[Jython-users] Strange Behavior (to me)

[<Ron...@Ne...>]

I have the following situation, which strikes me as bizarre:


  file Ab.py:
 ---------------
 class AB :

       def handleCommand (self, cmd) :
              print "AB.handleCommand()"


file fred.py:
----------------
from AB import AB

class fred (AB) :

       def handleCommand (self, cmd) :
               print "fred.handleCommand()"


file C.py:

from AB import AB
from fred import fred

class C (fred) :

       def handleCommand (self, cmd) :
              if blahBlah :  <<=========  is false
                       fred.handleCommand(self, cmd)
              else :
                       AB.handleCommand(self, cmd)


Ok.   Everything has been running fine for "months";  I see
"AB.handleCommand()" in
the output, just as is desired.

Today I just happened to notice that module AB was used in the import
statements and not module Ab.    I'm a freak about details, so I changed
the imports to say module Ab and not AB.   Now the code breaks with a
traceback
saying:   "TypeError: unbound method must be called with class instance 1st
argument"

 I changed the imports back
to say module AB, and all works again.

What is happening - my brain feels like it's leaking.