lib_log_utils
Version v1.4.15 as of 2023-07-21 see Changelog
this library makes it easy to log colored messages from python and from the commandline. Text Wrapping is supported.
whenever possible, it tries to autodetect the correct settings for colored output.
currently the settings for TRAVIS and BINDER/Jupyter are detected automatically
automated tests, Github Actions, Documentation, Badges, etc. are managed with PizzaCutter (cookiecutter on steroids)
Python version required: 3.8.0 or newer
tested on recent linux with python 3.8, 3.9, 3.10, 3.11, 3.12-dev, pypy-3.9, pypy-3.10 - architectures: amd64
good code coverage, flake8 style checking ,mypy static type checking ,tested under Linux, macOS, Windows, automatic daily builds and monitoring
- Try it Online
- Usage
- Usage from Commandline
- Installation and Upgrade
- Requirements
- Acknowledgements
- Contribute
- Report Issues
- Pull Request
- Code of Conduct
- License
- Changelog
Try it Online
You might try it right away in Jupyter Notebook by using the "launch binder" badge, or click here
Usage
Python
import the module and check the code - it is very easy and documented there
as soon as I have some time, this will be completed (help welcome)
Commandline
Usage:
log_util (-h | --version | --program_info)
log_util [Options] "<message>"
log_util "<message>" [Options]
Options:
-h, --help show help
--version show version
--program_info show Program Info
Arguments
- message
- the message to log
Options
option | description |
---|---|
-l --level <level> | the log level as number or predefined value, default = INFO |
-b --banner | log as banner |
-w --width <width> | the width of the message or the banner, if text wrap is used, default = 140 |
-s --silent <True|False> ** | disables the output if set to "True" (not case sensitive)**, default = False |
-q --quiet | disables the output (as flag), default = False |
-f --force | take precedence over environment settings, default = False |
--wrap --nowrap | use text wrap (this is the default value), default = True |
--traceback --no-traceback | show traceback on commandline error, default = False |
-e --extended | extended log format, default = plain |
-p --plain | plain log format, default = plain |
-c --colortest | color test |
**This makes it possible to silence messages elegantly in a shellscript:
#!/bin/bash
# disable deprecation messages
DEP_MSG_OFF="True"
...
...
log_util -l warning "some deprecation message" --silent=${DEP_MSG_OFF}
log_util -l info "another deprecation message" --silent=${DEP_MSG_OFF}
...
log levels
Text | Integer |
---|---|
NOTSET | 0 |
SPAM | 5 |
DEBUG | 10 |
VERBOSE | 15 |
INFO | 20 |
NOTICE | 25 |
WARNING | 30 |
SUCCESS | 35 |
ERROR | 40 |
CRITICAL | 50 |
Environment Settings
environment variable | function |
---|---|
LOG_UTIL_FMT | the log format - either "plain", "extended" or a custom formatting string, default = plain |
LOG_UTIL_LEVEL | the level of the logger, one of the predefined log levels, or "0" - "50", default = 0 |
LOG_UTIL_WIDTH | the banner width if text wrap is used, must be >="10", default = 140 |
LOG_UTIL_WRAP | if text wrap should be used, must be True or False (not case sensitive), default = True |
LOG_UTIL_QUIET | if the logger is used at all - must be True or False (not case sensitive), default = False |
COLOREDLOGS_LOG_FORMAT | as described in coloredlogs |
COLOREDLOGS_DATE_FORMAT | as described in coloredlogs |
COLOREDLOGS_FIELD_STYLES | as described in coloredlogs |
COLOREDLOGS_LEVEL_STYLES | as described in coloredlogs |
environment settings take precedence over commandline arguments, unless --force is passed to the commandline
EXAMPLES
# multi-line banner
log_util -l warning "Line1${IFS}Line2${IFS}Line3"
# only show log messages from level WARNING upwards
export LOG_UTIL_LEVEL=WARNING
log_util -l info "spam" # this is not shown
log_util -l error "ham" # this is shown
# reset the log_level to 0 (the default value)
unset LOG_UTIL_LEVEL
Usage from Commandline
Usage: log_util [OPTIONS] [MESSAGE] colored log messages and banners from commandline and python Options: --version Show the version and exit. -e, --extended extended log format -p, --plain plain log format -b, --banner log as banner -w, --width INTEGER wrap width, default=140 --wrap / --nowrap wrap text -s, --silent TEXT disable logging if "True" -q, --quiet disable logging as flag -f, --force take precedence over environment settings -l, --level TEXT log level as number or predefined Level --program_info get program info -c, --colortest color test --traceback / --no-traceback return traceback information on cli -h, --help Show this message and exit.
