Question

我在Windows机器上使用Spyder和python 2.7以及matplotlib。

我正在尝试运行我的脚本，我收到以下错误：

runfile('C:/Python27/Scripts/python-serial-plot.py', wdir=r'C:/Python27/Scripts')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Python27\lib\site-packages\spyderlib\widgets\externalshell\sitecustomize.py", line 601, in runfile
    execfile(filename, namespace)
  File "C:\Python27\lib\site-packages\spyderlib\widgets\externalshell\sitecustomize.py", line 66, in execfile
    exec(compile(scripttext, filename, 'exec'), glob, loc)
  File "C:/Python27/Scripts/python-serial-plot.py", line 8, in <module>
    from matplotlib.backends.backend_gtkagg import FigureCanvasGTKAgg as FigureCanvas
  File "C:\Python27\lib\site-packages\matplotlib\backends\backend_gtkagg.py", line 14, in <module>
    from matplotlib.backends.backend_gtk import gtk, FigureManagerGTK, FigureCanvasGTK,\
  File "C:\Python27\lib\site-packages\matplotlib\backends\backend_gtk.py", line 36, in <module>
    from matplotlib.backends.backend_gdk import RendererGDK, FigureCanvasGDK
  File "C:\Python27\lib\site-packages\matplotlib\backends\backend_gdk.py", line 33, in <module>
    from matplotlib.backends._backend_gdk import pixbuf_get_pixels_array
ImportError: No module named _backend_gdk

我转到了存储后端的目录，但看不到_backend_gdk。

如何解决此问题？

Answer 1

您需要更改图形后端以修复此错误。在Spyder你需要去

Tools > Preferences > IPython console > Graphics > Graphics backend

然后在那里选择Inline或Automatic。

Answer 2

您可以切换后端以列出所有后端：

In [5]: import matplotlib

In [6]: matplotlib.rcsetup.all_backends

然后使用matplotlib.use('some_backend')选择另一个，我不使用Windows，所以不能推荐使用什么，但你可以尝试不同的，看看什么效果最好。

matplotlib.use('some_backend')应该在任何import matplotlib.pyplot等语句之前

what is a backend

没有名为_backend_gdk的模块

2 个答案: