From c27a9d8a880a07a3c108dac85d84d38bf287b2be Mon Sep 17 00:00:00 2001 From: Ricardo Wurmus Date: Wed, 5 Sep 2018 15:59:58 +0200 Subject: [PATCH] gnu: Add python-blosc. * gnu/packages/python.scm (python-blosc): New variable. --- gnu/packages/python.scm | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm index 0a77355fba..97b4ca86cd 100644 --- a/gnu/packages/python.scm +++ b/gnu/packages/python.scm @@ -14190,3 +14190,34 @@ data.") "Locket implements a lock that can be used by multiple processes provided they use the same path.") (license license:bsd-2))) + +(define-public python-blosc + (package + (name "python-blosc") + (version "1.5.1") + (source + (origin + (method url-fetch) + (uri (pypi-uri "blosc" version)) + (sha256 + (base32 + "1cm91c6r431yla2mbs4895bgiianjf30dfz14vvv99dslygd65jw")))) + (build-system python-build-system) + ;; FIXME: all tests pass, but then this error is printed: + ;; TypeError: calling returned None, not a test + (arguments '(#:tests? #f)) + (propagated-inputs + `(("python-numpy" ,python-numpy))) + (home-page "https://github.com/blosc/python-blosc") + (synopsis "Python wrapper for the Blosc data compressor library") + (description "Blosc is a high performance compressor optimized for binary +data. It has been designed to transmit data to the processor cache faster +than the traditional, non-compressed, direct memory fetch approach via a +@code{memcpy()} system call. + +Blosc works well for compressing numerical arrays that contains data with +relatively low entropy, like sparse data, time series, grids with +regular-spaced values, etc. + +This Python package wraps the Blosc library.") + (license license:bsd-3)))