[jackhill/guix/guix.git] / gnu / packages / python-science.scm

;;; GNU Guix --- Functional package management for GNU
;;; 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, 2017, 2018, 2019, 2020 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.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (gnu packages python-science)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (gnu packages)
  #:use-module (gnu packages base)
  #:use-module (gnu packages check)
  #:use-module (gnu packages gcc)
  #: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 (gnu packages xml)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (guix utils)
  #:use-module (guix build-system python))

(define-public python-scipy
  (package
    (name "python-scipy")
    (version "1.3.2")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "scipy" version))
       (sha256
        (base32 "192d8dsybvhv19igkrsafbdafx198nz7pibkjgrqjhlr66s3jfd0"))))
    (build-system python-build-system)
    (propagated-inputs
     `(("python-numpy" ,python-numpy)
       ("python-matplotlib" ,python-matplotlib)
       ("python-pyparsing" ,python-pyparsing)))
    (inputs
     `(("lapack" ,lapack)
       ("openblas" ,openblas)))
    (native-inputs
     `(("python-cython" ,python-cython)
       ("python-pytest" ,python-pytest)
       ("python-sphinx" ,python-sphinx)
       ("python-numpydoc" ,python-numpydoc)
       ("gfortran" ,gfortran)
       ("perl" ,perl)
       ("which" ,which)))
    (outputs '("out" "doc"))
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'disable-broken-tests
           (lambda _
             (substitute* "scipy/sparse/linalg/dsolve/tests/test_linsolve.py"
               (("^( +)def test_threads_parallel\\(self\\):" m indent)
                (string-append indent
                               "@pytest.mark.skip(reason=\"Disabled by Guix\")\n"
                               m)))
             (substitute* "scipy/sparse/linalg/eigen/arpack/tests/test_arpack.py"
               (("^def test_parallel_threads\\(\\):" m)
                (string-append "@pytest.mark.skip(reason=\"Disabled by Guix\")\n"
                               m)))
             #t))
         (add-before 'build 'configure-openblas
           (lambda* (#:key inputs #:allow-other-keys)
             (call-with-output-file "site.cfg"
               (lambda (port)
                 (format port
                         "[blas]
libraries = openblas
library_dirs = ~a/lib
include_dirs = ~a/include

# backslash-n to make emacs happy
\n[atlas]
library_dirs = ~a/lib
atlas_libs = openblas
"
                         (assoc-ref inputs "openblas")
                         (assoc-ref inputs "openblas")
                         (assoc-ref inputs "openblas"))))
             #t))
         (add-after 'install 'install-doc
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (let* ((data (string-append (assoc-ref outputs "doc") "/share"))
                    (doc (string-append data "/doc/" ,name "-" ,version))
                    (html (string-append doc "/html"))
                    (pyver ,(string-append "PYVER=" (version-major+minor
                                                     (package-version python))))
                    ;; By default it tries to run sphinx-build through the Python
                    ;; interpreter which won't work with our shell wrapper.
                    (sphinxbuild "SPHINXBUILD=LANG=C sphinx-build"))
               ;; Make installed package available for building the
               ;; documentation
               (add-installed-pythonpath inputs outputs)
               (with-directory-excursion "doc"
                 ;; Fix generation of images for mathematical expressions.
                 (substitute* (find-files "source" "conf\\.py")
                   (("pngmath_use_preview = True")
                    "pngmath_use_preview = False"))
                 (mkdir-p html)
                 (invoke "make" "html" pyver sphinxbuild)
                 (with-directory-excursion "build/html"
                   (for-each (lambda (file)
                               (let* ((dir (dirname file))
                                      (tgt-dir (string-append html "/" dir)))
                                 (install-file file html)))
                             (find-files "." ".*")))))
             #t))
         ;; Tests can only be run after the library has been installed and not
         ;; within the source directory.
         (delete 'check)
         (add-after 'install 'check
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (add-installed-pythonpath inputs outputs)
             (with-directory-excursion "/tmp"
               (invoke "python" "-c"
                       "import scipy; scipy.test(verbose=2)")))))))
    (home-page "https://www.scipy.org/")
    (synopsis "The Scipy library provides efficient numerical routines")
    (description "The SciPy library is one of the core packages that make up
the SciPy stack.  It provides many user-friendly and efficient numerical
routines such as routines for numerical integration and optimization.")
