I have been trying to figure out how to use pdb to correct simple errors in a
file and then continue with program execution. Perhaps someone can tell me why
this is not working for me.
Here is my file test.py:
#------------------
import pdb
pdb.set_trace()
print """
this is a test file
"""
x = 0
y = 4.2
z = y/x
print z
print "with a bug"
#------------------
The line `z = y/x` fails because x is zero.
If I run this, I can step until that exception occurs, at which point I see
ZeroDivisionError: 'float division'
> c:\temp\test.py(9)<module>()
-> z = y/x
(Pdb)
Now, I thought I would be able to set x to another value and then jump back to
re-run the line with the division statement. However, that does not seem to
work. Here's what happens:
(Pdb) !x = 2
(Pdb) j 9
> c:\temp\test.py(9)<module>()
-> z = y/x
(Pdb) n
--Return--
> c:\temp\test.py(9)<module>()->None
-> z = y/x
(Pdb) n
Traceback (most recent call last):
File "C:\temp\test.py", line 9, in <module>
z = y/x
ZeroDivisionError: float division
I have also tried assigning a value to z and jumping past the illegal division,
but I can't get that to work either.
It seems that there must be a way to do this, but I can't find it. Any help
would be appreciated.
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