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)
29 - speed up caching by avoiding pathlib (#1950)
31 - `--diff` correctly indicates when a file doesn't end in a newline (#1662)
33 - Added `--stdin-filename` argument to allow stdin to respect `--force-exclude` rules
38 - Self-contained native _Black_ binaries are now provided for releases via GitHub
45 - explicitly depend on Click 7.1.2 or newer as `Black` no longer works with versions
52 - re-implemented support for explicit trailing commas: now it works consistently within
53 any bracket pair, including nested structures (#1288 and duplicates)
55 - `Black` now reindents docstrings when reindenting code around it (#1053)
57 - `Black` now shows colored diffs (#1266)
59 - `Black` is now packaged using 'py3' tagged wheels (#1388)
61 - `Black` now supports Python 3.8 code, e.g. star expressions in return statements
64 - `Black` no longer normalizes capital R-string prefixes as those have a
65 community-accepted meaning (#1244)
67 - `Black` now uses exit code 2 when specified configuration file doesn't exit (#1361)
69 - `Black` now works on AWS Lambda (#1141)
71 - added `--force-exclude` argument (#1032)
73 - removed deprecated `--py36` option (#1236)
75 - fixed `--diff` output when EOF is encountered (#526)
77 - fixed `# fmt: off` handling around decorators (#560)
79 - fixed unstable formatting with some `# type: ignore` comments (#1113)
81 - fixed invalid removal on organizing brackets followed by indexing (#1575)
83 - introduced `black-primer`, a CI tool that allows us to run regression tests against
84 existing open source users of Black (#1402)
86 - introduced property-based fuzzing to our test suite based on Hypothesis and
89 - implemented experimental and disabled by default long string rewrapping (#1132),
90 hidden under a `--experimental-string-processing` flag while it's being worked on;
91 this is an undocumented and unsupported feature, you lose Internet points for
92 depending on it (#1609)
96 - prefer virtualenv packages over global packages (#1383)
100 - added support for PEP 572 assignment expressions (#711)
102 - added support for PEP 570 positional-only arguments (#943)
104 - added support for async generators (#593)
106 - added support for pre-splitting collections by putting an explicit trailing comma
109 - added `black -c` as a way to format code passed from the command line (#761)
111 - --safe now works with Python 2 code (#840)
113 - fixed grammar selection for Python 2-specific code (#765)
115 - fixed feature detection for trailing commas in function definitions and call sites
118 - `# fmt: off`/`# fmt: on` comment pairs placed multiple times within the same block of
119 code now behave correctly (#1005)
121 - _Black_ no longer crashes on Windows machines with more than 61 cores (#838)
123 - _Black_ no longer crashes on standalone comments prepended with a backslash (#767)
125 - _Black_ no longer crashes on `from` ... `import` blocks with comments (#829)
127 - _Black_ no longer crashes on Python 3.7 on some platform configurations (#494)
129 - _Black_ no longer fails on comments in from-imports (#671)
131 - _Black_ no longer fails when the file starts with a backslash (#922)
133 - _Black_ no longer merges regular comments with type comments (#1027)
135 - _Black_ no longer splits long lines that contain type comments (#997)
137 - removed unnecessary parentheses around `yield` expressions (#834)
139 - added parentheses around long tuples in unpacking assignments (#832)
141 - added parentheses around complex powers when they are prefixed by a unary operator
144 - fixed bug that led _Black_ format some code with a line length target of 1 (#762)
146 - _Black_ no longer introduces quotes in f-string subexpressions on string boundaries
149 - if _Black_ puts parenthesis around a single expression, it moves comments to the
150 wrapped expression instead of after the brackets (#872)
152 - `blackd` now returns the version of _Black_ in the response headers (#1013)
154 - `blackd` can now output the diff of formats on source code when the `X-Diff` header is
159 - new option `--target-version` to control which Python versions _Black_-formatted code
162 - deprecated `--py36` (use `--target-version=py36` instead) (#724)
164 - _Black_ no longer normalizes numeric literals to include `_` separators (#696)
166 - long `del` statements are now split into multiple lines (#698)
168 - type comments are no longer mangled in function signatures
170 - improved performance of formatting deeply nested data structures (#509)
172 - _Black_ now properly formats multiple files in parallel on Windows (#632)
174 - _Black_ now creates cache files atomically which allows it to be used in parallel
175 pipelines (like `xargs -P8`) (#673)
177 - _Black_ now correctly indents comments in files that were previously formatted with
180 - `blackd` now supports CORS (#622)
184 - numeric literals are now formatted by _Black_ (#452, #461, #464, #469):
186 - numeric literals are normalized to include `_` separators on Python 3.6+ code
188 - added `--skip-numeric-underscore-normalization` to disable the above behavior and
189 leave numeric underscores as they were in the input
191 - code with `_` in numeric literals is recognized as Python 3.6+
193 - most letters in numeric literals are lowercased (e.g., in `1e10`, `0x01`)
195 - hexadecimal digits are always uppercased (e.g. `0xBADC0DE`)
197 - added `blackd`, see [its documentation](#blackd) for more info (#349)
199 - adjacent string literals are now correctly split into multiple lines (#463)
201 - trailing comma is now added to single imports that don't fit on a line (#250)
