934         version = module.__version__

   934         version = module.__version__

   935     else:

   935     else:

   936         version = b''

   936         version = b''

   937     if isinstance(version, (list, tuple)):

   937     if isinstance(version, (list, tuple)):

   938         version = b'.'.join(pycompat.bytestr(o) for o in version)

   938         version = b'.'.join(pycompat.bytestr(o) for o in version)

   939     return version

   943     return version

   940 

   944 

   941 

   945 

   942 def ismoduleinternal(module):

   946 def ismoduleinternal(module):

   943     exttestedwith = getattr(module, 'testedwith', None)

   947     exttestedwith = getattr(module, 'testedwith', None)