This project aims to create a single library for run-time initiation tasks that are often duplicated across many projects.
Project description
runtime-yolk
Requirements
- Python >= 3.7
Load your local .env
file to environ, load your application.ini which can be
environment specific, and setup basic logging behavior all with a single call.
Designed to be low effort, runtime-yolk works well in the initial entry point of
a project and doesn't add additional requires to downstream libraries.
-
Environment variables are loaded from the
.env
file, or specified source, directly toos.environ
. This allows other processes to pull directly from the environ and reduces library coupling. -
Configuration files are loaded as
ConfigParser
objects. The loading layers each consecutive file allowing flexible environment specific configs to be leveraged. A custom{{key}}
string interpolation is used when loading config files to allow environ vars to be injected into the config. If the requested key cannot be interpolated the literal value is kept instead of raising exceptions.%
is also safe for all api-token/key needs. -
Set logging levels and format initially from the configuration. Helper methods for creating a logger for the entry script, define logging level, or add
FileHandlers
make setup easier.
Installation
From github:
$ python -m pip install git+https://github.com/Preocts/runtime-yolk@#.#.#
Replace the #.#.#
with the desired version or @main
for the latest (unstable).
From pypi:
$ python -m pip install runtime-yolk
Usage Examples
Loading runtime setup manually
Loading runtime setup automatically
Setup of application.ini
The default configuration file looked for loading is application.ini
. This can be change on call of .load_config()
if desired. There are no required fields in the configuration file. However, a few will impact runtime-yolk
's behavior directly when present in the [DEFAULT]
section:
logging_level
: When set,.set_logging()
will use this logging levellogging_format
: Allow overriding the default logging format template used.- Default is
%(asctime)s - %(levelname)s - %(name)s - %(message)s
- Default is
environment
: When defined the value will be used to load additionalapplication-[environment].ini
configuration files. These can be chained however will break the loading loop on a file that has already been loaded.
Sample:
[DEFAULT]
logging_level = DEBUG
logging_format = %(asctime)s - %(levelname)s - %(name)s - %(message)s
environment = {{ENVIRONMENT}}
.env
file loading
.env
files are loaded with the expectation of key = value pairs. #
comments are allowed as well as blank lines.
Current format for the .env
file supports strings only and is parsed in
the following order:
- Each separate line is considered a new possible key/value set
- Each set is delimited by the first
=
found - Leading and trailing whitespace are removed
- Removes leading 'export ' prefix, case agnostic
- Matched leading/trailing single quotes or double quotes will be stripped from values (not keys).
Sample:
# OAuth token goes here, do not commit this Glenn
SAMPLE_TOKEN=somesecrettokenforuse
ENVIRONMENT=sandbox
Local developer installation
It is strongly recommended to use a virtual environment
(venv
) when working with python
projects. Leveraging a venv
will ensure the installed dependency files will
not impact other python projects or any system dependencies.
The following steps outline how to install this repo for local development. See the CONTRIBUTING.md file in the repo root for information on contributing to the repo.
Windows users: Depending on your python install you will use py
in place
of python
to create the venv
.
Linux/Mac users: Replace python
, if needed, with the appropriate call to
the desired version while creating the venv
. (e.g. python3
or python3.8
)
All users: Once inside an active venv
all systems should allow the use of
python
for command line instructions. This will ensure you are using the
venv
's python and not the system level python.
Installation steps
Clone this repo and enter root directory of repo:
$ git clone https://github.com/Preocts/runtime-yolk
$ cd runtime-yolk
Create the venv
:
$ python -m venv venv
Activate the venv
:
# Linux/Mac
$ . venv/bin/activate
# Windows
$ venv\Scripts\activate
The command prompt should now have a (venv)
prefix on it. python
will now
call the version of the interpreter used to create the venv
Install editable library and development requirements:
# Update pip and tools
$ python -m pip install --upgrade pip
# Install editable version of library
$ python -m pip install --editable .[dev]
Install pre-commit (see below for details):
$ pre-commit install
Misc Steps
Run pre-commit on all files:
$ pre-commit run --all-files
Run tests:
$ tox [-r] [-e py3x]
Build dist:
$ python -m pip install --upgrade build
$ python -m build
To deactivate (exit) the venv
:
$ deactivate
Note on flake8:
flake8
is included in the requirements-dev.txt
of the project. However it
disagrees with black
, the formatter of choice, on max-line-length and two
general linting errors. .pre-commit-config.yaml
is already configured to
ignore these. flake8
doesn't support pyproject.toml
so be sure to add the
following to the editor of choice as needed.
--ignore=W503,E203
--max-line-length=88
pre-commit
A framework for managing and maintaining multi-language pre-commit hooks.
This repo is setup with a .pre-commit-config.yaml
with the expectation that
any code submitted for review already passes all selected pre-commit checks.
pre-commit
is installed with the development requirements and runs seemlessly
with git
hooks.
Makefile
This repo has a Makefile with some quality of life scripts if the system
supports make
. Please note there are no checks for an active venv
in the
Makefile.
PHONY | Description |
---|---|
init |
Update pip to newest version |
install |
install the project |
install-dev |
install development/test requirements and project as editable install |
upgrade-dev |
update all dependencies, regenerate requirements.txt (disabled by default) |
coverage |
Runs tox -p . results to stdout, json, and html |
build-dist |
Build source distribution and wheel distribution |
clean |
Deletes build, tox, coverage, pytest, mypy, cache, and pyc artifacts |
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