+
+(define-public python-versioneer
+ (package
+ (name "python-versioneer")
+ (version "0.19")
+ (source
+ (origin
+ (method url-fetch)
+ (uri (pypi-uri "versioneer" version))
+ (sha256
+ (base32
+ "1bmg8y78am371rd9b4clf11b8g1h7xvq8q58z03jvgdwpsdx7zm4"))))
+ (build-system python-build-system)
+ (home-page
+ "https://github.com/python-versioneer/python-versioneer")
+ (synopsis
+ "Version-string management for VCS-controlled trees")
+ (description
+ "@code{versioneer} is a tool for managing a recorded version number in
+distutils-based python projects. The goal is to remove the tedious and
+error-prone \"update the embedded version string\" step from your release
+process.")
+ (license license:public-domain)))
+
+(define-public python2-gamera
+ (package
+ (name "python2-gamera")
+ (version "3.4.4")
+ (source
+ (origin
+ (method url-fetch)
+ (uri (string-append "https://gamera.informatik.hsnr.de/download/"
+ "gamera-" version ".tar.gz"))
+ (sha256
+ (base32 "1g4y1kxk1hmxfsiz682hbxvwryqilnb21ci509m559yp7hcliiyy"))
+ (modules '((guix build utils)))
+ (snippet
+ '(begin
+ ;; Remove bundled libraries.
+ (for-each delete-file-recursively
+ '("src/libpng-1.2.5"
+ "src/libtiff"
+ "src/zlib-1.2.8"))))))
+ (build-system python-build-system)
+ (inputs
+ `(("libpng" ,libpng)
+ ("libtiff" ,libtiff)
+ ("python2-wxpython" ,python2-wxpython)
+ ("zlib" ,zlib)))
+ (arguments
+ `(#:python ,python-2))
+ (synopsis "Framework for building document analysis applications")
+ (description
+ "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)))
+
+(define-public python-aiofiles
+ (package
+ (name "python-aiofiles")
+ (version "0.5.0")
+ (source
+ (origin
+ (method url-fetch)
+ (uri (pypi-uri "aiofiles" version))
+ (sha256
+ (base32
+ "1bqmv019x16qa3zah0z915cw6z4va3fjs60fk2s7vyah3gyvrrlq"))))
+ (build-system python-build-system)
+ (home-page "https://github.com/Tinche/aiofiles")
+ (synopsis "File support for @code{asyncio}")
+ (description "@code{python-aiofiles} is a library for handling local
+disk files in asyncio applications.")
+ (license license:asl2.0)))
+
+(define-public python-pyre-extensions
+ (package
+ (name "python-pyre-extensions")
+ (version "0.0.18")
+ (source
+ (origin
+ (method url-fetch)
+ (uri (pypi-uri "pyre-extensions" version))
+ (sha256
+ (base32
+ "0c5cbbqrfyjwakdh3kbwxis6mbrbwky1z1fqslgszgpcj4g43q30"))))
+ (build-system python-build-system)
+ (propagated-inputs
+ `(("python-typing-extensions"
+ ,python-typing-extensions)
+ ("python-typing-inspect" ,python-typing-inspect)))
+ (home-page "https://pyre-check.org")
+ (synopsis
+ "Type system extensions for use with @code{python-pyre}")
+ (description
+ "@code{python-pyre-extensions} defines extensions to the standard
+@code{typing} module that are supported by the Pyre typechecker.")
+ (license license:expat)))
+
+(define-public python-dataclasses
+ (package
+ (name "python-dataclasses")
+ (version "0.7")
+ (source
+ (origin
+ (method url-fetch)
+ (uri (pypi-uri "dataclasses" version))
+ (sha256
+ (base32
+ "1rh8111fbws2vxyf2qy2zw3x6p6cq1jfz8pf904gig5qwg56sjj9"))))
+ (build-system python-build-system)
+ (home-page
+ "https://github.com/ericvsmith/dataclasses")
+ (synopsis
+ "Backport of the @code{dataclasses} module for Python 3.6")
+ (description
+ "This is an implementation of PEP 557, Data Classes. It is a
+backport of the @code{dataclasses} module for Python 3.6.")
+ (license license:asl2.0)))
+
+(define-public python-pywatchman
+ (package
+ (name "python-pywatchman")
+ (version "1.4.1")
+ (source
+ (origin
+ (method url-fetch)
+ (uri (pypi-uri "pywatchman" version))
+ (sha256
+ (base32
+ "1yf2gm20wc3djpb5larxii3l55xxby0il2ns3q0v1byyfnr7w16h"))))
+ (build-system python-build-system)
+ (arguments
+ `(#:tests? #f)) ;there are none
+ (home-page
+ "https://facebook.github.io/watchman/")
+ (synopsis "Watchman client for python")
+ (description "@code{python-pywatchman} is a library to connect and
+query Watchman to discover file changes.")
+ (license license:bsd-3)))