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18.0: Process - Switch to a Calendar based versioning scheme. - Formally document our deprecation process as a minimum of 6 months of deprecation warnings. - Adopt and document NEWS fragment writing style. - Switch to releasing a new, non bug fix version of pip every 3 months. Deprecations and Removals - Remove the legacy format from pip list. - Dropped support for Python 3.3. - Remove support for cleaning up #egg fragment postfixes. - Remove the shim for the old get-pip.py location. For the past 2 years, it's only been redirecting users to use the newer https://bootstrap.pypa.io/get-pip.py location. Features - Introduce a new --prefer-binary flag, to prefer older wheels over newer source packages. - Improve autocompletion function on file name completion after options which have ``<file>``, ``<dir>`` or ``<path>`` as metavar. - Add support for installing PEP 518 build dependencies from source. - Improve status message when upgrade is skipped due to only-if-needed strategy. Bug Fixes - Update pip's self-check logic to not use a virtualenv specific file and honor cache-dir. - Remove compiled pyo files for wheel packages. - Speed up printing of newly installed package versions. - Restrict install time dependency warnings to directly-dependant packages. Warning about the entire package set has resulted in users getting confused as to why pip is printing these warnings. - Improve handling of PEP 518 build requirements: support environment markers and extras. - Remove username/password from log message when using index with basic auth. - Remove trailing os.sep from PATH directories to avoid false negatives. - Fix "pip wheel pip" being blocked by the "don't use pip to modify itself" check. - Disable pip's version check (and upgrade message) when installed by a different package manager. This works better with Linux distributions where pip's upgrade message may result in users running pip in a manner that modifies files that should be managed by the OS's package manager. - Check for file existence and unlink first when clobbering existing files during a wheel install. - Improve error message to be more specific when no files are found as listed in as listed in PKG-INFO. - Always read ``pyproject.toml`` as UTF-8. This fixes Unicode handling on Windows and Python 2. - Fix a crash that occurs when PATH not set, while generating script location warning. - Disallow packages with ``pyproject.toml`` files that have an empty build-system table. Vendored Libraries - Update CacheControl to 0.12.5. - Update certifi to 2018.4.16. - Update distro to 1.3.0. - Update idna to 2.7. - Update ipaddress to 1.0.22. - Update pkg_resources to 39.2.0 (via setuptools). - Update progress to 1.4. - Update pytoml to 0.1.16. - Update requests to 2.19.1. - Update urllib3 to 1.23. Improved Documentation - Document how to use pip with a proxy server. - Document that the output of pip show is in RFC-compliant mail header format. |
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