The following was cut and pasted exactly (except for the # lines which I added after the fact) from an interactive python session in a Window 2000 cmd.exe window. Can somebody please explain to me what the heck is going on?!?!
Python 2.4.2 (#67, Sep 28 2005, 12:41:11) [MSC v.1310 32 bit (Intel)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> class A: ... def m1(self): print "m1" ... def m2(self): print "m2" ... >>> a = A() >>> a.m1() m1 >>> a.m2() m2 # ok, both methods work and give the expected results # so i presume they are different methods. >>> id(a.m1) 9202984 >>> id(a.m2) 9202984 >>> id(a.m1)==id(a.m2) True # Huh? They seem to be the same. >>> a.m1 is a.m2 False # But not the same... >>> a.m1 <bound method A.m1 of <__main__.A instance at 0x00923B98>> >>> a.m2 <bound method A.m2 of <__main__.A instance at 0x00923B98>> # Let's look at them in hex... >>> hex(id(a.m1)) '0x8c6d28' >>> hex(id(a.m2)) '0x8e7b48' # Now they are different. 0x8c6d28->9202984, 0x8e7b48->9337672 >>> id(a.m1) 9337672 >>> id(a.m2) 9337672 # Now they are both equal to the second one. >>> hex(id(a.m1)) '0x8e7b48' >>> hex(id(a.m2)) '0x8e7b48' # in hex too. >>> id <built-in function id> >>> hex <built-in function hex> # just double checking! Why??? This is so bizarre I'm sure I am doing something really stupid. -- http://mail.python.org/mailman/listinfo/python-list
