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python - Python 3.7 不能使用 DOCPLEX

问题描述

我编写了一个数学模型并想使用 DOCPLEX 模块来解决它。我的解释器是 Python 3.7。但是，在做了很多努力之后，我将面临以下错误：

Traceback (most recent call last):
  File "C:\Users\xxx\PycharmProjects\pythonProject\venv\lib\site-packages\docplex\mp\environment.py", line 290, in get_cplex_module
    import cplex  #@UnresolvedImport
  File "C:\Program Files\IBM\ILOG\CPLEX_Studio201\cplex\python\3.8\x64_win64\cplex\__init__.py", line 44, in <module>
    from .aborter import Aborter
  File "C:\Program Files\IBM\ILOG\CPLEX_Studio201\cplex\python\3.8\x64_win64\cplex\aborter.py", line 13, in <module>
    from ._internal import _procedural as _proc
  File "C:\Program Files\IBM\ILOG\CPLEX_Studio201\cplex\python\3.8\x64_win64\cplex\_internal\__init__.py", line 20, in <module>
    from . import _list_array_utils
  File "C:\Program Files\IBM\ILOG\CPLEX_Studio201\cplex\python\3.8\x64_win64\cplex\_internal\_list_array_utils.py", line 14, in <module>
    from . import _pycplex as CPX
  File "C:\Program Files\IBM\ILOG\CPLEX_Studio201\cplex\python\3.8\x64_win64\cplex\_internal\_pycplex.py", line 13, in <module>
    from . import _pycplex_platform
  File "C:\Program Files\IBM\ILOG\CPLEX_Studio201\cplex\python\3.8\x64_win64\cplex\_internal\_pycplex_platform.py", line 22, in <module>
    from cplex._internal.py37_cplex2010 import *
ModuleNotFoundError: No module named 'cplex._internal.py37_cplex2010'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:/Users/xxx/PycharmProjects/pythonProject/EPC _LTC.py", line 11, in <module>
    mdl = Model("LTC")
  File "C:\Users\xxx\PycharmProjects\pythonProject\venv\lib\site-packages\docplex\mp\model.py", line 398, in __init__
    self._environment = self._make_environment()
  File "C:\Users\xxx\PycharmProjects\pythonProject\venv\lib\site-packages\docplex\mp\model.py", line 174, in _make_environment
    env = Environment.get_default_env()
  File "C:\Users\xxx\PycharmProjects\pythonProject\venv\lib\site-packages\docplex\mp\environment.py", line 427, in get_default_env
    Environment._default_env = Environment.make_new_configured_env()
  File "C:\Users\xxx\PycharmProjects\pythonProject\venv\lib\site-packages\docplex\mp\environment.py", line 422, in make_new_configured_env
    return Environment(start_auto_configure=True)
  File "C:\Users\xxx\PycharmProjects\pythonProject\venv\lib\site-packages\docplex\mp\environment.py", line 84, in __init__
    self.auto_configure(logger=logger)
  File "C:\Users\xxx\PycharmProjects\pythonProject\venv\lib\site-packages\docplex\mp\environment.py", line 220, in auto_configure
    self.check_cplex(logger=logger)
  File "C:\Users\xxx\PycharmProjects\pythonProject\venv\lib\site-packages\docplex\mp\environment.py", line 328, in check_cplex
    cplex = self.get_cplex_module(logger=logger)
  File "C:\Users\xxx\PycharmProjects\pythonProject\venv\lib\site-packages\docplex\mp\environment.py", line 314, in get_cplex_module
    cplex = load_cplex_from_cos_root(loc) if loc else None
  File "C:\Users\xxx\PycharmProjects\pythonProject\venv\lib\site-packages\docplex\mp\environment.py", line 286, in load_cplex_from_cos_root
    return load_cplex(full_path, version=version)
  File "C:\Users\xxx\PycharmProjects\pythonProject\venv\lib\site-packages\docplex\mp\environment.py", line 261, in load_cplex
    raise FileNotFoundError("Could not load module from %s" % module_location)
FileNotFoundError: Could not load module from C:\Program Files\IBM\ILOG\CPLEX_Studio201;C:\Program Files\IBM\ILOG\CPLEX_Studio201\cplex\python\3.7\x64_win64;C:\Program Files\IBM\ILOG\CPLEX_Studio201\cplex\python\3.7\x64_win64\cplex;\cplex\python\3.7\x64_win64\cplex\__init__.py

我已经在 Pycharm 的终端中运行了以下代码：

cd C:\Program Files\IBM\ILOG\CPLEX_Studio201\python
python setup.py install

或者

cd C:\Program Files\IBM\ILOG\CPLEX_Studio201\python
python setup.py install --home C:\Users\xxx\PycharmProjects\pythonProject\venv\Lib\site-packages\cplex

最后，我还将自己用户名的路径变量设置为如下所示：

"C:\Program Files\IBM\ILOG\CPLEX_Studio129\cplex\python\3.6\x64_win64" and
"C:\Program Files\IBM\ILOG\CPLEX_Studio129\cplex\bin\x64_win64\cplex.exe"

标签： pythondocplex

解决方案

就我而言，我升级到 python 3.8 并解决了这个问题

或者你可以使用这个：

pip install docplex==2.15.194

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