Python pdb - Revision history

Jfreier at 20:20, 4 December 2024

2024-12-04T20:20:53Z

Jfreier at 16:04, 3 December 2024

2024-12-03T16:04:15Z

Jfreier at 13:22, 29 May 2024

2024-05-29T13:22:37Z

Jfreier at 20:44, 28 May 2024

2024-05-28T20:44:05Z

Jfreier: Created page with "To debug python applications use the library pdb. Add the following to the top of your file. import pdb pdb.set_trace() And then just add the following to your command...."

2024-05-28T20:42:11Z

Created page with "To debug python applications use the library pdb. Add the following to the top of your file. import pdb pdb.set_trace() And then just add the following to your command...."

New page

To debug python applications use the library pdb.

Add the following to the top of your file.

import pdb
pdb.set_trace()

And then just add the following to your command.
--pdb

Example
pytest --pdb test/test.py

Once it starts up you will be brought to a promote.
From the there you can use any of the following.

Navigating Code (within the Pdb interpreter)
l(ist) list 11 lines surrounding the current line
w(here) display the file and line number of the current line
n(ext) execute the current line
s(tep) step into functions called at the current line
r(eturn) execute until the current function’s return is encountered

Controlling Execution
b[#] create a breakpoint at line [#]
b list breakpoints and their indices
c(ontinue) execute until a breakpoint is encountered
clear[#] clear breakpoint of index [#]

Changing Variables / Interacting with Code
p<name> print value of the variable <name>
!<expr> execute the expression <expr> NOTE: this acts just like a python interpreter
q(uit) exit the debugger

To add a breakpoint in the python.
breakpoint()

@@ Line 37: / Line 37: @@
    !<expr> execute the expression <expr> NOTE: this acts just like a python interpreter
    q(uit)  exit the debugger
 Issues
 If pdb is breaking in the wrong location try adding the following flag.
    --no-cov

← Older revision		Revision as of 16:04, 3 December 2024
Line 37:		Line 37:
	!<expr> execute the expression <expr> NOTE: this acts just like a python interpreter		!<expr> execute the expression <expr> NOTE: this acts just like a python interpreter
	q(uit) exit the debugger		q(uit) exit the debugger
		+
		+	Issues
		+	If pdb is breaking in the wrong location try adding the following flag.
		+	--no-cov

@@ Line 4: / Line 4: @@
    import pdb
    pdb.set_trace()
 And then just add the following to your command.
@@ Line 33: / Line 37: @@
    !<expr> execute the expression <expr> NOTE: this acts just like a python interpreter
    q(uit)  exit the debugger

@@ Line 17: / Line 17: @@
 Navigating Code (within the Pdb interpreter)
    l(ist)   list 11 lines surrounding the current line
    w(here)  display the file and line number of the current line
    n(ext)   execute the current line