203 - cache is now populated when `--check` is successful for a file which speeds up
204 consecutive checks of properly formatted unmodified files (#448)
206 - whitespace at the beginning of the file is now removed (#399)
208 - fixed mangling [pweave](http://mpastell.com/pweave/) and
209 [Spyder IDE](https://www.spyder-ide.org/) special comments (#532)
211 - fixed unstable formatting when unpacking big tuples (#267)
213 - fixed parsing of `__future__` imports with renames (#389)
215 - fixed scope of `# fmt: off` when directly preceding `yield` and other nodes (#385)
217 - fixed formatting of lambda expressions with default arguments (#468)
219 - fixed `async for` statements: _Black_ no longer breaks them into separate lines (#372)
221 - note: the Vim plugin stopped registering `,=` as a default chord as it turned out to
226 - hotfix: don't freeze when multiple comments directly precede `# fmt: off` (#371)
230 - typing stub files (`.pyi`) now have blank lines added after constants (#340)
232 - `# fmt: off` and `# fmt: on` are now much more dependable:
234 - they now work also within bracket pairs (#329)
236 - they now correctly work across function/class boundaries (#335)
238 - they now work when an indentation block starts with empty lines or misaligned
241 - made Click not fail on invalid environments; note that Click is right but the
242 likelihood we'll need to access non-ASCII file paths when dealing with Python source
245 - fixed improper formatting of f-strings with quotes inside interpolated expressions
248 - fixed unnecessary slowdown when long list literals where found in a file
250 - fixed unnecessary slowdown on AST nodes with very many siblings
252 - fixed cannibalizing backslashes during string normalization
254 - fixed a crash due to symbolic links pointing outside of the project directory (#338)
258 - added `--config` (#65)
260 - added `-h` equivalent to `--help` (#316)
262 - fixed improper unmodified file caching when `-S` was used
264 - fixed extra space in string unpacking (#305)
266 - fixed formatting of empty triple quoted strings (#313)
268 - fixed unnecessary slowdown in comment placement calculation on lines without comments
272 - hotfix: don't output human-facing information on stdout (#299)
274 - hotfix: don't output cake emoji on non-zero return code (#300)
278 - added `--include` and `--exclude` (#270)
280 - added `--skip-string-normalization` (#118)
282 - added `--verbose` (#283)
284 - the header output in `--diff` now actually conforms to the unified diff spec
286 - fixed long trivial assignments being wrapped in unnecessary parentheses (#273)
288 - fixed unnecessary parentheses when a line contained multiline strings (#232)
290 - fixed stdin handling not working correctly if an old version of Click was used (#276)
292 - _Black_ now preserves line endings when formatting a file in place (#258)
296 - added `--pyi` (#249)
298 - added `--py36` (#249)
300 - Python grammar pickle caches are stored with the formatting caches, making _Black_
301 work in environments where site-packages is not user-writable (#192)
303 - _Black_ now enforces a PEP 257 empty line after a class-level docstring (and/or
304 fields) and the first method
306 - fixed invalid code produced when standalone comments were present in a trailer that
307 was omitted from line splitting on a large expression (#237)
309 - fixed optional parentheses being removed within `# fmt: off` sections (#224)
311 - fixed invalid code produced when stars in very long imports were incorrectly wrapped
312 in optional parentheses (#234)
314 - fixed unstable formatting when inline comments were moved around in a trailer that was
315 omitted from line splitting on a large expression (#238)
317 - fixed extra empty line between a class declaration and the first method if no class
318 docstring or fields are present (#219)
320 - fixed extra empty line between a function signature and an inner function or inner
325 - call chains are now formatted according to the
326 [fluent interfaces](https://en.wikipedia.org/wiki/Fluent_interface) style (#67)
328 - data structure literals (tuples, lists, dictionaries, and sets) are now also always
329 exploded like imports when they don't fit in a single line (#152)
331 - slices are now formatted according to PEP 8 (#178)
333 - parentheses are now also managed automatically on the right-hand side of assignments
334 and return statements (#140)
336 - math operators now use their respective priorities for delimiting multiline
339 - optional parentheses are now omitted on expressions that start or end with a bracket
340 and only contain a single operator (#177)
342 - empty parentheses in a class definition are now removed (#145, #180)
344 - string prefixes are now standardized to lowercase and `u` is removed on Python 3.6+
345 only code and Python 2.7+ code with the `unicode_literals` future import (#188, #198,
348 - typing stub files (`.pyi`) are now formatted in a style that is consistent with PEP
351 - progress when reformatting many files is now reported incrementally
353 - fixed trailers (content with brackets) being unnecessarily exploded into their own
354 lines after a dedented closing bracket (#119)
356 - fixed an invalid trailing comma sometimes left in imports (#185)
358 - fixed non-deterministic formatting when multiple pairs of removable parentheses were
361 - fixed multiline strings being unnecessarily wrapped in optional parentheses in long
364 - fixed not splitting long from-imports with only a single name
366 - fixed Python 3.6+ file discovery by also looking at function calls with unpacking.
