How do I step through/debug a python web application?
Question: I can't seem to find any information on debugging a python web application,
specifically stepping through the execution of a web request.

is this just not possible? if no, why not?


Answer: If you put

    
    
    import pdb
    pdb.set_trace()
    

in your code, the web app will drop to a pdb debugger session upon executing
`set_trace`.

Also useful, is

    
    
    import code
    code.interact(local=locals())
    

which drops you to the python interpreter. Pressing Ctrl-d resumes execution.

Still more useful, is

    
    
    import IPython.Shell 
    ipshell = IPython.Shell.IPShellEmbed()
    ipshell(local_ns=locals())
    

which drops you into an IPython session (assuming you've installed IPython).
Here too, pressing Ctrl-d resumes execution.

