mirror of
https://github.com/Hopiu/django-cachalot.git
synced 2026-05-20 10:21:51 +00:00
Updated README, new maintainer
* Added Django 3.0 support to avoid conflicts when pip installing * README shows cache comparisons and usage time * Travis updated * gitignore updated from GitHub's main page
This commit is contained in:
Andrew-Chen-Wang
parent
3769c9a646
commit
aced88edb7
6 changed files with 255 additions and 14 deletions
121
.gitignore
vendored
121
.gitignore
vendored
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@ -1,10 +1,125 @@
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# Byte-compiled / optimized / DLL files
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__pycache__/
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*.pyc
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*.py[cod]
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||||
*$py.class
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||||
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# C extensions
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||||
*.so
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||||
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||||
# Distribution / packaging
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||||
.Python
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build/
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develop-eggs/
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dist/
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||||
downloads/
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eggs/
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.eggs/
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lib/
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lib64/
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||||
parts/
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||||
sdist/
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||||
var/
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||||
wheels/
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||||
pip-wheel-metadata/
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||||
share/python-wheels/
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*.egg-info/
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.coverage
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docs/_*/
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.installed.cfg
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*.egg
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MANIFEST
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||||
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||||
# PyInstaller
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||||
# Usually these files are written by a python script from a template
|
||||
# before PyInstaller builds the exe, so as to inject date/other infos into it.
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||||
*.manifest
|
||||
*.spec
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||||
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||||
# Installer logs
|
||||
pip-log.txt
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||||
pip-delete-this-directory.txt
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||||
|
||||
# Unit test / coverage reports
|
||||
htmlcov/
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||||
.tox/
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||||
.nox/
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||||
.coverage
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||||
.coverage.*
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||||
.cache
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||||
nosetests.xml
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||||
coverage.xml
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||||
*.cover
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||||
.hypothesis/
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||||
.pytest_cache/
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||||
|
||||
# Translations
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||||
*.mo
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||||
*.pot
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||||
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||||
# Django stuff:
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||||
*.log
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||||
local_settings.py
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||||
db.sqlite3
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||||
db.sqlite3-journal
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||||
.idea/
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||||
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||||
# Flask stuff:
|
||||
instance/
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||||
.webassets-cache
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||||
|
||||
# Scrapy stuff:
|
||||
.scrapy
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||||
|
||||
# Sphinx documentation
|
||||
docs/_build/
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||||
|
||||
# PyBuilder
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||||
target/
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||||
|
||||
# Jupyter Notebook
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||||
.ipynb_checkpoints
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||||
|
||||
# IPython
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||||
profile_default/
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||||
ipython_config.py
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||||
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# pyenv
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.python-version
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# pipenv
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# According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
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||||
# However, in case of collaboration, if having platform-specific dependencies or dependencies
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||||
# having no cross-platform support, pipenv may install dependencies that don't work, or not
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||||
# install all needed dependencies.
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#Pipfile.lock
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||||
|
||||
# celery beat schedule file
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||||
celerybeat-schedule
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||||
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||||
# SageMath parsed files
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||||
*.sage.py
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||||
|
||||
# Environments
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||||
.env
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||||
.venv
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||||
env/
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venv/
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ENV/
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||||
env.bak/
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||||
venv.bak/
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||||
|
||||
# Spyder project settings
|
||||
.spyderproject
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||||
.spyproject
|
||||
|
||||
# Rope project settings
|
||||
.ropeproject
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||||
|
||||
# mkdocs documentation
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||||
/site
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||||
