All patches and comments are welcome. Please squash your changes to logical
commits before using git-format-patch and git-send-email to
patches@git.madduck.net.
If you'd read over the Git project's submission guidelines and adhered to them,
I'd be especially grateful.
7 - `Black` now respects `--skip-string-normalization` when normalizing multiline
8 docstring quotes (#1637)
10 - `Black` no longer removes all empty lines between non-function code and decorators
11 when formatting typing stubs. Now `Black` enforces a single empty line. (#1646)
13 - `Black` no longer adds an incorrect space after a parenthesized assignment expression
14 in if/while statements (#1655)
16 - fixed a crash when PWD=/ on POSIX (#1631)
18 - fixed "I/O operation on closed file" when using --diff (#1664)
20 - Prevent coloured diff output being interleaved with multiple files (#1673)
22 - Added support for PEP 614 relaxed decorator syntax on python 3.9 (#1711)
24 - Added parsing support for unparenthesized tuples and yield expressions in annotated
27 - use lowercase hex strings (#1692)
31 - Self-contained native _Black_ binaries are now provided for releases via GitHub
38 - explicitly depend on Click 7.1.2 or newer as `Black` no longer works with versions
45 - re-implemented support for explicit trailing commas: now it works consistently within
46 any bracket pair, including nested structures (#1288 and duplicates)
48 - `Black` now reindents docstrings when reindenting code around it (#1053)
50 - `Black` now shows colored diffs (#1266)
52 - `Black` is now packaged using 'py3' tagged wheels (#1388)
54 - `Black` now supports Python 3.8 code, e.g. star expressions in return statements
57 - `Black` no longer normalizes capital R-string prefixes as those have a
58 community-accepted meaning (#1244)
60 - `Black` now uses exit code 2 when specified configuration file doesn't exit (#1361)
62 - `Black` now works on AWS Lambda (#1141)
64 - added `--force-exclude` argument (#1032)
66 - removed deprecated `--py36` option (#1236)
68 - fixed `--diff` output when EOF is encountered (#526)
70 - fixed `# fmt: off` handling around decorators (#560)
72 - fixed unstable formatting with some `# type: ignore` comments (#1113)
74 - fixed invalid removal on organizing brackets followed by indexing (#1575)
76 - introduced `black-primer`, a CI tool that allows us to run regression tests against
77 existing open source users of Black (#1402)
79 - introduced property-based fuzzing to our test suite based on Hypothesis and
82 - implemented experimental and disabled by default long string rewrapping (#1132),
83 hidden under a `--experimental-string-processing` flag while it's being worked on;
84 this is an undocumented and unsupported feature, you lose Internet points for
85 depending on it (#1609)
89 - prefer virtualenv packages over global packages (#1383)
93 - added support for PEP 572 assignment expressions (#711)
95 - added support for PEP 570 positional-only arguments (#943)
97 - added support for async generators (#593)
99 - added support for pre-splitting collections by putting an explicit trailing comma
102 - added `black -c` as a way to format code passed from the command line (#761)
104 - --safe now works with Python 2 code (#840)
106 - fixed grammar selection for Python 2-specific code (#765)
108 - fixed feature detection for trailing commas in function definitions and call sites
111 - `# fmt: off`/`# fmt: on` comment pairs placed multiple times within the same block of
112 code now behave correctly (#1005)
114 - _Black_ no longer crashes on Windows machines with more than 61 cores (#838)
116 - _Black_ no longer crashes on standalone comments prepended with a backslash (#767)
118 - _Black_ no longer crashes on `from` ... `import` blocks with comments (#829)
120 - _Black_ no longer crashes on Python 3.7 on some platform configurations (#494)
122 - _Black_ no longer fails on comments in from-imports (#671)
124 - _Black_ no longer fails when the file starts with a backslash (#922)
126 - _Black_ no longer merges regular comments with type comments (#1027)