    (properties `((python2-variant . ,(delay python2-scipy))))
    (license license:bsd-3)))

;; Version 1.2.2 is the last version to support Python 2
(define-public python2-scipy
  (package
    (inherit (package-with-python2
              (strip-python2-variant python-scipy)))
    (version "1.2.2")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "scipy" version))
       (sha256
        (base32
         "1cgvgin8fvckv96hjh3ikmwkra5rif51bdb75ifzf7xbil5iwcx4"))))))

(define-public python-scikit-image
  (package
    (name "python-scikit-image")
    (version "0.14.2")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "scikit-image" version))
       (sha256
        (base32 "07qchljkyxvg5nrm12fvszi7pmjk4m01qp0w0z8syxzxxs20pz8s"))))
    (build-system python-build-system)
    (arguments
     ;; TODO: Some tests require running X11 server. Disable them?
     '(#:tests? #f))
    ;; See DEPENDS.txt for the list of build and run time requiremnts
    (propagated-inputs
     `(("python-cloudpickle" ,python-cloudpickle)
       ("python-dask" ,python-dask)
       ("python-matplotlib" ,python-matplotlib)
       ("python-networkx" ,python-networkx)
       ("python-numpy" ,python-numpy)
       ("python-pillow" ,python-pillow)
       ("python-pywavelets" ,python-pywavelets)
       ("python-scipy" ,python-scipy)
       ("python-six" ,python-six)))
    (native-inputs
     `(("python-cython" ,python-cython)))
    (home-page "https://scikit-image.org/")
    (synopsis "Image processing in Python")
    (description
     "Scikit-image is a collection of algorithms for image processing.")
    (license license:bsd-3)))

(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"))
                (modules '((guix build utils)))
                (snippet
                 '(begin
                    ;; Adjust for renamed error message in Python 2.7.17.  Taken
                    ;; from <https://github.com/pandas-dev/pandas/pull/29294>.
                    (substitute* "pandas/io/parsers.py"
                      (("if 'NULL byte' in msg:")
                       "if 'NULL byte' in msg or 'line contains NUL' in msg:"))
                    #t)))))))
Commit	Line	Data
ca7c3653	1	;;; GNU Guix --- Functional package management for GNU
312ec128	2	;;; Copyright © 2015, 2016 Ricardo Wurmus <rekado@elephly.net>
ca7c3653	3	;;; Copyright © 2015 Federico Beffa <beffa@fbengineering.ch>
312ec128	4	;;; Copyright © 2016 Ben Woodcroft <donttrustben@gmail.com>
ca7c3653 RW	5	;;; Copyright © 2016 Hartmut Goebel <h.goebel@crazy-compilers.com>
ca7c3653 RW	6	;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
39877154	7	;;; Copyright © 2016, 2017, 2018, 2019, 2020 Marius Bakke <mbakke@fastmail.com>
ca7c3653	8	;;; Copyright © 2019 Tobias Geerinckx-Rice <me@tobias.gr>
312ec128 RW	9	;;; Copyright © 2019 Maxim Cournoyer <maxim.cournoyer@gmail.com>
312ec128 RW	10	;;; Copyright © 2019 Giacomo Leidi <goodoldpaul@autistici.org>
ca7c3653 RW	11	;;;
	12	;;; This file is part of GNU Guix.
	13	;;;
	14	;;; GNU Guix is free software; you can redistribute it and/or modify it
	15	;;; under the terms of the GNU General Public License as published by
	16	;;; the Free Software Foundation; either version 3 of the License, or (at
	17	;;; your option) any later version.
	18	;;;
	19	;;; GNU Guix is distributed in the hope that it will be useful, but
	20	;;; WITHOUT ANY WARRANTY; without even the implied warranty of
	21	;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	22	;;; GNU General Public License for more details.