|
||||
# mypy
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.mypy_cache/
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.dmypy.json
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dmypy.json
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# Pyre type checker
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.pyre/
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|
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96
.travis.yml
96
.travis.yml
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@ -21,6 +21,7 @@ matrix:
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env: TOXENV=py2.7-django1.11-sqlite3-locmem
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- python: 2.7
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env: TOXENV=py2.7-django1.11-sqlite3-filebased
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- python: 2.7
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env: TOXENV=py2.7-django1.11-postgresql-redis
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- python: 2.7
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@ -31,6 +32,7 @@ matrix:
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env: TOXENV=py2.7-django1.11-postgresql-locmem
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- python: 2.7
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env: TOXENV=py2.7-django1.11-postgresql-filebased
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- python: 2.7
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env: TOXENV=py2.7-django1.11-mysql-redis
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- python: 2.7
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@ -41,6 +43,7 @@ matrix:
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env: TOXENV=py2.7-django1.11-mysql-locmem
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- python: 2.7
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env: TOXENV=py2.7-django1.11-mysql-filebased
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- python: 3.4
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env: TOXENV=py3.4-django1.11-sqlite3-redis
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- python: 3.4
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@ -51,6 +54,7 @@ matrix:
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env: TOXENV=py3.4-django1.11-sqlite3-locmem
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- python: 3.4
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env: TOXENV=py3.4-django1.11-sqlite3-filebased
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- python: 3.4
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env: TOXENV=py3.4-django1.11-postgresql-redis
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- python: 3.4
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@ -61,6 +65,7 @@ matrix:
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env: TOXENV=py3.4-django1.11-postgresql-locmem
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- python: 3.4
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env: TOXENV=py3.4-django1.11-postgresql-filebased
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- python: 3.4
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env: TOXENV=py3.4-django1.11-mysql-redis
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- python: 3.4
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@ -71,6 +76,7 @@ matrix:
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env: TOXENV=py3.4-django1.11-mysql-locmem
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- python: 3.4
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env: TOXENV=py3.4-django1.11-mysql-filebased
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- python: 3.5
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env: TOXENV=py3.5-django1.11-sqlite3-redis
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- python: 3.5
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@ -81,6 +87,7 @@ matrix:
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env: TOXENV=py3.5-django1.11-sqlite3-locmem
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- python: 3.5
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env: TOXENV=py3.5-django1.11-sqlite3-filebased
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- python: 3.5
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env: TOXENV=py3.5-django1.11-postgresql-redis
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- python: 3.5
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@ -91,6 +98,7 @@ matrix:
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env: TOXENV=py3.5-django1.11-postgresql-locmem
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- python: 3.5
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env: TOXENV=py3.5-django1.11-postgresql-filebased
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- python: 3.5
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env: TOXENV=py3.5-django1.11-mysql-redis
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- python: 3.5
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@ -101,6 +109,7 @@ matrix:
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env: TOXENV=py3.5-django1.11-mysql-locmem
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- python: 3.5
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env: TOXENV=py3.5-django1.11-mysql-filebased
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- python: 3.6
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env: TOXENV=py3.6-django1.11-sqlite3-redis
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- python: 3.6
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@ -111,6 +120,7 @@ matrix:
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env: TOXENV=py3.6-django1.11-sqlite3-locmem
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- python: 3.6
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env: TOXENV=py3.6-django1.11-sqlite3-filebased
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- python: 3.6
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env: TOXENV=py3.6-django1.11-postgresql-redis
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- python: 3.6
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@ -121,6 +131,7 @@ matrix:
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env: TOXENV=py3.6-django1.11-postgresql-locmem
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- python: 3.6
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env: TOXENV=py3.6-django1.11-postgresql-filebased
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- python: 3.6
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env: TOXENV=py3.6-django1.11-mysql-redis
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- python: 3.6
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@ -131,6 +142,7 @@ matrix:
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env: TOXENV=py3.6-django1.11-mysql-locmem
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- python: 3.6
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env: TOXENV=py3.6-django1.11-mysql-filebased
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- python: 3.4
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env: TOXENV=py3.4-django2.0-sqlite3-redis
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- python: 3.4
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@ -141,6 +153,7 @@ matrix:
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env: TOXENV=py3.4-django2.0-sqlite3-locmem
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- python: 3.4
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env: TOXENV=py3.4-django2.0-sqlite3-filebased
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- python: 3.4
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env: TOXENV=py3.4-django2.0-postgresql-redis
