black [OPTIONS] [SRC]...
Options:
- -l, --line-length INTEGER Where to wrap around. [default: 88]
- --py36 Allow using Python 3.6-only syntax on all input
- files. This will put trailing commas in function
- signatures and calls also after *args and
- **kwargs. [default: per-file auto-detection]
- --pyi Format all input files like typing stubs
- regardless of file extension (useful when piping
- source on standard input).
+ -l, --line-length INTEGER How many characters per line to allow.
+ [default: 88]
+ -t, --target-version [pypy35|cpy27|cpy33|cpy34|cpy35|cpy36|cpy37|cpy38]
+ Python versions that should be supported by
+ Black's output. [default: per-file auto-
+ detection]
+ --py36 Allow using Python 3.6-only syntax on all
+ input files. This will put trailing commas
+ in function signatures and calls also after
+ *args and **kwargs. [default: per-file
+ auto-detection]
+ --pyi Format all input files like typing stubs
+ regardless of file extension (useful when
+ piping source on standard input).
-S, --skip-string-normalization
- Don't normalize string quotes or prefixes.
+ Don't normalize string quotes or prefixes.
-N, --skip-numeric-underscore-normalization
- Don't normalize underscores in numeric literals.
- --check Don't write the files back, just return the
- status. Return code 0 means nothing would
- change. Return code 1 means some files would be
- reformatted. Return code 123 means there was an
- internal error.
- --diff Don't write the files back, just output a diff
- for each file on stdout.
- --fast / --safe If --fast given, skip temporary sanity checks.
- [default: --safe]
- --include TEXT A regular expression that matches files and
- directories that should be included on
- recursive searches. On Windows, use forward
- slashes for directories. [default: \.pyi?$]
- --exclude TEXT A regular expression that matches files and
- directories that should be excluded on
- recursive searches. On Windows, use forward
- slashes for directories. [default:
- build/|buck-out/|dist/|_build/|\.eggs/|\.git/|
- \.hg/|\.mypy_cache/|\.nox/|\.tox/|\.venv/]
- -q, --quiet Don't emit non-error messages to stderr. Errors
- are still emitted, silence those with
- 2>/dev/null.
- -v, --verbose Also emit messages to stderr about files
- that were not changed or were ignored due to
- --exclude=.
- --version Show the version and exit.
- --config PATH Read configuration from PATH.
- --help Show this message and exit.
+ Don't normalize underscores in numeric
+ literals.
+ --check Don't write the files back, just return the
+ status. Return code 0 means nothing would
+ change. Return code 1 means some files
+ would be reformatted. Return code 123 means
+ there was an internal error.
+ --diff Don't write the files back, just output a
+ diff for each file on stdout.
+ --fast / --safe If --fast given, skip temporary sanity
+ checks. [default: --safe]
+ --include TEXT A regular expression that matches files and
+ directories that should be included on
+ recursive searches. An empty value means
+ all files are included regardless of the
+ name. Use forward slashes for directories
+ on all platforms (Windows, too). Exclusions
+ are calculated first, inclusions later.
+ [default: \.pyi?$]
+ --exclude TEXT A regular expression that matches files and
+ directories that should be excluded on
+ recursive searches. An empty value means no
+ paths are excluded. Use forward slashes for
+ directories on all platforms (Windows, too).
+ Exclusions are calculated first, inclusions
+ later. [default: /(\.eggs|\.git|\.hg|\.mypy
+ _cache|\.nox|\.tox|\.venv|_build|buck-
+ out|build|dist)/]
+ -q, --quiet Don't emit non-error messages to stderr.
+ Errors are still emitted, silence those with
+ 2>/dev/null.
+ -v, --verbose Also emit messages to stderr about files
+ that were not changed or were ignored due to
+ --exclude=.
+ --version Show the version and exit.
+ --config PATH Read configuration from PATH.
+ -h, --help Show this message and exit.
```
*Black* is a well-behaved Unix-style command-line tool:
passed the `--fast` command line flag.
- `X-Python-Variant`: if set to `pyi`, `blackd` will act as *Black* does when
passed the `--pyi` command line flag. Otherwise, its value must correspond to
- a Python version. If this value represents at least Python 3.6, `blackd` will
- act as *Black* does when passed the `--py36` command line flag.
+ a Python version or a set of comma-separated Python versions, optionally
+ prefixed with `cpy` or `pypy`. For example, to request code that is compatible
+ with PyPy 3.5 and CPython 3.5, set the header to `pypy3.5,cpy3.5`.
If any of these headers are set to invalid values, `blackd` returns a `HTTP 400`
error response, mentioning the name of the problematic header in the message body.
## Change Log
+### 18.11b0
+
+* new option `--target-version` to control which Python versions
+ *Black*-formatted code should target
+
### 18.9b0
* numeric literals are now formatted by *Black* (#452, #461, #464, #469):
projects / etc / vim.git / blobdiff