Windows中的Python XVFB错误


问题内容

对于虚拟Framebuffer(无头测试),我使用了Xvfbwith
PyVirtualDisplay,它在Ubuntu中工作正常,但在Windows7中显示错误。这是发生问题的代码的一部分。

from pyvirtualdisplay import Display
display = Display(visible=1, size=(300, 400))
display.start()

但是当我在Windows中运行相同的命令时,出现此错误

Traceback (most recent call last):
  File "C:\Python27\Scripts\pynt-script.py", line 9, in <module>
    load_entry_point('pynt==0.8.0', 'console_scripts', 'pynt')()
  File "C:\Python27\lib\site-packages\pynt\_pynt.py", line 295, in main
    build(sys.argv[1:])
  File "C:\Python27\lib\site-packages\pynt\_pynt.py", line 48, in build
    module = imp.load_source(path.splitext(path.basename(args.file))[0], args.fi
le)
  File "build.py", line 7, in <module>
    display = Display(visible=1, size=(300,400))
  File "C:\Python27\lib\site-packages\pyvirtualdisplay\display.py", line 33, in
__init__
    self._obj = self.display_class(
  File "C:\Python27\lib\site-packages\pyvirtualdisplay\display.py", line 50, in
display_class
    cls.check_installed()
  File "C:\Python27\lib\site-packages\pyvirtualdisplay\xvfb.py", line 34, in che
ck_installed
    ubuntu_package=PACKAGE).check_installed()
  File "C:\Python27\lib\site-packages\easyprocess\__init__.py", line 209, in che
ck_installed
    raise EasyProcessCheckInstalledError(self)
easyprocess.EasyProcessCheckInstalledError: cmd=['Xvfb', '-help']
OSError=[Error 2] The system cannot find the file specified
Program install error!

我认为我的程序无法找到xvfb程序/库?我安装了xvfbwrapper(https://github.com/cgoldberg/xvfbwrapper),但问题仍然存在。我再次认为xvfbwrapper与xvfb不同吗?

Windows平台的任何替代选择,可以进行无头测试(虚拟帧缓冲)


问题答案:

因为Xvfb找不到命令,所以您收到错误消息。Xvfb是X虚拟帧缓冲区,它不是Microsoft
Windows 7的一部分。