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- python: 3.4
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@ -151,6 +164,7 @@ matrix:
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env: TOXENV=py3.4-django2.0-postgresql-locmem
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- python: 3.4
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env: TOXENV=py3.4-django2.0-postgresql-filebased
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- python: 3.4
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env: TOXENV=py3.4-django2.0-mysql-redis
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- python: 3.4
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@ -161,6 +175,7 @@ matrix:
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env: TOXENV=py3.4-django2.0-mysql-locmem
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- python: 3.4
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env: TOXENV=py3.4-django2.0-mysql-filebased
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- python: 3.5
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env: TOXENV=py3.5-django2.0-sqlite3-redis
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- python: 3.5
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@ -171,6 +186,7 @@ matrix:
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env: TOXENV=py3.5-django2.0-sqlite3-locmem
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- python: 3.5
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env: TOXENV=py3.5-django2.0-sqlite3-filebased
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- python: 3.5
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env: TOXENV=py3.5-django2.0-postgresql-redis
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- python: 3.5
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@ -181,6 +197,7 @@ matrix:
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env: TOXENV=py3.5-django2.0-postgresql-locmem
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- python: 3.5
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env: TOXENV=py3.5-django2.0-postgresql-filebased
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- python: 3.5
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env: TOXENV=py3.5-django2.0-mysql-redis
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- python: 3.5
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@ -191,6 +208,7 @@ matrix:
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env: TOXENV=py3.5-django2.0-mysql-locmem
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- python: 3.5
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env: TOXENV=py3.5-django2.0-mysql-filebased
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- python: 3.6
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env: TOXENV=py3.6-django2.0-sqlite3-redis
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- python: 3.6
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env: TOXENV=py3.6-django2.0-sqlite3-locmem
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- python: 3.6
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env: TOXENV=py3.6-django2.0-sqlite3-filebased
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- python: 3.6
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env: TOXENV=py3.6-django2.0-postgresql-redis
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- python: 3.6
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@ -211,6 +230,7 @@ matrix:
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env: TOXENV=py3.6-django2.0-postgresql-locmem
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- python: 3.6
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env: TOXENV=py3.6-django2.0-postgresql-filebased
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- python: 3.6
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env: TOXENV=py3.6-django2.0-mysql-redis
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- python: 3.6
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env: TOXENV=py3.6-django2.0-mysql-locmem
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- python: 3.6
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env: TOXENV=py3.6-django2.0-mysql-filebased
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- python: 3.5
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env: TOXENV=py3.5-django2.1-sqlite3-redis
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- python: 3.5
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@ -231,6 +252,7 @@ matrix:
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env: TOXENV=py3.5-django2.1-sqlite3-locmem
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- python: 3.5
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env: TOXENV=py3.5-django2.1-sqlite3-filebased
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- python: 3.5
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env: TOXENV=py3.5-django2.1-postgresql-redis
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- python: 3.5
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@ -241,6 +263,7 @@ matrix:
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env: TOXENV=py3.5-django2.1-postgresql-locmem
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- python: 3.5
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env: TOXENV=py3.5-django2.1-postgresql-filebased
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- python: 3.5
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env: TOXENV=py3.5-django2.1-mysql-redis
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- python: 3.5
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env: TOXENV=py3.5-django2.1-mysql-locmem
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- python: 3.5
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env: TOXENV=py3.5-django2.1-mysql-filebased
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- python: 3.6
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env: TOXENV=py3.6-django2.1-sqlite3-redis
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- python: 3.6
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@ -261,6 +285,7 @@ matrix:
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env: TOXENV=py3.6-django2.1-sqlite3-locmem
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- python: 3.6
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env: TOXENV=py3.6-django2.1-sqlite3-filebased
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- python: 3.6
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env: TOXENV=py3.6-django2.1-postgresql-redis
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- python: 3.6
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env: TOXENV=py3.6-django2.1-postgresql-locmem
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- python: 3.6
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env: TOXENV=py3.6-django2.1-postgresql-filebased
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- python: 3.6
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env: TOXENV=py3.6-django2.1-mysql-redis
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- python: 3.6
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env: TOXENV=py3.6-django2.1-mysql-locmem
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- python: 3.6
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env: TOXENV=py3.6-django2.1-mysql-filebased
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- python: 3.6
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env: TOXENV=py3.6-django2.2-sqlite3-redis
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- python: 3.6
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env: TOXENV=py3.6-django2.2-sqlite3-memcached
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- python: 3.6
