01/03: gnu: Add python-typing-extensions.

[guix-commits]

dannym pushed a commit to branch master
in repository guix.

commit f89d443be198f6f6fbb8d7576120301269f99192
Author: Vagrant Cascadian <address@hidden>
Date:   Tue Feb 5 04:14:23 2019 +0000

    gnu: Add python-typing-extensions.
    
    * gnu/packages/python-xyz.scm (python-typing-extensions): New variable.
---
 gnu/packages/python-xyz.scm | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index f047a5c..2a1575a 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -13433,6 +13433,43 @@ and other tools.")
 (define-public python2-typing
   (package-with-python2 python-typing))
 
+(define-public python-typing-extensions
+  (package
+    (name "python-typing-extensions")
+    (version "3.7.2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "typing_extensions" version))
+       (sha256
+        (base32
+         "0wfsv71pvkyf2na938l579jh0v3kzl6g744ijgnahcwd4d9x0b7v"))))
+    (build-system python-build-system)
+    (home-page
+     
"https://github.com/python/typing/blob/master/typing_extensions/README.rst";)
+    (synopsis "Experimental type hints for Python")
+    (description
+     "The typing_extensions module contains additional @code{typing} hints not
+yet present in the of the @code{typing} standard library.
+Included are implementations of:
address@hidden
address@hidden ClassVar
address@hidden ContextManager
address@hidden Counter
address@hidden DefaultDict
address@hidden Deque
address@hidden NewType
address@hidden NoReturn
address@hidden overload
address@hidden Protocol
address@hidden runtime
address@hidden Text
address@hidden Type
address@hidden TYPE_CHECKING
address@hidden AsyncGenerator
address@hidden enumerate\n")
+    (license license:psfl)))
+
 (define-public bpython
   (package
     (name "bpython")