367 This fixed non-deterministic formatting if trailing commas where used both in function
368 signatures with stars and function calls with stars but the former would be
369 reformatted to a single line.
371 - fixed crash on dealing with optional parentheses (#193)
373 - fixed "is", "is not", "in", and "not in" not considered operators for splitting
376 - fixed crash when dead symlinks where encountered
380 - don't populate the cache on `--check` (#175)
384 - added a "cache"; files already reformatted that haven't changed on disk won't be
385 reformatted again (#109)
387 - `--check` and `--diff` are no longer mutually exclusive (#149)
389 - generalized star expression handling, including double stars; this fixes
390 multiplication making expressions "unsafe" for trailing commas (#132)
392 - _Black_ no longer enforces putting empty lines behind control flow statements (#90)
394 - _Black_ now splits imports like "Mode 3 + trailing comma" of isort (#127)
396 - fixed comment indentation when a standalone comment closes a block (#16, #32)
398 - fixed standalone comments receiving extra empty lines if immediately preceding a
399 class, def, or decorator (#56, #154)
401 - fixed `--diff` not showing entire path (#130)
403 - fixed parsing of complex expressions after star and double stars in function calls
406 - fixed invalid splitting on comma in lambda arguments (#133)
408 - fixed missing splits of ternary expressions (#141)
412 - fixed parsing of unaligned standalone comments (#99, #112)
414 - fixed placement of dictionary unpacking inside dictionary literals (#111)
416 - Vim plugin now works on Windows, too
418 - fixed unstable formatting when encountering unnecessarily escaped quotes in a string
423 - added `--quiet` (#78)
425 - added automatic parentheses management (#4)
427 - added [pre-commit](https://pre-commit.com) integration (#103, #104)
429 - fixed reporting on `--check` with multiple files (#101, #102)
431 - fixed removing backslash escapes from raw strings (#100, #105)
435 - added `--diff` (#87)
437 - add line breaks before all delimiters, except in cases like commas, to better comply
440 - standardize string literals to use double quotes (almost) everywhere (#75)
442 - fixed handling of standalone comments within nested bracketed expressions; _Black_
443 will no longer produce super long lines or put all standalone comments at the end of
446 - fixed 18.3a4 regression: don't crash and burn on empty lines with trailing whitespace
449 - fixed 18.3a4 regression: `# yapf: disable` usage as trailing comment would cause
450 _Black_ to not emit the rest of the file (#95)
452 - when CTRL+C is pressed while formatting many files, _Black_ no longer freaks out with
453 a flurry of asyncio-related exceptions
455 - only allow up to two empty lines on module level and only single empty lines within
460 - `# fmt: off` and `# fmt: on` are implemented (#5)
462 - automatic detection of deprecated Python 2 forms of print statements and exec
463 statements in the formatted file (#49)
465 - use proper spaces for complex expressions in default values of typed function
468 - only return exit code 1 when --check is used (#50)
470 - don't remove single trailing commas from square bracket indexing (#59)
472 - don't omit whitespace if the previous factor leaf wasn't a math operator (#55)
474 - omit extra space in kwarg unpacking if it's the first argument (#46)
476 - omit extra space in
477 [Sphinx auto-attribute comments](http://www.sphinx-doc.org/en/stable/ext/autodoc.html#directive-autoattribute)
482 - don't remove single empty lines outside of bracketed expressions (#19)
484 - added ability to pipe formatting from stdin to stdin (#25)
486 - restored ability to format code with legacy usage of `async` as a name (#20, #42)
488 - even better handling of numpy-style array indexing (#33, again)
492 - changed positioning of binary operators to occur at beginning of lines instead of at
494 [a recent change to PEP 8](https://github.com/python/peps/commit/c59c4376ad233a62ca4b3a6060c81368bd21e85b)
497 - ignore empty bracket pairs while splitting. This avoids very weirdly looking
498 formattings (#34, #35)
500 - remove a trailing comma if there is a single argument to a call
502 - if top level functions were separated by a comment, don't put four empty lines after
505 - fixed unstable formatting of newlines with imports
507 - fixed unintentional folding of post scriptum standalone comments into last statement
508 if it was a simple statement (#18, #28)
510 - fixed missing space in numpy-style array indexing (#33)
512 - fixed spurious space after star-based unary expressions (#31)
518 - only put trailing commas in function signatures and calls if it's safe to do so. If
519 the file is Python 3.6+ it's always safe, otherwise only safe if there are no `*args`
520 or `**kwargs` used in the signature or call. (#8)
522 - fixed invalid spacing of dots in relative imports (#6, #13)
524 - fixed invalid splitting after comma on unpacked variables in for-loops (#23)
526 - fixed spurious space in parenthesized set expressions (#7)
528 - fixed spurious space after opening parentheses and in default arguments (#14, #17)
530 - fixed spurious space after unary operators when the operand was a complex expression
535 - first published version, Happy 🍰 Day 2018!
539 - date-versioned (see: https://calver.org/)