Question

I never know how to read these. It would be helpful if someone could help me understand this one, and maybe give advice on how to read these in general?

D:\>python captain2.py
Traceback (most recent call last):
  File "captain2.py", line 2, in <module>
    from twisted.internet import reactor
  File "c:\Python27\lib\site-packages\twisted\internet\reactor.py", line 37, in
<module>
    from twisted.internet import default
  File "c:\Python27\lib\site-packages\twisted\internet\default.py", line 50, in
<module>
    install = _getInstallFunction(platform)
  File "c:\Python27\lib\site-packages\twisted\internet\default.py", line 46, in
_getInstallFunction
    from twisted.internet.selectreactor import install
  File "c:\Python27\lib\site-packages\twisted\internet\selectreactor.py", line 1
4, in <module>
    from zope.interface import implements
ImportError: No module named zope.interface

Answer 1

In a stack traceback, Python lists the current call stack, in the order the calls happened. So, first your code in captain2.py:

from twisted.internet import reactor

Then the reactor module did:

from twisted.internet import default

and so on, until selectreactor.py did:

from zope.interface import implements

and apparently there does not exist a zope.interface module on your system.