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-rw-r--r--gnu/packages/python.scm35
1 files changed, 35 insertions, 0 deletions
diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm
index 793961d944..525ff3f027 100644
--- a/gnu/packages/python.scm
+++ b/gnu/packages/python.scm
@@ -2743,6 +2743,41 @@ which can produce feeds in RSS 2.0, RSS 0.91, and Atom formats.")
Language (TOML) configuration files.")
(license license:expat)))
+(define-public python-black
+ (package
+ (name "python-black")
+ (version "18.6b4")
+ (source
+ (origin
+ (method url-fetch)
+ (uri (pypi-uri "black" version))
+ (sha256
+ (base32
+ "0i4sfqgz6w15vd50kbhi7g7rifgqlf8yfr8y78rypd56q64qn592"))))
+ (build-system python-build-system)
+ (arguments
+ `(#:phases
+ (modify-phases %standard-phases
+ (add-after 'patch-source-shebangs 'patch-extra-shebangs
+ (lambda _
+ (let ((python3 (which "python3")))
+ (substitute* '("tests/data/fmtonoff.py"
+ "tests/data/string_prefixes.py"
+ "tests/data/function.py")
+ (("#!/usr/bin/env python3(\\.[0-9]+)?" _ minor-version)
+ (string-append "#!" python3 (if (string? minor-version)
+ minor-version
+ ""))))))))))
+ (propagated-inputs
+ `(("python-click" ,python-click)
+ ("python-attrs" ,python-attrs)
+ ("python-appdirs" ,python-appdirs)
+ ("python-toml" ,python-toml)))
+ (home-page "https://github.com/ambv/black")
+ (synopsis "The uncompromising code formatter")
+ (description "Black is the uncompromising Python code formatter.")
+ (license license:expat)))
+
(define-public python-blinker
(package
(name "python-blinker")