Installation and Upgrade
- Before You start, its highly recommended to update pip and setup tools:
python -m pip --upgrade pip python -m pip --upgrade setuptools
- to install the latest release from PyPi via pip (recommended):
python -m pip install --upgrade lib_log_utils
- to install the latest release from PyPi via pip, including test dependencies:
python -m pip install --upgrade lib_log_utils[test]
- to install the latest version from github via pip:
python -m pip install --upgrade git+https://github.com/bitranox/lib_log_utils.git
- include it into Your requirements.txt:
# Insert following line in Your requirements.txt: # for the latest Release on pypi: lib_log_utils # for the latest development version : lib_log_utils @ git+https://github.com/bitranox/lib_log_utils.git # to install and upgrade all modules mentioned in requirements.txt: python -m pip install --upgrade -r /<path>/requirements.txt
- to install the latest development version, including test dependencies from source code:
# cd ~ $ git clone https://github.com/bitranox/lib_log_utils.git $ cd lib_log_utils python -m pip install -e .[test]
- via makefile: makefiles are a very convenient way to install. Here we can do much more, like installing virtual environments, clean caches and so on.
# from Your shell's homedirectory:
$ git clone https://github.com/bitranox/lib_log_utils.git
$ cd lib_log_utils
# to run the tests:
$ make test
# to install the package
$ make install
# to clean the package
$ make clean
# uninstall the package
$ make uninstall
Requirements
following modules will be automatically installed :
## Project Requirements
click
coloredlogs
cli_exit_tools
lib_parameter
lib_platform
lib_programname
Acknowledgements
- special thanks to "uncle bob" Robert C. Martin, especially for his books on "clean code" and "clean architecture"
Contribute
I would love for you to fork and send me pull request for this project. - please Contribute
License
This software is licensed under the MIT license
---
Changelog
- new MAJOR version for incompatible API changes,
- new MINOR version for added functionality in a backwards compatible manner
- new PATCH version for backwards compatible bug fixes
v1.4.15
- 2023-07-21:
-
- require minimum python 3.8
- remove python 3.7 tests
- introduce PEP517 packaging standard
- introduce pyproject.toml build-system
- remove mypy.ini
- remove pytest.ini
- remove setup.cfg
- remove setup.py
- remove .bettercodehub.yml
- remove .travis.yml
- update black config
- clean ./tests/test_cli.py
- add codeql badge
- move 3rd_party_stubs outside the src directory to
./.3rd_party_stubs
- add pypy 3.10 tests
- add python 3.12-dev tests
v1.4.14.2
2022-06-02: update to github actions checkout@v3 and setup-python@v3
v1.4.14
2022-03-29: remedy mypy type error in lob_log_utils_cli
v1.4.13
- 2022-03-25:
-
- fix ValueError: underlying buffer has been detached on github Actions Windows
- implement github actions
- update documentation and tests
- list ./dist dir if existing
- fix requirements.txt
v1.4.10
- 2020-10-09: service release
-
- update travis build matrix for linux 3.9-dev
- update travis build matrix (paths) for windows 3.9 / 3.10
v1.4.9
- 2020-08-08: service release
-
- fix documentation
- fix travis
- deprecate pycodestyle
- implement flake8
v1.4.8
2020-08-01: fix doctests in windows
v1.4.7
2020-08-01: fix pypi deploy
v1.4.6
2020-07-31: fix travis build
v0.4.5
2020-07-29: fix environ.pop issue in doctest
v0.4.4
- 2020-07-29: feature release
-
- use the new pizzacutter template
v0.4.3
- 2020-07-27: feature release
-
- use cli_exit_tools
- add banner parameter, to temporary disable/enable banner
v0.4.2
2020-07-23: separate travis profile
v0.4.1
2020-07-23: change color profiles
v0.4.0
- 2020-07-23: feature release
-
- correct print_exception_traceback is stdout, stderr = None
- added formatting parameter, custom log formatter
v0.3.0
- 2020-07-22: feature release
-
- autodetect travis settings
- autodetect binder/jupyter settings
v0.2.0
- 2020-07-22: feature release
-
- log_exception_traceback and print_exception_traceback will also report stdout, stderr if present
v0.1.4
- 2020-07-17: feature release
-
- bump coverage
v0.1.3
- 2020-07-17: feature release
-
- comprehensive --colortest
- automatically select 8 colors profile for travis
v0.1.2
- 2020-07-16: feature release
-
- store settings in environment for commandline use
- cleanup
- release on pypi
- fix cli test
- enable traceback option on cli errors
- jupyter notebook
v0.1.1
- 2020-07-06: patch release
-
- new click cli
- use PizzaCutter Template
v0.0.2
development
v0.0.1
2019-09-03: Initial public release