128 - _Black_ no longer splits long lines that contain type comments (#997)
130 - removed unnecessary parentheses around `yield` expressions (#834)
132 - added parentheses around long tuples in unpacking assignments (#832)
134 - added parentheses around complex powers when they are prefixed by a unary operator
137 - fixed bug that led _Black_ format some code with a line length target of 1 (#762)
139 - _Black_ no longer introduces quotes in f-string subexpressions on string boundaries
142 - if _Black_ puts parenthesis around a single expression, it moves comments to the
143 wrapped expression instead of after the brackets (#872)
145 - `blackd` now returns the version of _Black_ in the response headers (#1013)
147 - `blackd` can now output the diff of formats on source code when the `X-Diff` header is
152 - new option `--target-version` to control which Python versions _Black_-formatted code
155 - deprecated `--py36` (use `--target-version=py36` instead) (#724)
157 - _Black_ no longer normalizes numeric literals to include `_` separators (#696)
159 - long `del` statements are now split into multiple lines (#698)
161 - type comments are no longer mangled in function signatures
163 - improved performance of formatting deeply nested data structures (#509)
165 - _Black_ now properly formats multiple files in parallel on Windows (#632)
167 - _Black_ now creates cache files atomically which allows it to be used in parallel
168 pipelines (like `xargs -P8`) (#673)
170 - _Black_ now correctly indents comments in files that were previously formatted with
173 - `blackd` now supports CORS (#622)
177 - numeric literals are now formatted by _Black_ (#452, #461, #464, #469):
179 - numeric literals are normalized to include `_` separators on Python 3.6+ code
181 - added `--skip-numeric-underscore-normalization` to disable the above behavior and
182 leave numeric underscores as they were in the input
184 - code with `_` in numeric literals is recognized as Python 3.6+
186 - most letters in numeric literals are lowercased (e.g., in `1e10`, `0x01`)
188 - hexadecimal digits are always uppercased (e.g. `0xBADC0DE`)
190 - added `blackd`, see [its documentation](#blackd) for more info (#349)
192 - adjacent string literals are now correctly split into multiple lines (#463)
194 - trailing comma is now added to single imports that don't fit on a line (#250)
196 - cache is now populated when `--check` is successful for a file which speeds up
197 consecutive checks of properly formatted unmodified files (#448)
199 - whitespace at the beginning of the file is now removed (#399)
201 - fixed mangling [pweave](http://mpastell.com/pweave/) and
202 [Spyder IDE](https://www.spyder-ide.org/) special comments (#532)
204 - fixed unstable formatting when unpacking big tuples (#267)
206 - fixed parsing of `__future__` imports with renames (#389)
208 - fixed scope of `# fmt: off` when directly preceding `yield` and other nodes (#385)
210 - fixed formatting of lambda expressions with default arguments (#468)
212 - fixed `async for` statements: _Black_ no longer breaks them into separate lines (#372)
214 - note: the Vim plugin stopped registering `,=` as a default chord as it turned out to
219 - hotfix: don't freeze when multiple comments directly precede `# fmt: off` (#371)
223 - typing stub files (`.pyi`) now have blank lines added after constants (#340)
225 - `# fmt: off` and `# fmt: on` are now much more dependable:
227 - they now work also within bracket pairs (#329)
229 - they now correctly work across function/class boundaries (#335)
231 - they now work when an indentation block starts with empty lines or misaligned
234 - made Click not fail on invalid environments; note that Click is right but the
235 likelihood we'll need to access non-ASCII file paths when dealing with Python source
238 - fixed improper formatting of f-strings with quotes inside interpolated expressions
241 - fixed unnecessary slowdown when long list literals where found in a file
243 - fixed unnecessary slowdown on AST nodes with very many siblings
245 - fixed cannibalizing backslashes during string normalization
