Python3.5 backend_tkagg不再可用？

Question

我正在尝试运行以前运行的应用程序。它曾经在Ubuntu和Windows 7上运行。我现在有一台Windows
10计算机，代码失败。可能是因为我现在使用的是python 3.5，尽管坦率地说我不记得我在其他计算机上（不再可用）上的内容。

关键行是：

import matplotlib
matplotlib.use("TkAgg")
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, NavigationToolbar2TkAgg

不久前已从各个地方取消。但是，现在当我运行它时，它会引发错误：

Traceback (most recent call last):
  File "C:\....py", line 17, in <module>
    from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, NavigationToolbar2TkAgg
  File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\matplotlib\backends\backend_tkagg.py", line 13, in <module>
    import matplotlib.backends.tkagg as tkagg
  File "C:\Users\g...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\matplotlib\backends\tkagg.py", line 9, in <module>
    from matplotlib.backends import _tkagg
ImportError: DLL load failed: The specified module could not be found.

在交互式会话中，似乎是第三行失败了：

>>> import matplotlib
>>> matplotlib.use("TkAgg")
>>> from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, NavigationToolbar2TkAgg
Traceback (most recent call last):
  File "<pyshell#4>", line 1, in <module>
    from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, NavigationToolbar2TkAgg
  File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\matplotlib\backends\backend_tkagg.py", line 13, in <module>
    import matplotlib.backends.tkagg as tkagg
  File "C:\Users\...\AppData\Local\Programs\Python\Python35-32\lib\site-packages\matplotlib\backends\tkagg.py", line 9, in <module>
    from matplotlib.backends import _tkagg
ImportError: DLL load failed: The specified module could not be found.

我试过了

pip uninstall matplotlib
pip install matplotlib

在命令提示符下，但错误仍然存​​在。

似乎可能有python-matplotlib-tk软件包，但我不确定这是什么。

我应该回到python 3.4，还是有解决方案？这是一个已知问题吗？

针对以下有关安装matplotlib的评论：

C:\>pip install matplotlib
Collecting matplotlib
  Downloading matplotlib-1.5.1-cp35-none-win32.whl (6.2MB)
    100% |################################| 6.2MB 67kB/s
Requirement already satisfied (use --upgrade to upgrade): numpy>=1.6 in c:\users\...\appdata\local\programs\python\python35-32\lib\site-packages (from matplotlib)
Requirement already satisfied (use --upgrade to upgrade): pytz in c:\users\...\appdata\local\programs\python\python35-32\lib\site-packages (from matplotlib)
Requirement already satisfied (use --upgrade to upgrade): python-dateutil in c:\users\...\appdata\local\programs\python\python35-32\lib\site-packages (from matplotlib)
Requirement already satisfied (use --upgrade to upgrade): cycler in c:\users\...\appdata\local\programs\python\python35-32\lib\site-packages (from matplotlib)
Requirement already satisfied (use --upgrade to upgrade): pyparsing!=2.0.4,>=1.5.6 in c:\users\...\appdata\local\programs\python\python35-32\lib\site-packages (from matplotlib)
Requirement already satisfied (use --upgrade to upgrade): six>=1.5 in c:\users\...\appdata\local\programs\python\python35-32\lib\site-packages (from python-dateutil->matplotlib)
Installing collected packages: matplotlib
Successfully installed matplotlib-1.5.1

Answer 1

我有同样的问题

我在matplotlib中阅读了文档

对于Python 3.5，需要安装Visual Studio 2015的Visual C 可再发行组件。如果未为所有用户安装Python
2.7至3.4（不是默认值），则使用Microsoft Visual C
2008（对于Python
2.7至3.2为64位或32位）或Microsoft Visual C ++ 2010（对于Python 3.3和64位或32位）
3.4）需要安装可再发行软件包。

我安装了Visual Studio 2015的Visual C ++
Redistributable， 它解决了这个问题