	23	;;;
	24	;;; You should have received a copy of the GNU General Public License
	25	;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
	26
	27	(define-module (gnu packages python-science)
	28	#:use-module ((guix licenses) #:prefix license:)
	29	#:use-module (gnu packages)
ec1224a7 RW	30	#:use-module (gnu packages base)
	31	#:use-module (gnu packages check)
	32	#:use-module (gnu packages gcc)
	33	#:use-module (gnu packages maths)
	34	#:use-module (gnu packages perl)
	35	#:use-module (gnu packages python)
312ec128	36	#:use-module (gnu packages python-web)
ca7c3653	37	#:use-module (gnu packages python-xyz)
ec1224a7	38	#:use-module (gnu packages sphinx)
312ec128	39	#:use-module (gnu packages time)
55e1475c	40	#:use-module (gnu packages xml)
ca7c3653 RW	41	#:use-module (guix packages)
	42	#:use-module (guix download)
	43	#:use-module (guix utils)
	44	#:use-module (guix build-system python))
	45
ec1224a7 RW	46	(define-public python-scipy
	47	(package
	48	(name "python-scipy")
	49	(version "1.3.2")
	50	(source
	51	(origin
	52	(method url-fetch)
	53	(uri (pypi-uri "scipy" version))
	54	(sha256
	55	(base32 "192d8dsybvhv19igkrsafbdafx198nz7pibkjgrqjhlr66s3jfd0"))))
	56	(build-system python-build-system)
	57	(propagated-inputs
	58	`(("python-numpy" ,python-numpy)
	59	("python-matplotlib" ,python-matplotlib)
	60	("python-pyparsing" ,python-pyparsing)))
	61	(inputs
	62	`(("lapack" ,lapack)
	63	("openblas" ,openblas)))
	64	(native-inputs
	65	`(("python-cython" ,python-cython)
	66	("python-pytest" ,python-pytest)
	67	("python-sphinx" ,python-sphinx)
	68	("python-numpydoc" ,python-numpydoc)
	69	("gfortran" ,gfortran)
	70	("perl" ,perl)
	71	("which" ,which)))
	72	(outputs '("out" "doc"))
	73	(arguments
	74	`(#:phases
	75	(modify-phases %standard-phases
	76	(add-after 'unpack 'disable-broken-tests
	77	(lambda _
	78	(substitute* "scipy/sparse/linalg/dsolve/tests/test_linsolve.py"
	79	(("^( +)def test_threads_parallel\\(self\\):" m indent)
	80	(string-append indent
	81	"@pytest.mark.skip(reason=\"Disabled by Guix\")\n"
	82	m)))
	83	(substitute* "scipy/sparse/linalg/eigen/arpack/tests/test_arpack.py"
	84	(("^def test_parallel_threads\\(\\):" m)
	85	(string-append "@pytest.mark.skip(reason=\"Disabled by Guix\")\n"
	86	m)))
	87	#t))
	88	(add-before 'build 'configure-openblas
	89	(lambda* (#:key inputs #:allow-other-keys)
	90	(call-with-output-file "site.cfg"
	91	(lambda (port)
	92	(format port
	93	"[blas]
	94	libraries = openblas
	95	library_dirs = ~a/lib
	96	include_dirs = ~a/include
	97
	98	# backslash-n to make emacs happy
	99	\n[atlas]
	100	library_dirs = ~a/lib
	101	atlas_libs = openblas
	102	"
	103	(assoc-ref inputs "openblas")
	104	(assoc-ref inputs "openblas")
	105	(assoc-ref inputs "openblas"))))
	106	#t))
	107	(add-after 'install 'install-doc
	108	(lambda* (#:key inputs outputs #:allow-other-keys)
	109	(let* ((data (string-append (assoc-ref outputs "doc") "/share"))
110	(doc (string-append data "/doc/" ,name "-" ,version))
111	(html (string-append doc "/html"))
112	(pyver ,(string-append "PYVER=" (version-major+minor
113	(package-version python))))
114	;; By default it tries to run sphinx-build through the Python
115	;; interpreter which won't work with our shell wrapper.
116	(sphinxbuild "SPHINXBUILD=LANG=C sphinx-build"))
117	;; Make installed package available for building the
118	;; documentation
119	(add-installed-pythonpath inputs outputs)
120	(with-directory-excursion "doc"
121	;; Fix generation of images for mathematical expressions.
122	(substitute* (find-files "source" "conf\\.py")
123	(("pngmath_use_preview = True")
124	"pngmath_use_preview = False"))
125	(mkdir-p html)
126	(invoke "make" "html" pyver sphinxbuild)
127	(with-directory-excursion "build/html"
128	(for-each (lambda (file)
129	(let* ((dir (dirname file))
130	(tgt-dir (string-append html "/" dir)))
131	(install-file file html)))
132	(find-files "." ".*")))))
133	#t))
134	;; Tests can only be run after the library has been installed and not
135	;; within the source directory.
136	(delete 'check)
137	(add-after 'install 'check
138	(lambda* (#:key inputs outputs #:allow-other-keys)
139	(add-installed-pythonpath inputs outputs)
140	(with-directory-excursion "/tmp"
141	(invoke "python" "-c"
142	"import scipy; scipy.test(verbose=2)")))))))
143	(home-page "https://www.scipy.org/")
144	(synopsis "The Scipy library provides efficient numerical routines")
145	(description "The SciPy library is one of the core packages that make up
146	the SciPy stack. It provides many user-friendly and efficient numerical
147	routines such as routines for numerical integration and optimization.")