247 - fixed a crash due to symbolic links pointing outside of the project directory (#338)
251 - added `--config` (#65)
253 - added `-h` equivalent to `--help` (#316)
255 - fixed improper unmodified file caching when `-S` was used
257 - fixed extra space in string unpacking (#305)
259 - fixed formatting of empty triple quoted strings (#313)
261 - fixed unnecessary slowdown in comment placement calculation on lines without comments
265 - hotfix: don't output human-facing information on stdout (#299)
267 - hotfix: don't output cake emoji on non-zero return code (#300)
271 - added `--include` and `--exclude` (#270)
273 - added `--skip-string-normalization` (#118)
275 - added `--verbose` (#283)
277 - the header output in `--diff` now actually conforms to the unified diff spec
279 - fixed long trivial assignments being wrapped in unnecessary parentheses (#273)
281 - fixed unnecessary parentheses when a line contained multiline strings (#232)
283 - fixed stdin handling not working correctly if an old version of Click was used (#276)
285 - _Black_ now preserves line endings when formatting a file in place (#258)
289 - added `--pyi` (#249)
291 - added `--py36` (#249)
293 - Python grammar pickle caches are stored with the formatting caches, making _Black_
294 work in environments where site-packages is not user-writable (#192)
296 - _Black_ now enforces a PEP 257 empty line after a class-level docstring (and/or
297 fields) and the first method
299 - fixed invalid code produced when standalone comments were present in a trailer that
300 was omitted from line splitting on a large expression (#237)
302 - fixed optional parentheses being removed within `# fmt: off` sections (#224)
304 - fixed invalid code produced when stars in very long imports were incorrectly wrapped
305 in optional parentheses (#234)
307 - fixed unstable formatting when inline comments were moved around in a trailer that was
308 omitted from line splitting on a large expression (#238)
310 - fixed extra empty line between a class declaration and the first method if no class
311 docstring or fields are present (#219)
313 - fixed extra empty line between a function signature and an inner function or inner
318 - call chains are now formatted according to the
319 [fluent interfaces](https://en.wikipedia.org/wiki/Fluent_interface) style (#67)
321 - data structure literals (tuples, lists, dictionaries, and sets) are now also always
322 exploded like imports when they don't fit in a single line (#152)
324 - slices are now formatted according to PEP 8 (#178)
326 - parentheses are now also managed automatically on the right-hand side of assignments
327 and return statements (#140)
329 - math operators now use their respective priorities for delimiting multiline
332 - optional parentheses are now omitted on expressions that start or end with a bracket
333 and only contain a single operator (#177)
335 - empty parentheses in a class definition are now removed (#145, #180)
337 - string prefixes are now standardized to lowercase and `u` is removed on Python 3.6+
338 only code and Python 2.7+ code with the `unicode_literals` future import (#188, #198,
341 - typing stub files (`.pyi`) are now formatted in a style that is consistent with PEP
344 - progress when reformatting many files is now reported incrementally
346 - fixed trailers (content with brackets) being unnecessarily exploded into their own
347 lines after a dedented closing bracket (#119)
349 - fixed an invalid trailing comma sometimes left in imports (#185)
351 - fixed non-deterministic formatting when multiple pairs of removable parentheses were
354 - fixed multiline strings being unnecessarily wrapped in optional parentheses in long
357 - fixed not splitting long from-imports with only a single name
359 - fixed Python 3.6+ file discovery by also looking at function calls with unpacking.
360 This fixed non-deterministic formatting if trailing commas where used both in function
361 signatures with stars and function calls with stars but the former would be
362 reformatted to a single line.
