CHANGELOG.md

Python Buildpack Changelog

170 (2020-05-19)

• Python 2.7.18, 3.5.9, 3.7.7 and 3.8.3 are now available (CPython).
• PyPy 2.7 and 3.6, version 7.3.1 are now available (Note: PyPy support is in beta)
• Docs: Fix explanation of runtime.txt generation when using pipenv
• Bugfix: Correctly detect Python version when using a python_version of 3.8 in Pipfile.lock

---

169 (2020-04-22)

• Add a Hatchet test for python 3.8.2
• Set Code Owners to @heroku/langauges
• Bugfix: Caching on subsequent redeploys
• Update tests to support latest version of Python

168 (2020-04-06)

• Doc: Update Readme with version numbers
• update Code Owners to include the Heroku Buildpack Maintainers team
• Deprecation warning: BUILD_WITH_GEO_LIBRARIES is now deprecated. See warning for details.
• Clean up build log output
• Update Python versions in README to match docs
• Django version detection fixed, link updated

167 (2020-03-26)

• Add failcase for cache busting
• Bugfix: Clearing pip dependencies

166 (2020-03-05)

• Correct ftp to https in vendored file
• Warn for Django 1.11 approaching EOL, provide link to roadmap

165 (2020-02-27)

• Python 3.8.2 now available.

164 (2020-02-20)

• Update requirements.txt builds to use Pip 20.0.2
• Download get-pip.py to tmpdir instead of root dir

163 (2019-12-23)

• New pythons released: Python 3.8.1, 3.7.6, 3.6.10 (CPython) Beta Release: Pypy 2.7 and 3.6, version 7.2.0

162 (2019-12-06)

• Bug fix: fragile sqlite3 install

161 (2019-12-2)

• Bug fix: Sqlite3 version bump

160 (2019-10-23)

• Bugfix: Pipenv no longer installs twice in CI

159 (2019-10-22)

• Python 2.7.17 now available on Heroku 18 and 16.

158 (2019-10-21)

• Python 3.7.5 and 3.8.0 now available on Heroku 18 and 16.
• Add support for Python 3.8 branch
• Sqlite3 Update:
  • Test Improvements
• Add support for staging binary testing

157 (2019-09-18)

• Typo fixes

156 (2019-09-12)

• Python 3.6.9 and 3.7.4 now available.

• Move get-pip utility to S3

• Build utility and documentation updates

• Bump Hatchet tests to point at new default python version.

155 (2019-08-22)

add docs and make target for heroku-18 bob builds

154 (2019-07-17)

Fix python 3.5.7 formula actually building 3.7.2

153 (2019-06-21)

Hotfix for broken heroku-16 deploys

152 (2019-04-04)

Python 3.7.3 now available.

151 (2019-03-21)

Python 3.5.7 and 3.4.10 now available on all Heroku stacks.

150 (2019-03-13)

Python 2.7.16 now available on all Heroku stacks.

149 (2019-03-04)

Hotfix for broken Cedar 14 deploys

148 (2019-02-21)

No user facing changes, improving internal metrics

147 (2019-02-07)

Python 3.7.2 and 3.6.8 now available on all Heroku stacks.

146 (2018-11-11)

Python 3.7.1, 3.6.7, 3.5.6 and 3.4.9 now available on all Heroku stacks.

145 (2018-11-08)

Testing and tooling expanded to better support new runtimes

144 (2018-10-10)

Switch to cautious upgrade for Pipenv install to ensure the pinned pip version is used with Pipenv

143 (2018-10-09)

Add support for detecting SLUGIFY_USES_TEXT_UNIDECODE, which is required to install Apache Airflow version 1.10 or higher.

142 (2018-10-08)

Improvements to Python install messaging

139, 140, 141

No user-facing changes, documenting for version clarity

138 (2018-08-01)

Use stack image SQLite3 instead of vendoring

137 (2018-07-17)

Prevent 3.7.0 from appearing as unsupported in buildpack messaging.

136 (2018-06-28)

Upgrade to 3.6.6 and support 3.7.0 on all runtimes.

135 (2018-05-29)

Upgrade Pipenv to v2018.5.18.

134 (2018-05-02)

Default to 3.6.5, bugfixes.

133

Fixes for Pip 10 release.

132

Improve pip installation, with the release of v9.0.2.

131

Fix bug with pip.

130

Better upgrade strategy for pip.

129

Don't upgrade pip (from v128).

128

Upgrade pip, pin to Pipenv v11.8.2.

127

Pin to Pipenv v11.7.1.

126

Bugfixes.

125

Bugfixes.

124

Update buildpack to automatically install [dev-packages] during Heroku CI Pipenv builds.

• Skip installs if Pipfile.lock hasn't changed, and uninstall stale dependencies with Pipenv.
• Set PYTHONPATH during collectstatic runs.
• No longer warn if there is no Procfile.
• Update Pipenv's "3.6" runtime specifier to point to "3.6.4".

123

Update gunicorn init.d script to allow overrides.

122

Update default Python to v3.6.4.

121

Update default Python to v3.6.3.

120

Use $ pipenv --deploy.

119

Improvements to Pipenv support, warning on unsupported Python versions.

• We now warn when a user is not using latest 2.x or 3.x Python.
• Heroku now supports [requires] python_full_version in addition to python_version.

118

Improvements to Pipenv support.

117

Bug fix.

116

Vendoring improvements.

