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Helper utilities for Python projects

Project description

https://github.com/crccheck/project_runpy/actions/workflows/ci.yaml/badge.svg?branch=master

Generic helpers I wish existed or am constantly copying into my Python projects. This is also my test project for random processes.

env

Get information about your environment variables.

.get(key, ...)

You can use env.get as a drop-in replacement for os.environ.get. It acts the same but is smarter about types and has extra magic for ENVIRONMENT based settings:

from project_runpy import env

env.get('DATABASE_URL')  # get an environment variable
env.get('DATABASE_URL', 'sqlite:///:memory:')  # provide a default
env.get('DEBUG', True)  # default can be bool
env.get('WORKERS', 10)  # default can be other types too, like int
env.get('DEBUG', True, type_func=bool)  # explicitly get bool

If additional kwargs are specified, they will become the default if ENVIRONMENT matches the key:

from project_runpy import env

env.get('WORKERS', 10, DEV=1)  # if ENVIRONMENT == DEV: default = 1
env.get('DEBUG', FALSE, type_func=bool, TEST=False)  # combine it

.require(key, ...)

If you want to be extra strict/cautious, you can raise an exception if the environment variable was not set by using .require instead of .get.

Demo:

>>> from project_runpy import env
>>> env.require('SHIRTSNSHOES')
ImproperlyConfigured: Environment variable not found: SHIRTSNSHOES

ColorizingStreamHandler

Logging handler that produces colorized console output

Usage:

import logging

from project_runpy import ColorizingStreamHandler

logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)
logger.addHandler(ColorizingStreamHandler())

Django:

LOGGING = {

    ...

    'handlers': {

        ...

        'console': {
            'level': 'DEBUG',
            'class': 'project_runpy.ColorizingStreamHandler',
        },
    },

    ...

}

ReadableSqlFilter

A logging filter designed to make the django.db.backends output more readable in local dev. This is an alternate to Django Debug Toolbar’s SQL panel (which, you should be using too) and adds feedback for queries outside HTML. This will slow down your dev server, but it’s a tradeoff for getting faster feedback for optimizing your queries.

Django compatibility: Django >= 2.0

Turns:

(0.002) SELECT "tx_elevators_building"."id", "tx_elevators_building"."elbi",
"tx_elevators_building"."name_1", "tx_elevators_building"."name_2",
"tx_elevators_building"."address_1", "tx_elevators_building"."address_2",
"tx_elevators_building"."city", "tx_elevators_building"."zip_code",
"tx_elevators_building"."county", "tx_elevators_building"."owner",
"tx_elevators_building"."contact", "tx_elevators_building"."latitude",
"tx_elevators_building"."longitude" FROM "tx_elevators_building" LIMIT 21;
args=()

Into:

(0.002) SELECT...FROM "tx_elevators_building" LIMIT 21

And when you have many queries, they all line up nicely in your terminal.

To install, edit your Django settings:

LOGGING = {
    ...
    'filters': {
        'readable_sql': {
            '()': 'project_runpy.ReadableSqlFilter',
        },
    },
    'loggers': {
        'django.db.backends': {
            'filters': ['readable_sql'],
            ...
        },
    },
    ...
}

About

Inspired by dj-settings-helpers, ansistrm.py, and tornado’s define.

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