CHANGELOG.md

Changelog

shed uses calendar versioning, with a year.month.patch scheme.

2025.6.1 - 2025-06-05

• Improve performance in large repositories, by skipping directories that start with . during an internal check.

2024.10.1 - 2024-04-27

• Disable PIE790 fix due to ruff issue #10538
• Python 3.8 has reached end-of-life, so shed targets and runs on Python 3.9 or later.

2024.3.1 - 2024-03-13

• Replace usage of Autoflake, PyUpgrade and isort with ruff.

2024.1.1 - 2024-01-26

• Require black >= 24.1.0, with their updated code style

2023.6.1 - 2023-06-29

• Python 3.7 has reached end-of-life, so shed targets and runs on Python 3.8 or later.
• Clarify error when missing target file looks like an unexpanded glob pattern.

2023.5.2 - 2023-05-26

• Require latest versions of black and libcst for bugfixes and perf improvements

2023.5.1 - 2023-05-01

• shed --refactor now merges nested with-statements for Python 3.9+
• Skip LibCST passes when it (correctly) objects to invalid code accepted by Black

2023.4.1 - 2023-04-19

• Fixed some crash and incorrect-output bugs in shed --refactor

2023.3.1 - 2023-03-05

• Fixed cases where shed took two passes to handle unordered and removable imports
• Fixed cases where --refactor was making unintended semantic changes

2023.2.1 - 2023-02-27

• Switch to calendar versioning to match underlying tools
• Fixed cases where --refactor could delete comments in parens
• --refactor replaces some calls to list(), tuple() and dict() builtins with literals

0.10.9 - 2023-02-01

• Require Black >= 23.1.0 for latest code style

0.10.8 - 2022-12-10

• Reformat .pyi files too

0.10.7 - 2022-11-05

• Fixed --refactor to avoid incorrect changes to e.g. x = y or len(z)
• --refactor also removes redundant calls to bool() in boolean contexts.

0.10.6 - 2022-11-03

• --refactor now splits assert a and b [and c and ...] into a separate assertion for each clause, so that it's always clear which (if any) failed.
• --refactor removes redundant calls to len() in boolean contexts.

0.10.5 - 2022-10-08

• Preserve trailing commas in literals in --refactor mode
• --refactor mode now flattens Optional[Union[...]] to Union[..., None]
• Don't convert == to is in subscripts, to save e.g. df[df.flag == True]

0.10.4 - 2022-10-04

• Updated for compatibility with new pyupgrade==3.0.0

0.10.3 - 2022-09-10

• Fix a crash when used with Python 3.10 pattern matching
• Fix a bug where the minimum-version argument was sometimes ignored
• Clarified some error messages for easier debugging

0.10.2 - 2022-09-05

• Require latest version of Black to detect that f"{x=}" requires Python 3.8+ (and remove previous workaround)
• Fixed detection of Hypothesis codemods in --refactor mode

0.10.1 - 2022-06-06

• Handle non-locale-encoded files, such as UTF-8 on Windows (#42)
• Preserve comments on the last element of Literal types with --refactor

0.10.0 - 2022-05-22

• When finding files in a git repo, search from root not current directory
• Keep else: pass blocks if they contain any comments
• Leave Optional[Literal[...]] alone too
• Merge isinstance(x, y) or isinstance(x, z) to isinstance(x, (y, z))

0.9.7 - 2022-05-15

• Dropped teyit because pyupgrade now handles deprecated unittest methods
• Don't merge None into Literal types; it's easier to read | None
• Avoid crashing on some rare and questionable code patterns
• With --refactor, remove else: pass blocks
• With --refactor, "unwrap" lambdas - e.g. lambda x: sorted(x) -> sorted

0.9.6 - 2022-05-12

• Several new custom refactoring passes (#37, #38, #39, #40)

0.9.5 - 2022-04-12

• Supports (and requires) new version of pyupgrade

0.9.4 - 2022-03-16

• Performance optimizations, reducing startup latency via deferred imports

0.9.3 - 2022-03-14

• Fixed an internal error on # isort: skip_file (#32)

0.9.2 - 2022-03-05

• Fixed a crash with --refactor on files containing f"{...=}" (#31)

0.9.1 - 2022-02-15

• Fixed __init__.py-based detection heuristic for first-party module names
• Avoid guessing that stdlib modules are first-party due to e.g. a code/ directory

0.9.0 - 2022-02-01

• Require a stable version of Black, which now has a formatting stability policy
• Suppress stderr messages from Git when used outside a repository

0.8.0 - 2022-01-16

• Updated minimum dependency versions - bugfixes and improved support for Python 3.9+
• Avoid importing Hypothesis if it's not going to be used (#26)

