[Python-checkins] CVS: python/dist/src/Lib asynchat.py,1.7,1.7.2.1

[Moshe Zadka]

Update of /cvsroot/python/python/dist/src/Lib
In directory usw-pr-cvs1:/tmp/cvs-serv17702/Lib

Modified Files:
      Tag: release20-maint
	asynchat.py 
Log Message:
Inspired by Tim Peters' 1.14->1.15 checkin to asynchat
Quoting orignal message:
'''
Fix from the Madusa mailing list:
    http://groups.yahoo.com/group/medusa/message/333

It's clear that Medusa should not be checking for an empty buffer
via "buf is ''".  The patch merely changes "is" to "==".  However,
there's a mystery here all the same:  Python attempts to store null
strings uniquely, so it's unclear why "buf is ''" ever returned
false when buf actually was empty.  *Some* string operations produce
non-unique null strings, e.g.
'''


Index: asynchat.py
===================================================================
RCS file: /cvsroot/python/python/dist/src/Lib/asynchat.py,v
retrieving revision 1.7
retrieving revision 1.7.2.1
diff -C2 -r1.7 -r1.7.2.1
*** asynchat.py	2000/09/08 20:30:39	1.7
--- asynchat.py	2001/04/11 08:06:02	1.7.2.1
***************
*** 167,171 ****
  		# this is about twice as fast, though not as clear.
  		return not (
! 			(self.ac_out_buffer is '') and
  			self.producer_fifo.is_empty() and
  			self.connected
--- 167,171 ----
  		# this is about twice as fast, though not as clear.
  		return not (
! 			(self.ac_out_buffer == '') and
  			self.producer_fifo.is_empty() and
  			self.connected