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Pdb with Rich library.

Project description

pdbr

PyPI version Python Version

pdbr is intended to make the PDB results more colorful. it uses Rich library to carry out that.

Installing

Install with pip or your favorite PyPi package manager.

pip install pdbr

Breakpoint

In order to use breakpoint(), set PYTHONBREAKPOINT with "pdbr.set_trace"

import os

os.environ["PYTHONBREAKPOINT"] = "pdbr.set_trace"

or just import pdbr

import pdbr

New commands

(ic)ecream

🍦 Icecream print.

(i)nspect / inspectall | ia

rich.inspect

search | src

Search a phrase in the current frame. In order to repeat the last one, type / character as arg.

(v)ars

Get the local variables list as table.

varstree | vt

Get the local variables list as tree.

Config

Style

In order to use Rich's traceback, style, and theme, set setup.cfg.

[pdbr]
style = yellow
use_traceback = True
theme = friendly

History

store_history setting is used to keep and reload history, even the prompt is closed and opened again.

[pdbr]
...
store_history=.pdbr_history

Celery

In order to use Celery remote debugger with pdbr, use celery_set_trace as below sample. For more information see the Celery user guide.

from celery import Celery

app = Celery('tasks', broker='pyamqp://guest@localhost//')

@app.task
def add(x, y):

    import pdbr; pdbr.celery_set_trace()

    return x + y

Telnet

Instead of using telnet or nc, in terms of using pdbr style, pdbr_telnet command can be used.

IPython

Being able to use ipython, install pdbr with it like below or just install your own version.

pip install pdbr[ipython]

pytest

In order to user pdbr with pytest --pdb flag, add addopts setting in your pytest.ini.

[pytest]
addopts: --pdbcls=pdbr:RichPdb

Django DiscoverRunner

To being activated the pdb in Django test, change TEST_RUNNER like below. Unlike Django (since you are not allowed to use for smaller versions than 3), pdbr runner can be used for version 1.8 and subsequent versions.

TEST_RUNNER = "pdbr.runner.PdbrDiscoverRunner"

Django Middleware

In order to catch the problematic codes with post mortem, place the middleware class.

MIDDLEWARE = (
    ...
    "pdbr.middleware.PdbrMiddleware",
)

Shell

Running pdbr command in terminal starts an IPython terminal app instance. Unlike default TerminalInteractiveShell, the new shell uses pdbr as debugger class instead of ipdb.

%debug magic sample

Terminal

Django shell sample

Vscode user snippet

To create or edit your own snippets, select User Snippets under File > Preferences (Code > Preferences on macOS), and then select python.json.

Place the below snippet in json file for pdbr.

{
  ...
  "pdbr": {
        "prefix": "pdbr",
        "body": "import pdbr; pdbr.set_trace()",
        "description": "Code snippet for pdbr debug"
    },
}

For Celery debug.

{
  ...
  "rdbr": {
        "prefix": "rdbr",
        "body": "import pdbr; pdbr.celery_set_trace()",
        "description": "Code snippet for Celery pdbr debug"
    },
}

Samples

Traceback

Project details


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