问题
How to debug python programs in emacs?
I use python-mode.el
I get reference like
import pdb; pdb.set_trace();
but not sure how to use it.
回答1:
Type M-x cd to change directory to the location of the program you wish to debug.
Type M-x pdb. You'll be prompted with Run pdb (like this): pdb. Enter the name of the program (e.g. test.py).
At the (Pdb) prompt, type help to learn about how to use pdb.
Alternatively, you can put
import pdb
pdb.set_trace()
right inside your program (e.g. test.py). Now type M-x shell to get a shell prompt. When you run your program, you'll be dumped into pdb at the point where pdb.set_trace() is executed.
回答2:
For me, I needed to replace the default "pdb" with
python -m pdb myscript.py
回答3:
The realgud package (available from MELPA) supports PDB (among a gazillion other debuggers), and has a host of neat features that Emac's PDB doesn't have.
The one I like best is the shortkeys mode. Once you start debugging a program, you can press n, s, c etc. right in the source window, instead of having to type these commands in the PDB buffer. It also supports Visual-Studio style keybindings with function keys (f10, f11, f5, etc).
After installing RealGUD, you need to run M-x load-feature realgud to load it, and you can start pdb with M-x realgud:pdb.
来源：https://stackoverflow.com/questions/2324758/debugging-python-programs-in-emacs