[Python-Dev] Bug? Can't rebind local variables after calling pdb.set_trace() (original) (raw)

Guido van Rossum guido at python.org
Tue Apr 12 23:02:09 CEST 2011

On Tue, Apr 12, 2011 at 1:05 PM, Lennart Regebro <regebro at gmail.com> wrote:

Hasn't it always been like that? I tried with Python 2.3 now and it's the same. I have no memory of that actually changing an existing variable in any version of Python I've used. More testing turns out that this works:

-> print "lv is ", lv (Pdb) lv=2 (Pdb) c lv is  2 While this seem to "reset" is: -> print "lv is ", lv (Pdb) lv=2 (Pdb) lv 1 (Pdb) c lv is  1 This is the same from Python 2.3 to 2.6. I thought is just was a lack of feature, that there for some reason was really hard to change the value of an existing variable from the debugger. I though that for ten years. It never occurred to me to change the variable and type c without first checking that the variable had changed... :-) It is however fixed in 2.7. -> print "lv is ", lv (Pdb) lv=2 (Pdb) lv 2 (Pdb) c lv is  2

But this bug/lack of feature has been there as long as I can remember. :-)

I swear it was my intention that assigning to locals would work, and I was surprised to learn that it didn't. I'm glad it's fixed in 2.7 though... :-)

-- --Guido van Rossum (python.org/~guido)

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