• Geos libraries should work on Heroku-16 now.
• The libffi/libmemcached vendoring step is now skipped on Heroku-16 (since they are installed in the base image).

115

Revert a pull request.

• No longer using sub_env for pip install step.

114

• Bugfixes.

Blacklisting PYTHONHOME and PYTHONPATH for older apps. Upgrades to nltk support.

113

Updates to Pipenv support.

112

Bugfix.

• Fixed grep output bug.

111

Linting, bugfixes.

110

Update default Python to 3.6.2.

109

Update Default Python to 3.6.1, bugfixes.

• Fixed automatic pip uninstall of dependencies removed from requirements.txt.

108

Fix output for collectstatic step.

107

Bugfix for C dependency installation.

106

Don't install packages that could mess up packaging.

• The Python buildpack will automatically remove six, pyparsing, appdirs, setuptools, and distribute from a requirements.txt file now, as these packages are provided by the Python buildpack.

105

Improvements to output messaging.

104

General improvements.

• Fix for Heroku CI.
• Use pkg_resources to check if a distribution is installed instead of parsing requirements.txt. (#395)

103

Bug fixes and improvements.

• Fix for Pipenv.
• Fix for Heroku CI.
• Improve handling of WEB_CONCURRENCY when using multiple buildpacks.
• Adjust environment variables set during the build to more closely match those in the dyno environment (DYNO is now available, STACK is not).
• Restore the build cache prior to running bin/pre_compile.

102

Buildpack code cleanup.

• Improved messaging around NLTK.

101

Updated setuptools installation method.

• Improved pipenv support.

100

Preliminary pipenv support.

99

Cleanup.

98

Official NLTK support and other improvements.

• Support for nltk.txt file for declaring corpora to be downloaded.
• Leading zeros for auto-set WEB_CONCURRENCY.

97

Improved egg-link functionality.

96

Bugfix.

95

Improved output support.

v94

Improved support for PyPy.

v93

Improved support for PyPy.

v92

Improved cache functionality and fix egg-links regression.

v91

Bugfix, rolled back to v88.

v90

Bugfix.

v89

Improved cache functionality and fix egg-links regression.

v88

Fixed bug with editable pip installations.

v87

Updated default Python 2.7.13.

• Python 2.7.13 uses UCS-4 build, more compatibile with linux wheels.
• Updated setuptools to v32.1.0.

v86

Refactor and multi-buildpack compatibility.

v85

Packaging fix.

v84

Updated pip and setuptools.

• Updated pip to v9.0.1.
• Updated setuptools to v28.8.0.

v83

Support for Heroku CI.

• Cffi support for argon2

v82 (2016-08-22)

Update to library detection mechnisms (pip-pop).

• Updated setuptools to v25.5.0

v81 (2016-06-28)

Updated default Python to 2.7.11.

• Updated pip to v8.1.2.
• Updated setuptools to v23.1.0.

v80 (2016-04-05)

Improved pip-pop compatibility with latest pip releases.

v79 (2016-03-22)

Compatibility improvements with heroku-apt-buildpack.

v78 (2016-03-18)

Added automatic configuration of Gunicorn's FORWARDED_ALLOW_IPS setting.

Improved detection of libffi dependency when using bcrypt via Django[bcrypt].

Improved GDAL support.

• GDAL dependency detection now checks for pygdal and is case-insensitive.
• The vendored GDAL library has been updated to 1.11.1.
• GDAL bootstrapping now also installs the GEOS and Proj.4 libraries.

Updated pip to 8.1.1 and setuptools to 20.3.

v77 (2016-02-10)

Improvements to warnings and minor bugfix.

v76 (2016-02-08)

Improved Django collectstatic support.

• $ python manage.py collectstatic will only be run if Django is present in requirements.txt.
• If collectstatic fails, the build fails. Full traceback is provided.
• $DISABLE_COLLECTSTATIC: skip collectstatic step completely (not new).
• $DEBUG_COLLECTSTATIC: echo environment variables upon collectstatic failure.
• Updated build output style.
• New warning for outdated Python (via pip InsecurePlatform warning).

v75 (2016-01-29)

Updated pip and Setuptools.

v74 (2015-12-29)

Added warnings for lack of Procfile.

v72 (2015-12-07)

Updated default Python to 2.7.11.

v72 (2015-12-03)

Added friendly warnings for common build failures.

v70 (2015-10-29)

Improved compatibility with multi and node.js buildpacks.

v69 (2015-10-12)

Revert to v66.

v68 (2015-10-12)

Fixed .heroku/venv error with modern apps.

v67 (2015-10-12)

Further improved cache compatibility with multi and node.js buildpacks.

v66 (2015-10-09)

Improved compatibility with multi and node.js buildpacks.

v65 (2015-10-08)

Reverted v64.

v64 (2015-10-08)

Improved compatibility with multi and node.js buildpacks.

v63 (2015-10-08)

Updated Pip and Setuptools.

• Setuptools updated to v18.3.2
• Pip updated to v7.1.2

v62 (2015-08-07)

Updated Pip and Setuptools.

• Setuptools updated to v18.1
• Pip updated to v7.1.0

v61 (2015-06-30)

Updated Pip and Setuptools.

• Setuptools updated to v18.0.1
• Pip updated to v7.0.3

v60 (2015-05-27)

Default Python is now latest 2.7.10. Updated Pip and Distribute.

• Default Python version is v2.7.10
• Setuptools updated to v16.0
• Pip updated to v7.0.1