 494, in __new__
    for t2 in all_params - {t1} if not isinstance(t2, TypeVar)):
  File "/home/yl4536/anaconda3/lib/python3.5/typing.py", line 494, in <genexpr>
    for t2 in all_params - {t1} if not isinstance(t2, TypeVar)):
  File "/home/yl4536/anaconda3/lib/python3.5/typing.py", line 185, in __subclasscheck__
    self._eval_type(globalns, localns)
  File "/home/yl4536/anaconda3/lib/python3.5/typing.py", line 172, in _eval_type
    eval(self.__forward_code__, globalns, localns),
  File "<string>", line 1, in <module>
AttributeError: module 'mip' has no attribute 'Var'

我已经成功地在本地计算机和google colab上导入了该模块。如果有人能给我一些方向，我应该调查一下，以便解决这个问题，我将非常感激。

提前谢谢你！

Answer 1

为了解决这个问题，我按照这个doc在GCP (Ubuntu)实例上安装了它。

1- pip安装mip

2- /usr/bin/python3 3 -m pip安装--升级pip