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env: TOXENV=py3.6-django2.2-sqlite3-pylibmc
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- python: 3.6
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env: TOXENV=py3.6-django2.2-sqlite3-locmem
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- python: 3.6
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env: TOXENV=py3.6-django2.2-sqlite3-filebased
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- python: 3.6
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env: TOXENV=py3.6-django2.2-postgresql-redis
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- python: 3.6
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env: TOXENV=py3.6-django2.2-postgresql-memcached
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- python: 3.6
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env: TOXENV=py3.6-django2.2-postgresql-pylibmc
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- python: 3.6
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env: TOXENV=py3.6-django2.2-postgresql-locmem
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- python: 3.6
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env: TOXENV=py3.6-django2.2-postgresql-filebased
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- python: 3.6
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env: TOXENV=py3.6-django2.2-mysql-redis
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- python: 3.6
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env: TOXENV=py3.6-django2.2-mysql-memcached
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- python: 3.6
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env: TOXENV=py3.6-django2.2-mysql-pylibmc
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- python: 3.6
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env: TOXENV=py3.6-django2.2-mysql-locmem
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- python: 3.6
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env: TOXENV=py3.6-django2.2-mysql-filebased
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- python: 3.7
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env: TOXENV=py3.7-django2.1-sqlite3-redis
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- python: 3.7
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env: TOXENV=py3.7-django2.1-sqlite3-locmem
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- python: 3.7
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env: TOXENV=py3.7-django2.1-sqlite3-filebased
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- python: 3.7
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env: TOXENV=py3.7-django2.1-postgresql-redis
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- python: 3.7
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env: TOXENV=py3.7-django2.1-postgresql-locmem
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- python: 3.7
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env: TOXENV=py3.7-django2.1-postgresql-filebased
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- python: 3.7
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env: TOXENV=py3.7-django2.1-mysql-redis
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- python: 3.7
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env: TOXENV=py3.7-django2.1-mysql-locmem
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- python: 3.7
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env: TOXENV=py3.7-django2.1-mysql-filebased
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- python: 3.7
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env: TOXENV=py3.7-django2.2-sqlite3-redis
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- python: 3.7
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env: TOXENV=py3.7-django2.2-sqlite3-memcached
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- python: 3.7
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env: TOXENV=py3.7-django2.2-sqlite3-pylibmc
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- python: 3.7
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env: TOXENV=py3.7-django2.2-sqlite3-locmem
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- python: 3.7
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env: TOXENV=py3.7-django2.2-sqlite3-filebased
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- python: 3.7
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env: TOXENV=py3.7-django2.2-postgresql-redis
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- python: 3.7
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env: TOXENV=py3.7-django2.2-postgresql-memcached
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- python: 3.7
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env: TOXENV=py3.7-django2.2-postgresql-pylibmc
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- python: 3.7
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env: TOXENV=py3.7-django2.2-postgresql-locmem
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- python: 3.7
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env: TOXENV=py3.7-django2.2-postgresql-filebased
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- python: 3.7
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env: TOXENV=py3.7-django2.2-mysql-redis
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- python: 3.7
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env: TOXENV=py3.7-django2.2-mysql-memcached
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- python: 3.7
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env: TOXENV=py3.7-django2.2-mysql-pylibmc
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- python: 3.7
|
||||
env: TOXENV=py3.7-django2.2-mysql-locmem
|
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- python: 3.7
|
||||
env: TOXENV=py3.7-django2.2-mysql-filebased
|
||||
|
||||
allow_failures:
|
||||
- env: TOXENV=py3.7-django2.1-sqlite3-redis
|
||||
- env: TOXENV=py3.7-django2.1-sqlite3-memcached
|
||||
|
|
|
|||
43
README.rst
43
README.rst
|
|
@ -1,10 +1,12 @@
|
|||
**WARNING: This project is in need of a new maintainer.** NoriPyt and its developer Bertrand Bordage no longer use it and therefore don’t have time to develop it.
|
||||
**New Maintainer**: `Andrew Chen Wang`_ is a new maintainer of this repo. Bordage is still the admin but will most likely be inactive.
|
||||
|
||||
Django-cachalot
|
||||
Django Cachalot
|
||||
===============
|
||||
|
||||
Caches your Django ORM queries and automatically invalidates them.
|
||||
|
||||
Documentation: http://django-cachalot.readthedocs.io
|
||||
|
||||
.. image:: https://raw.github.com/noripyt/django-cachalot/master/django-cachalot.jpg
|
||||
|
||||
----
|
||||
|
|
@ -21,17 +23,42 @@ Caches your Django ORM queries and automatically invalidates them.
|
|||
.. image:: http://img.shields.io/scrutinizer/g/noripyt/django-cachalot/master.svg?style=flat-square&maxAge=3600
|
||||
:target: https://scrutinizer-ci.com/g/noripyt/django-cachalot/
|
||||
|
||||
.. image:: https://img.shields.io/gitter/room/django-cachalot/Lobby.svg?style=flat-square&maxAge=3600
|
||||
:target: https://gitter.im/django-cachalot/Lobby
|
||||
.. image:: https://img.shields.io/badge/cachalot-Chat%20on%20Slack-green?style=flat&logo=slack
|
||||
:target: https://join.slack.com/t/cachalotdjango/shared_invite/enQtOTMyNzI0NTQzOTA3LWViYmYwMWY3MmU0OTZkYmNiMjBhN2NjNjc4OWVlZDNiMjMxN2Y3YzljYmNiYTY4ZTRjOGQxZDRiMTM0NWE3NGI
|
||||
|
||||
Third-Party Cache Comparison
|
||||
----------------------------
|
||||
|
||||
Documentation
|
||||
-------------
|
||||
There are three main third party caches: cachalot, cache-machine, and cache-ops. Which do you use? We suggest a mix:
|
||||
|
||||
Available `on Read The Docs <http://django-cachalot.readthedocs.io>`_.
