Import conda pyqt导入在新虚拟环境中失败

我尝试使用pyqt运行程序

如果我不使用虚拟环境，它会工作，但如果我激活虚拟环境，它会失败：ImportError:DLL加载失败

Traceback (most recent call last):
  File "submitA2.py", line 14, in <module>
    import matplotlib.pyplot as plt
  File "C:\Users\jerem\Anaconda3\envs\deep\lib\site-packages\matplotlib\pyplot.py", line 116, in <module>
    _backend_mod, new_figure_manager, draw_if_interactive, _show = pylab_setup()
  File "C:\Users\jerem\Anaconda3\envs\deep\lib\site-packages\matplotlib\backends\__init__.py", line 60, in pylab_setup
    [backend_name], 0)
  File "C:\Users\jerem\Anaconda3\envs\deep\lib\site-packages\matplotlib\backends\backend_qt5agg.py", line 16, in <module>
    from .backend_qt5 import (
  File "C:\Users\jerem\Anaconda3\envs\deep\lib\site-packages\matplotlib\backends\backend_qt5.py", line 18, in <module>
    import matplotlib.backends.qt_editor.figureoptions as figureoptions
  File "C:\Users\jerem\Anaconda3\envs\deep\lib\site-packages\matplotlib\backends\qt_editor\figureoptions.py", line 20, in <module>
    import matplotlib.backends.qt_editor.formlayout as formlayout
  File "C:\Users\jerem\Anaconda3\envs\deep\lib\site-packages\matplotlib\backends\qt_editor\formlayout.py", line 56, in <module>
    from matplotlib.backends.qt_compat import QtGui, QtWidgets, QtCore
  File "C:\Users\jerem\Anaconda3\envs\deep\lib\site-packages\matplotlib\backends\qt_compat.py", line 137, in <module>
    from PyQt5 import QtCore, QtGui, QtWidgets
ImportError: DLL load failed: The specified procedure could not be found.

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如何解决这个问题？？谢谢。

一个不完美的解决方案：安装不同版本的PyQt5似乎可以解决这个问题

activate myenv
conda install pyqt=5.9

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Jeremy Chen的解决方案是唯一对我有效的解决方案。i、 e

conda在您的conda环境中安装pyqt=5.9

互联网上列出的所有其他解决方案都不起作用。 但pytqt=5.9的此安装在尝试时会中断matplotlib模块，并出现以下错误

import matplotlib

ImportError:无法导入名称“get\u backend”

这是通过使用

conda卸载matplotlib

然后重新安装

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conda install matplotlib

这可以是注释，而不是答案。

activate myenv
conda install pyqt=5.9