[PATCH 09/16] gnu: Add python-entrypoints.

[Ricardo Wurmus]

* gnu/packages/python.scm (python-entrypoints, python2-entrypoints): New
variables.
---
 gnu/packages/python.scm | 55 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm
index a2d3d3c..621c4d0 100644
--- a/gnu/packages/python.scm
+++ b/gnu/packages/python.scm
@@ -6719,6 +6719,61 @@ Jupyter Notebook format and Python APIs for working with 
notebooks.")
 (define-public python2-bleach
   (package-with-python2 python-bleach))
 
+(define-public python-entrypoints
+  (package
+    (name "python-entrypoints")
+    (version "0.2.2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://github.com/takluyver/entrypoints/archive/";
+                           version ".tar.gz"))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "0azqlkh3j0za080lsf5crnhaxx3c93k9dpv5ihkhf5cppgw5sjz5"))))
+    (build-system python-build-system)
+    ;; The package does not come with a setup.py file, so we have to install
+    ;; the file along with a custom egg-info file.
+    (arguments
+     `(#:tests? #f
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'build)
+         (replace 'install
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (python-version ((@@ (guix build python-build-system)
+                                         get-python-version)
+                                     (assoc-ref inputs "python")))
+                    (target (string-append out "/lib/python" python-version
+                                           "/site-packages/")))
+               (mkdir-p target)
+               (call-with-output-file (string-append target 
"entrypoints.egg-info")
+                 (lambda (port)
+                   (format port "\
+Metadata-Version: 1.1
+Name: entrypoints
+Version: ~a
+Summary: Discover and load entry points from installed packages
+Author: Thomas Kluyver
+Author-email: address@hidden
+Classifier: License :: OSI Approved :: MIT License
+" ,version)))
+               (install-file "entrypoints.py" target)
+               #t))))))
+    (home-page "https://github.com/takluyver/entrypoints";)
+    (synopsis "Discover and load entry points from installed Python packages")
+    (description "Entry points are a way for Python packages to advertise
+objects with some common interface.  The most common examples are
address@hidden entry points, which define shell commands by
+identifying a Python function to run.  The @code{entrypoints} module contains
+functions to find and load entry points.")
+    (license license:expat)))
+
+(define-public python2-entrypoints
+  (package-with-python2 python-entrypoints))
+
 (define-public python-chardet
   (package
     (name "python-chardet")
-- 
2.10.1