364 - fixed crash on dealing with optional parentheses (#193)
366 - fixed "is", "is not", "in", and "not in" not considered operators for splitting
369 - fixed crash when dead symlinks where encountered
373 - don't populate the cache on `--check` (#175)
377 - added a "cache"; files already reformatted that haven't changed on disk won't be
378 reformatted again (#109)
380 - `--check` and `--diff` are no longer mutually exclusive (#149)
382 - generalized star expression handling, including double stars; this fixes
383 multiplication making expressions "unsafe" for trailing commas (#132)
385 - _Black_ no longer enforces putting empty lines behind control flow statements (#90)
387 - _Black_ now splits imports like "Mode 3 + trailing comma" of isort (#127)
389 - fixed comment indentation when a standalone comment closes a block (#16, #32)
391 - fixed standalone comments receiving extra empty lines if immediately preceding a
392 class, def, or decorator (#56, #154)
394 - fixed `--diff` not showing entire path (#130)
396 - fixed parsing of complex expressions after star and double stars in function calls
399 - fixed invalid splitting on comma in lambda arguments (#133)
401 - fixed missing splits of ternary expressions (#141)
405 - fixed parsing of unaligned standalone comments (#99, #112)
407 - fixed placement of dictionary unpacking inside dictionary literals (#111)
409 - Vim plugin now works on Windows, too
411 - fixed unstable formatting when encountering unnecessarily escaped quotes in a string
416 - added `--quiet` (#78)
418 - added automatic parentheses management (#4)
420 - added [pre-commit](https://pre-commit.com) integration (#103, #104)
422 - fixed reporting on `--check` with multiple files (#101, #102)
424 - fixed removing backslash escapes from raw strings (#100, #105)
428 - added `--diff` (#87)
430 - add line breaks before all delimiters, except in cases like commas, to better comply
433 - standardize string literals to use double quotes (almost) everywhere (#75)
435 - fixed handling of standalone comments within nested bracketed expressions; _Black_
436 will no longer produce super long lines or put all standalone comments at the end of
439 - fixed 18.3a4 regression: don't crash and burn on empty lines with trailing whitespace
442 - fixed 18.3a4 regression: `# yapf: disable` usage as trailing comment would cause
443 _Black_ to not emit the rest of the file (#95)
445 - when CTRL+C is pressed while formatting many files, _Black_ no longer freaks out with
446 a flurry of asyncio-related exceptions
448 - only allow up to two empty lines on module level and only single empty lines within
453 - `# fmt: off` and `# fmt: on` are implemented (#5)
455 - automatic detection of deprecated Python 2 forms of print statements and exec
456 statements in the formatted file (#49)
458 - use proper spaces for complex expressions in default values of typed function
461 - only return exit code 1 when --check is used (#50)
463 - don't remove single trailing commas from square bracket indexing (#59)
465 - don't omit whitespace if the previous factor leaf wasn't a math operator (#55)
467 - omit extra space in kwarg unpacking if it's the first argument (#46)
469 - omit extra space in
470 [Sphinx auto-attribute comments](http://www.sphinx-doc.org/en/stable/ext/autodoc.html#directive-autoattribute)
475 - don't remove single empty lines outside of bracketed expressions (#19)
477 - added ability to pipe formatting from stdin to stdin (#25)
479 - restored ability to format code with legacy usage of `async` as a name (#20, #42)
481 - even better handling of numpy-style array indexing (#33, again)
485 - changed positioning of binary operators to occur at beginning of lines instead of at
487 [a recent change to PEP 8](https://github.com/python/peps/commit/c59c4376ad233a62ca4b3a6060c81368bd21e85b)
490 - ignore empty bracket pairs while splitting. This avoids very weirdly looking
491 formattings (#34, #35)
493 - remove a trailing comma if there is a single argument to a call
495 - if top level functions were separated by a comment, don't put four empty lines after
498 - fixed unstable formatting of newlines with imports
500 - fixed unintentional folding of post scriptum standalone comments into last statement
501 if it was a simple statement (#18, #28)
503 - fixed missing space in numpy-style array indexing (#33)
505 - fixed spurious space after star-based unary expressions (#31)
511 - only put trailing commas in function signatures and calls if it's safe to do so. If
512 the file is Python 3.6+ it's always safe, otherwise only safe if there are no `*args`
513 or `**kwargs` used in the signature or call. (#8)
515 - fixed invalid spacing of dots in relative imports (#6, #13)
517 - fixed invalid splitting after comma on unpacked variables in for-loops (#23)
519 - fixed spurious space in parenthesized set expressions (#7)
521 - fixed spurious space after opening parentheses and in default arguments (#14, #17)
523 - fixed spurious space after unary operators when the operand was a complex expression
528 - first published version, Happy 🍰 Day 2018!
532 - date-versioned (see: https://calver.org/)