No Module Named pydispatch when using pyOpenGL

Question

I have been attempting to follow a tutorial online and I have followed every single line and for some reason I get the following error:

Traceback (most recent call last):
  File "C:/Users/User/Desktop/OpenGLContextTest.py", line 2, in <module>
    from OpenGLContext import testingcontext
  File "C:\Python27\lib\site-packages\openglcontext-2.2.0a2-py2.7.egg\OpenGLContext\testingcontext.py", line 10, in <module>
    from OpenGLContext import plugins, context, contextdefinition
  File "C:\Python27\lib\site-packages\openglcontext-2.2.0a2-py2.7.egg\OpenGLContext\context.py", line 32, in <module>
    from OpenGLContext import visitor, texturecache,plugins
  File "C:\Python27\lib\site-packages\openglcontext-2.2.0a2-py2.7.egg\OpenGLContext\visitor.py", line 3, in <module>
    from OpenGLContext.scenegraph import nodepath
  File "C:\Python27\lib\site-packages\openglcontext-2.2.0a2-py2.7.egg\OpenGLContext\scenegraph\nodepath.py", line 3, in <module>
    from vrml.vrml97 import nodepath, nodetypes
  File "C:\Python27\lib\site-packages\pyvrml97-2.3.0a2-py2.7.egg\vrml\vrml97\nodepath.py", line 4, in <module>
    from vrml import nodepath
  File "C:\Python27\lib\site-packages\pyvrml97-2.3.0a2-py2.7.egg\vrml\nodepath.py", line 3, in <module>
    from vrml import node, weaklist
  File "C:\Python27\lib\site-packages\pyvrml97-2.3.0a2-py2.7.egg\vrml\node.py", line 6, in <module>
    from vrml import field, fieldtypes, weaklist, weakkeydictfix
  File "C:\Python27\lib\site-packages\pyvrml97-2.3.0a2-py2.7.egg\vrml\field.py", line 2, in <module>
    from pydispatch import dispatcher, robustapply
ImportError: No module named pydispatch

I have attempted searching on google for the chance that this tutorial may be broken or something, but I don't believe it is. I have pydispatch and have attempted to install it using easy_install yet nothing changes. Can someone please help me with this? I know the code is completely correct as after a while I copied and pasted everything to ensure that it wasn't my syntax.

Answer 1

The instructions (apparently incorrectly) say to install pydispatcher. I had the same problem you did until I installed the module PyDispatcher. Confusingly, both exist.

Answer 2

To clarify on @Phil's answer.

I saw:

No module named pydispatch

And so I did:

sudo pip install pydispatch

The install worked, but Scrapy still didn't work because we were supposed to:

sudo pip install pydispatcher

Answer 3

You need to install PyDispatcher separately. Please take a look at the required packages for the tutorial to work along with the installation instructions here:

PyOpenGL Introduction

Check particularly within the section named Package Installation