|
||||
TL;DR Use cachalot for cold or accessed <50 times per minutes (Most people should stick with only cachalot since you
|
||||
most likely won't need to scale to the point of needing cache-machine added to the bowl). If you're an enterprise that
|
||||
already has huge statistics, then mixing cold caches for cachalot and your hot caches with cache-machine is the best
|
||||
mix.
|
||||
|
||||
Recall, cachalot caches THE ENTIRE TABLE. That's where its inefficiency stems from: if you keep updating the records,
|
||||
then the cachalot constantly invalidates the table and re-caches. Luckily caching is very efficient, it's just the cache
|
||||
invalidation part that kills all our systems. Look at Note 1 below to see how Reddit deals with it.
|
||||
|
||||
Cachalot is more-or-less intended for cold caches or "just-right" conditions. If you find a partition library for
|
||||
Django (also authored but work-in-progress by `Andrew Chen Wang`_), then the caching will work better since sharding
|
||||
the cold/accessed-the-least records aren't invalidated as much.
|
||||
|
||||
Cachalot is good when there are <50 updates per minute on a hot cached table. This is mostly due to cache invalidation. It's the same with any cache,
|
||||
which is why we suggest you use cache-machine for hot caches. Cache-machine caches individual objects, taking up more in the memory store but
|
||||
invalidates those individual objects instead of the entire table like cachalot.
|
||||
|
||||
Yes, the bane of our entire existence lies in cache invalidation and naming variables. Why does cachalot suck when stuck with a huge table that's accessed rapidly? Since you've mixed your cold (90% of) with your hot (10% of) records, you're caching and invalidating an entire table. It's like trying to boil 1 ton of noodles inside ONE pot instead of 100 pots boiling 1 ton of noodles. Which is more efficient? The splitting up of them.
|
||||
|
||||
Note 1: My personal experience with caches stems from Reddit's: https://redditblog.com/2017/01/17/caching-at-reddit/
|
||||
|
||||
Note 2: Technical comparison: https://django-cachalot.readthedocs.io/en/latest/introduction.html#comparison-with-similar-tools
|
||||
|
||||
Discussion
|
||||
----------
|
||||
|
||||
On `our public gitter chat room <https://gitter.im/django-cachalot/Lobby>`_.
|
||||
Help? Technical chat? `It's here on Slack <https://join.slack.com/t/cachalotdjango/shared_invite/enQtOTMyNzI0NTQzOTA3LWViYmYwMWY3MmU0OTZkYmNiMjBhN2NjNjc4OWVlZDNiMjMxN2Y3YzljYmNiYTY4ZTRjOGQxZDRiMTM0NWE3NGI>`_.
|
||||
|
||||
Legacy chat: https://gitter.im/django-cachalot/Lobby
|
||||
|
||||
.. _Andrew Chen Wang: https://github.com/Andrew-Chen-Wang
|
||||
|
|
@ -13,7 +13,7 @@ from .settings import (
|
|||
|
||||
@register(Tags.compatibility)
|
||||
def check_django_version(app_configs, **kwargs):
|
||||
if not (1, 11) <= django_version < (2, 2):
|
||||
if not (1, 11) <= django_version < (3, 1):
|
||||
return [Error(
|
||||
'Django %s is not compatible with this version of django-cachalot.'
|
||||
% django__version__,
|
||||
|
|
|
|||
|
|
@ -12,7 +12,7 @@ from django.db import connections
|
|||
from django.db.models import QuerySet, Subquery, Exists
|
||||
from django.db.models.functions import Now
|
||||
from django.db.models.sql import Query, AggregateQuery
|
||||
from django.db.models.sql.where import ExtraWhere, WhereNode
|
||||
from django.db.models.sql.where import ExtraWhere, WhereNode, NothingNode
|
||||
from django.utils.six import text_type, binary_type, integer_types
|
||||
|
||||
from .settings import ITERABLES, cachalot_settings
|
||||
|
|
@ -108,6 +108,8 @@ def _find_subqueries_in_where(children):
|
|||
yield grand_child
|
||||
elif child_class is ExtraWhere:
|
||||
raise IsRawQuery
|
||||
elif child_class is NothingNode:
|
||||
pass
|
||||
else:
|
||||
rhs = child.rhs
|
||||
rhs_class = rhs.__class__
|
||||
|
|
|
|||
|
|
@ -1 +1,2 @@
|
|||
Django>=1.11,<2.2
|
||||
Django>=1.11,<3.1
|
||||
tox==3.14.3
|
||||
Loading…
Reference in a new issue