1 files changed, 96 insertions, 2 deletions

diff --git a/gnu/packages/python-science.scm b/gnu/packages/python-science.scm
index 93fc63c2e7c..4a262ec7937 100644
--- a/gnu/packages/python-science.scm
+++ b/gnu/packages/python-science.scm
@@ -1,10 +1,13 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2015 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2015, 2016 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch>
+;;; Copyright © 2016 Ben Woodcroft <donttrustben@gmail.com>
 ;;; Copyright © 2016 Hartmut Goebel <h.goebel@crazy-compilers.com>
 ;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
-;;; Copyright © 2016, 2018 Marius Bakke <mbakke@fastmail.com>
+;;; Copyright © 2016, 2017, 2018, 2019 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2019 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2019 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2019 Giacomo Leidi <goodoldpaul@autistici.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -30,8 +33,10 @@
   #:use-module (gnu packages maths)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages python)
+  #:use-module (gnu packages python-web)
   #:use-module (gnu packages python-xyz)
   #:use-module (gnu packages sphinx)
+  #:use-module (gnu packages time)
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix utils)
@@ -191,3 +196,92 @@ routines such as routines for numerical integration and optimization.")
 
 (define-public python2-scikit-image
   (package-with-python2 python-scikit-image))
+
+(define-public python-pandas
+  (package
+    (name "python-pandas")
+    (version "0.25.2")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "pandas" version))
+       (sha256
+        (base32 "1gp2pvzdiakvgjmykdzdlzrsfbg4vjm49jjdl9s0ha0a3yfs34fa"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:modules ((guix build utils)
+                  (guix build python-build-system)
+                  (ice-9 ftw)
+                  (srfi srfi-26))
+       #:phases (modify-phases %standard-phases
+                  (add-after 'unpack 'patch-which
+                    (lambda* (#:key inputs #:allow-other-keys)
+                      (let ((which (assoc-ref inputs "which")))
+                        (substitute* "pandas/io/clipboard/__init__.py"
+                          (("^CHECK_CMD = .*")
+                           (string-append "CHECK_CMD = \"" which "\"\n"))))
+                      #t))
+                  (replace 'check
+                    (lambda _
+                      (let ((build-directory
+                             (string-append
+                              (getcwd) "/build/"
+                              (car (scandir "build"
+                                            (cut string-prefix? "lib." <>))))))
+                        ;; Disable the "strict data files" option which causes
+                        ;; the build to error out if required data files are
+                        ;; not available (as is the case with PyPI archives).
+                        (substitute* "setup.cfg"
+                          (("addopts = --strict-data-files") "addopts = "))
+                        (with-directory-excursion build-directory
+                          ;; Delete tests that require "moto" which is not yet
+                          ;; in Guix.
+                          (for-each delete-file
+                                    '("pandas/tests/io/conftest.py"
+                                      "pandas/tests/io/json/test_compression.py"
+                                      "pandas/tests/io/parser/test_network.py"
+                                      "pandas/tests/io/test_parquet.py"))
+                          (invoke "pytest" "-vv" "pandas" "--skip-slow"
+                                  "--skip-network" "-k"
+                                  ;; XXX: Due to the deleted tests above.
+                                  "not test_read_s3_jsonl"))))))))
+    (propagated-inputs
+     `(("python-numpy" ,python-numpy)
+       ("python-openpyxl" ,python-openpyxl)
+       ("python-pytz" ,python-pytz)
+       ("python-dateutil" ,python-dateutil)
+       ("python-xlrd" ,python-xlrd)))
+    (inputs
+     `(("which" ,which)))
+    (native-inputs
+     `(("python-cython" ,python-cython)
+       ("python-beautifulsoup4" ,python-beautifulsoup4)
+       ("python-lxml" ,python-lxml)
+       ("python-html5lib" ,python-html5lib)
+       ("python-nose" ,python-nose)
+       ("python-pytest" ,python-pytest)
+       ("python-pytest-mock" ,python-pytest-mock)))
+    (home-page "https://pandas.pydata.org")
+    (synopsis "Data structures for data analysis, time series, and statistics")
+    (description
+     "Pandas is a Python package providing fast, flexible, and expressive data
+structures designed to make working with structured (tabular,
+multidimensional, potentially heterogeneous) and time series data both easy
+and intuitive.  It aims to be the fundamental high-level building block for
+doing practical, real world data analysis in Python.")
+    (properties `((python2-variant . ,(delay python2-pandas))))
+    (license license:bsd-3)))
+
+;; Pandas 0.24.x are the last versions that support Python 2.
+(define-public python2-pandas
+  (let ((pandas (package-with-python2
+                 (strip-python2-variant python-pandas))))
+    (package/inherit
+     pandas
+     (version "0.24.2")
+     (source (origin
+               (method url-fetch)
+               (uri (pypi-uri "pandas" version))
+               (sha256
+                (base32
+                 "18imlm8xbhcbwy4wa957a1fkamrcb0z988z006jpfda3ki09z4ag")))))))