diff options
| -rw-r--r-- | gnu/packages/python.scm | 68 |
1 files changed, 66 insertions, 2 deletions
diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm index 88aef9d8d6..b1d640456d 100644 --- a/gnu/packages/python.scm +++ b/gnu/packages/python.scm @@ -16,7 +16,7 @@ ;;; Copyright © 2015, 2016 Erik Edrosa <erik.edrosa@gmail.com> ;;; Copyright © 2015, 2016 Efraim Flashner <efraim@flashner.co.il> ;;; Copyright © 2015 Kyle Meyer <kyle@kyleam.com> -;;; Copyright © 2015 Chris Marusich <cmmarusich@gmail.com> +;;; Copyright © 2015, 2016 Chris Marusich <cmmarusich@gmail.com> ;;; Copyright © 2016 Danny Milosavljevic <dannym+a@scratchpost.org> ;;; ;;; This file is part of GNU Guix. @@ -6056,7 +6056,10 @@ Python's @code{ctypes} foreign function interface (FFI).") #t)))))) (inputs `(("file" ,file))) (self-native-input? #f) - (synopsis "Python bindings to the libmagic file type guesser"))) + (synopsis "Python bindings to the libmagic file type guesser. Note that +this module and the python-magic module both provide a \"magic.py\" file; +these two modules, which are different and were developed separately, both +serve the same purpose: provide Python bindings for libmagic."))) (define-public python2-file (package-with-python2 python-file)) @@ -8490,3 +8493,64 @@ is made as zipfile like as possible.") (define-public python2-rarfile (package-with-python2 python-rarfile)) + +(define-public python-magic + (package + (name "python-magic") + (version "0.4.3") + (source + (origin + (method url-fetch) + (uri (string-append "https://github.com/ahupp/python-magic/archive/" + version ".tar.gz")) + (sha256 + (base32 + "17bgy92i7sb021f2s4mw1dcvpm6p1mi9jihridwy1pyn8mzvpjgk")) + (file-name (string-append name "-" version "-checkout")))) + (build-system python-build-system) + (arguments + ;; The tests are unreliable, so don't run them. The tests fail + ;; under Python3 because they were written for Python2 and + ;; contain import statements that do not work in Python3. One of + ;; the tests fails under Python2 because its assertions are + ;; overly stringent; it relies on comparing output strings which + ;; are brittle and can change depending on the version of + ;; libmagic being used and the system on which the test is + ;; running. In my case, under GuixSD 0.10.0, only one test + ;; failed, and it seems to have failed only because the version + ;; of libmagic that is packaged in Guix outputs a slightly + ;; different (but not wrong) string than the one that the test + ;; expected. + '(#:tests? #f + #:phases (modify-phases %standard-phases + ;; Replace a specific method call with a hard-coded + ;; path to the necessary libmagic.so file in the + ;; store. If we don't do this, then the method call + ;; will fail to find the libmagic.so file, which in + ;; turn will cause any application using + ;; python-magic to fail. + (add-before 'build 'hard-code-path-to-libmagic + (lambda* (#:key inputs #:allow-other-keys) + (let ((file (assoc-ref inputs "file"))) + (substitute* "magic.py" + (("ctypes.util.find_library\\('magic'\\)") + (string-append "'" file "/lib/libmagic.so'"))) + #t)))))) + (native-inputs + `(("python-setuptools" ,python-setuptools))) + (inputs + ;; python-magic needs to be able to find libmagic.so. + `(("file" ,file))) + (home-page "https://github.com/ahupp/python-magic") + (synopsis "File type identification using libmagic") + (description + "This module uses ctypes to access the libmagic file type +identification library. It makes use of the local magic database and +supports both textual and MIME-type output. Note that this module and +the python-file module both provide a \"magic.py\" file; these two +modules, which are different and were developed separately, both serve +the same purpose: to provide Python bindings for libmagic.") + (license license:expat))) + +(define-public python2-magic + (package-with-python2 python-magic)) |