A few useful tricks when debugging code with [i]pdb

pdb_tricks

# Put a breakpoint in a file that is not part of our code
# Ref: https://stackoverflow.com/q/13589736/593722
(Pdb) import sys
(Pdb) sys.path.append("/home/user/path/to/another/module")
(Pdb) import another_module
(Pdb) b another_module:356
Breakpoint 1 at /home/user/path/to/another/module/another_module.py:356
(Pdb) c

# Conditionally hit the breakpoint #1
(Pdb) conditions 1 some_variable == some_value

# Watch a variable when you are hitting breakpoint #1. And ensure the breakpoint is only hit whenever the variable takes a certain value. 
# Ref: https://stackoverflow.com/a/34620310/593722
(Pdb) commands 1
(com) print(some_variable)
(com) end