CODEWITHSUNDEEP
pythondebuggingipythonbreakpoints
Kenny
Kenny

Reputation: 1982

Debug Python Script Using Multiple Breakpoints in IPython

How do we set multiple breakpoints in Python using IPython, so that for example we stop at line 4 and line 100?

Also, can we change our mind and set extra breakpoints while already in debugging?

Upvotes: 1

Views: 540

Answers (1)

Ajeet Shah
Ajeet Shah

Reputation: 19823

iPython provides IPython.core.debugger.Tracer debugger class which can be used to debugging.

Let's say I have below code written in myScript.py:

from IPython.core.debugger import Tracer
zz = Tracer()

print "iPython"
zz()
print "is a"
print "command shell"
zz()
print "for"
print "interactive computing"
print "in"
print "multiple programming languages"
print "including"
print "Python"

As you can see I have set 2 breakpoints in the script from the beginning at Line 5 and 8. Below, I am running this script and will be setting 2 more breakpoints at line 12 & 13.

$ ipython myScript.py
iPython
> /home/user/Documents/myScript.py(6)<module>()
      4 print "iPython"
      5 zz()
----> 6 print "is a"
      7 print "command shell"
      8 zz()

ipdb> break 12
Breakpoint 1 at /home/user/Documents/myScript.py:12
ipdb> break 13
Breakpoint 2 at /home/user/Documents/myScript.py:13

Also, when inside debugging, you can use commands c for continue and n for next step. Hopefully, it helps you.

Upvotes: 1

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