Komodo - watch variables and execute code while on pause in the program

Question

With c# in the Visual Studio IDE I can pause at anytime a program and watch its variables, inspect whatever I want. I noticed that with the Komodo IDE when something crashes

Answer 1

If you put

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

in your program, then you will be dumped to a python interpreter. (See Method to peek at a Python program running right now)

This is a little different than pausing Komodo, but perhaps you can use it to achieve the same goal.

Pressing Ctrl-d exits the python interpreter and allows your program to resume.

You can inspect the call stack using the traceback module:

import traceback
traceback.extract_stack()

For example, here is a decorator which prints the call stack:

def print_trace(func):
    '''This decorator prints the call stack
    '''
    def wrapper(*args,**kwargs):
        stacks=traceback.extract_stack()
        print('\n'.join(
            ['  '*i+'%s %s:%s'%(text,line_number,filename)
             for i,(filename,line_number,function_name,text) in enumerate(stacks)]))
        res = func(*args,**kwargs)
        return res
    return wrapper

Use it like this:

@print_trace
def f():
    pass