TypeError:交互运行pyprocessing脚本时出现super(type，obj)

Question

Python 2.7.3:

创建尽可能简单的pyprocessing文件并将其保存为foo.py:

from pyprocessing import *
def setup():
    size(100,100)
def draw():
    rect(10,10,10,10)
run()

现在在python中：

>>> execfile('foo.py')

文件按预期运行。关闭pyprocessing窗口返回提示并键入：

>>> execfile('foo.py')

迎接你的是：

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "foo.py", line 9, in <module>
    run()
  File "/usr/local/lib/python2.7/dist-packages/pyprocessing-0.1.3.22-py2.7.egg/pyprocessing/__init__.py", line 417, in run
    __main__.setup()
  File "foo.py", line 4, in setup
    size(100,100)
  File "/usr/local/lib/python2.7/dist-packages/pyprocessing-0.1.3.22-py2.7.egg/pyprocessing/__init__.py", line 335, in size
    config=canvas.config, caption=caption, visible = isVisible)
  File "/usr/local/lib/python2.7/dist-packages/pyprocessing-0.1.3.22-py2.7.egg/pyprocessing/flippolicy.py", line 142, in __init__
    super(BackupWindow, self).__init__(*args, **keyargs)
  File "/usr/local/lib/python2.7/dist-packages/pyglet-1.1.4-py2.7.egg/pyglet/window/xlib/__init__.py", line 474, in __init__
    super(XlibWindow, self).__init__(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/pyglet-1.1.4-py2.7.egg/pyglet/window/__init__.py", line 690, in __init__
    self.set_visible(True)
  File "/usr/local/lib/python2.7/dist-packages/pyglet-1.1.4-py2.7.egg/pyglet/window/xlib/__init__.py", line 878, in set_visible
    self._map()
  File "/usr/local/lib/python2.7/dist-packages/pyglet-1.1.4-py2.7.egg/pyglet/window/xlib/__init__.py", line 710, in _map
    self.dispatch_event('on_resize', self._width, self._height)
  File "/usr/local/lib/python2.7/dist-packages/pyglet-1.1.4-py2.7.egg/pyglet/window/__init__.py", line 1219, in dispatch_event
    EventDispatcher.dispatch_event(self, *args)
  File "/usr/local/lib/python2.7/dist-packages/pyglet-1.1.4-py2.7.egg/pyglet/event.py", line 352, in dispatch_event
    event_type, args, getattr(self, event_type))
  File "/usr/local/lib/python2.7/dist-packages/pyglet-1.1.4-py2.7.egg/pyglet/event.py", line 349, in dispatch_event
    return getattr(self, event_type)(*args)
  File "/usr/local/lib/python2.7/dist-packages/pyprocessing-0.1.3.22-py2.7.egg/pyprocessing/flippolicy.py", line 168, in on_resize
    super (FBOWindow, self).on_resize(w,h)
TypeError: super(type, obj): obj must be an instance or subtype of type

这里发生了什么？这是一个错误吗？我用错pyprocessing了吗？

Answer 1

这是因为子流程每次都会产生一个单独的流程：

from subprocess import call 
call([sys.executable, 'foo.py'])

有关subprocess.call的更全面的讨论，请参阅此SO问题。