"Gamera is a toolkit for building document image recognition systems.")
(home-page "https://gamera.informatik.hsnr.de/")
(license license:gpl2+)))
+
+(define-public python-contextvars
+ (package
+ (name "python-contextvars")
+ (version "2.4")
+ (source
+ (origin
+ (method url-fetch)
+ (uri (pypi-uri "contextvars" version))
+ (sha256
+ (base32
+ "17n3w8c20kgkgc6khaafdhhlcdj4bzman4paxqsl7harma59137k"))))
+ (build-system python-build-system)
+ (propagated-inputs
+ `(("python-immutables" ,python-immutables)))
+ (home-page
+ "https://github.com/MagicStack/contextvars")
+ (synopsis "PEP 567 Backport")
+ (description "This package implements a backport of Python 3.7
+@code{contextvars} module (see PEP 567) for Python 3.6.")
+ (license license:asl2.0)))