0.7.0 - 2021-12-23

• Python 3.6 is end-of-life, so format code as 3.7+

0.6.0 - 2021-12-16

• Codemods to fix most warnings from flake8-comprehensions, in --refactor mode
• Moves all libCST fixers to --refactor mode for speed

0.5.3 - 2021-10-12

• Fix an internal error on files with lambdas containing positional-only arguments which were not detected as requiring Python 3.8
• Fix an internal error on files with 'fluent interface' call chains (introduced in 0.5.2)

0.5.2 - 2021-10-11

• Fix latent bugs around min-version handling with Black and LibCST
• Fix a rare crash with --refactor where com2ann could fail to parse input

0.5.1 - 2021-10-05

• Continue in a single process if os.fork() fails with BlockingIOError

0.5.0 - 2021-10-03

• Stop removing "unused" imports in code blocks; often they're used in later blocks
• Use custom LibCST refactoring passes instead of pybetter; because these are faster they're also enabled outside of --refactor mode
• Replace raise NotImplemented with raise NotImplementedError
• Replace assert False [, msg] with raise AssertionError [(msg)], for all falsey literals, to avoid surprising behaviour with PYTHONOPTIMIZE (use if __debug__ if you need such behaviour)
• Remove assert True, or other truthy literals, which can never fail

0.4.2 - 2021-09-16

• Warn on invalid syntax, and try to format docstrings anyway (#23)

0.4.1 - 2021-09-15

• Skip files or code-blocks with invalid syntax (#23)

0.4.0 - 2021-09-15

• Add new --py-37-plus (etc) arguments to select the minimum Python version
• disable autoflake's remove-unused-variables; allow linters to warn about probable bugs

0.3.10 - 2021-08-21

• require latest versions of all dependencies; variously fixing some upstream bugs, avoiding installation problems, and adding some refactoring features.

0.3.9 - 2021-08-18

• Fix the other FileNotFoundError on Windows, if git is not installed.

0.3.8 - 2021-08-11

• Fix a FileNotFoundError on Windows, if git is not installed.

0.3.7 - 2021-07-14

• require black >= 21.6b0
• support, and require, pyupgrade >= 2.21

0.3.6 - 2021-05-23

• leave empty files empty, instead of adding a blank line (which triggered flake8 W391)

0.3.5 - 2021-05-05

• require black >= 21.5b0 to avoid version-detection bug

0.3.4 - 2021-04-12

• avoid new duplicate work when running shed (without python -m)

0.3.3 - 2021-03-18

• support running via python -m shed
• stop merging nested with-statements (ugly when multiline on Python <= 3.9)

0.3.2 - 2021-02-01

• support, and require, pyupgrade >= 2.8.0

0.3.1 - 2021-01-28

• sort tests imports as a known_local_folder with isort
• increase minimum dependency versions

0.3.0 - 2021-01-12

• integrates hypothesis codemod in --refactor mode (optional dependency)
• improved reporting for internal errors
• work around known errors in pybetter and libcst

0.2.5 - 2020-12-10

• supports Python-3.9-only files
• improved idempotence in --refactor mode with Teyit

0.2.4 - 2020-08-28

• requires newer dependencies - black 20.8b1 or later, autoflake 1.4 or later

0.2.3 - 2020-08-17

• add com2ann to --refactor on Python 3.8+

0.2.2 - 2020-08-14

• use multiple processes if formatting many files (ncpus times faster!)

0.2.1 - 2020-08-13

• drop docformatter due to poor performance
• reorganise remaining passes for speed and split out --refactor passes

0.2.0 - 2020-08-12

• use pybetter codemods
• use teyit to replace deprecated unittest methods with the new aliases (if running on Python 3.9+)
• use docformatter to format docstrings
• new logic inspired by blacken-docs to format code in docstrings, via the new shed.docshed function

0.1.3 - 2020-08-12

• detect first-party imports in single-file mode as well as all-repo mode

0.1.2 - 2020-07-13

• run pyupgrade --py36-plus logic too
• print each file skipped due to permissions or encoding issues

0.1.1 - 2020-07-10

• combine "as" imports with isort on a single line

0.1.0 - 2020-07-09

• automatic and isolated isort configuration. I am now happy to recommend that you try shed!

0.0.5 - 2020-05-29

• better handling of permissions issues or deleted files

0.0.4 - 2020-05-13

• compatible with pyupgrade==2.4

0.0.3 - 2020-04-23

• compatible with pyupgrade==2.2

0.0.2 - 2020-03-08

• usable CLI
• better isort autoconfig

0.0.1 - 2020-02-15

• project kickoff