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Tools for building CLI applications

Project description

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Python module to simplify building CLI applications. Includes simple helpers for building an app, validating arguments, configfiles/default values, logging, global exception catching, privilege escalation, signal handling, time/timezones, multithreading…

Currently python 2.7 compatible, py3 in progress…

Documentation in progress…

appframework

appconfig

This module presents configuration values combined from defaults, user config, and environment variables.

To get a configuration variable named some_value:

from pyapputil.appconfig import appconfig
appconfig["some_value"]

The default values are stored in appdefaults.py in the application’s root directory. This is a pure python file that gets imported, so you it can be anything from a list of variables/values to any arbitrary code you need to set up your default values.

The user can optionally provide a userconfig.yml file to override the defaults. This is a text YAML file that gets loaded after appdefaults.py, and any values in this file will override values from appdefautls. If the user wants to override a default named some_var, they can simply add an entry to userconfig.yml like this: some_value: 123

The user can optionally export environment variables to override the defaults or user config. The prefix used for environment variables is set in appdefaults.py. If the prefix is set to “MYAPP_” and the user wan’t to override a config var named some_value, they could override it with an environment varible like this:

export MYAPP_SOME_VALUE=123

argutil

This is a forked version of python’s argparse, that is integrated with appconfig so that command line arguments can automatically set default values from appconfig, and the help display will show the default value as well as the name of the ENV variable that can be used to override it.

typeutil

Collection of type validators that can be used with argparse/argutil, and decorators and util functions for using the same validators on functions

exceptutil

logutil

shellutil

threadutil

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