Python 3.7无法使用DOCPLEX
Python 3.7无法使用DOCPLEX
提问于 2021-04-16 07:08:30
我已经编码了一个数学模型，并希望使用DOCPLEX模块来解决它。我的解释器是Python 3.7。但是，在做了大量工作之后，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
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，我还将我自己用户名的path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"回答 4
Stack Overflow用户
发布于 2021-04-16 07:12:44
在我的例子中，我升级到了python 3.8并解决了这个问题
或者，您可以使用以下命令：
pip install docplex==2.15.194Stack Overflow用户
发布于 2021-04-16 16:08:39
问题是python setup.py install不能保证你使用的python解释器和你的虚拟环境是一样的。
在运行安装脚本之前，您需要激活env。请打开终端，然后运行：
C:\Users\xxx\PycharmProjects\pythonProject\venv\Scripts\activate然后你就可以
cd C:\Program Files\IBM\ILOG\CPLEX_Studio201\cplex\python
pip install .Stack Overflow用户
发布于 2021-04-16 17:22:04
Docplex有一个check_list.py脚本，它可以帮助诊断cplex版本的存在和位置。在存在Python的终端中，键入
$ python -m docplex.mp.check_list答案看起来像这样：
* system is: Windows 64bit
* Python version 3.7.8, located at: C:\python\anaconda2020.02\envs\docplex37\python.exe
* docplex is present, version is 2.20.204
* CPLEX library is present, version is 12.10.0.0, located at: C:\OPTIM\cplex_distrib\cplex1210R0\python\3.7\x64_win64
* pandas is present, version is 1.1.4页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/67117070
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