Is it possible to run commands in IPython with debugging?

Question

Here are my actions in IPython:

> import my_module
> import ipdb

Now, my module lacks any executable code, it only declares classes. So I want to make a statement:

> g = my_module.Graph()
> f = open('test.osm')
> g.from_osm(f)

I want to put a breakpoint inside Graph.from_osm, without editing the file. I don't want to put the latter lines into the file and to do python -m ipdb .... I just want to run commands and debug.

Is this possible?

added: I see, it's possible to

%run -d script_name

or

> import pdb
> pdb.run('statement')

but it's impossible to do ipdb.run('statement'), there's no .run in ipdb!

Answer 1

Since IPython 3.2.2, the %debug magic, if given an argument (a single line or a cell), executes it under debugger.

• It breaks before executing anything, giving you a chance to set breakpoints and/or start stepping through the code.
• And it accepts a --breakpoint argument that sets one more breakpoint (as a part of the command, it'll be saved in command history, saving you typing for repeated invocations).

Answer 2

Perhaps the 'magic' commands %debug and / or %pdb in IPython can help you.