148	(properties `((python2-variant . ,(delay python2-scipy))))
149	(license license:bsd-3)))
150
151	;; Version 1.2.2 is the last version to support Python 2
152	(define-public python2-scipy
153	(package
154	(inherit (package-with-python2
155	(strip-python2-variant python-scipy)))
156	(version "1.2.2")
157	(source
158	(origin
159	(method url-fetch)
160	(uri (pypi-uri "scipy" version))
161	(sha256
162	(base32
163	"1cgvgin8fvckv96hjh3ikmwkra5rif51bdb75ifzf7xbil5iwcx4"))))))
164
ca7c3653 RW	165	(define-public python-scikit-image
	166	(package
	167	(name "python-scikit-image")
	168	(version "0.14.2")
	169	(source
	170	(origin
	171	(method url-fetch)
	172	(uri (pypi-uri "scikit-image" version))
	173	(sha256
	174	(base32 "07qchljkyxvg5nrm12fvszi7pmjk4m01qp0w0z8syxzxxs20pz8s"))))
	175	(build-system python-build-system)
	176	(arguments
	177	;; TODO: Some tests require running X11 server. Disable them?
	178	'(#:tests? #f))
	179	;; See DEPENDS.txt for the list of build and run time requiremnts
	180	(propagated-inputs
	181	`(("python-cloudpickle" ,python-cloudpickle)
	182	("python-dask" ,python-dask)
	183	("python-matplotlib" ,python-matplotlib)
	184	("python-networkx" ,python-networkx)
	185	("python-numpy" ,python-numpy)
	186	("python-pillow" ,python-pillow)
	187	("python-pywavelets" ,python-pywavelets)
	188	("python-scipy" ,python-scipy)
	189	("python-six" ,python-six)))
	190	(native-inputs
	191	`(("python-cython" ,python-cython)))
082c733c	192	(home-page "https://scikit-image.org/")
ca7c3653 RW	193	(synopsis "Image processing in Python")
	194	(description
	195	"Scikit-image is a collection of algorithms for image processing.")
	196	(license license:bsd-3)))
	197
	198	(define-public python2-scikit-image
	199	(package-with-python2 python-scikit-image))
312ec128 RW	200
	201	(define-public python-pandas
	202	(package
	203	(name "python-pandas")
	204	(version "0.25.2")
	205	(source
	206	(origin
	207	(method url-fetch)
	208	(uri (pypi-uri "pandas" version))
	209	(sha256
	210	(base32 "1gp2pvzdiakvgjmykdzdlzrsfbg4vjm49jjdl9s0ha0a3yfs34fa"))))
	211	(build-system python-build-system)
	212	(arguments
	213	`(#:modules ((guix build utils)
	214	(guix build python-build-system)
	215	(ice-9 ftw)
	216	(srfi srfi-26))
	217	#:phases (modify-phases %standard-phases
	218	(add-after 'unpack 'patch-which
	219	(lambda* (#:key inputs #:allow-other-keys)
	220	(let ((which (assoc-ref inputs "which")))
	221	(substitute* "pandas/io/clipboard/__init__.py"
	222	(("^CHECK_CMD = .*")
	223	(string-append "CHECK_CMD = \"" which "\"\n"))))
	224	#t))
	225	(replace 'check
	226	(lambda _
	227	(let ((build-directory
	228	(string-append
	229	(getcwd) "/build/"
	230	(car (scandir "build"
	231	(cut string-prefix? "lib." <>))))))
	232	;; Disable the "strict data files" option which causes
	233	;; the build to error out if required data files are
	234	;; not available (as is the case with PyPI archives).
	235	(substitute* "setup.cfg"
	236	(("addopts = --strict-data-files") "addopts = "))
	237	(with-directory-excursion build-directory
	238	;; Delete tests that require "moto" which is not yet
	239	;; in Guix.
	240	(for-each delete-file
	241	'("pandas/tests/io/conftest.py"
	242	"pandas/tests/io/json/test_compression.py"
	243	"pandas/tests/io/parser/test_network.py"
	244	"pandas/tests/io/test_parquet.py"))
	245	(invoke "pytest" "-vv" "pandas" "--skip-slow"
	246	"--skip-network" "-k"
	247	;; XXX: Due to the deleted tests above.
	248	"not test_read_s3_jsonl"))))))))
	249	(propagated-inputs
	250	`(("python-numpy" ,python-numpy)
	251	("python-openpyxl" ,python-openpyxl)
	252	("python-pytz" ,python-pytz)
	253	("python-dateutil" ,python-dateutil)
	254	("python-xlrd" ,python-xlrd)))
	255	(inputs
	256	`(("which" ,which)))
	257	(native-inputs
	258	`(("python-cython" ,python-cython)
	259	("python-beautifulsoup4" ,python-beautifulsoup4)
	260	("python-lxml" ,python-lxml)
	261	("python-html5lib" ,python-html5lib)
	262	("python-nose" ,python-nose)
	263	("python-pytest" ,python-pytest)
264	("python-pytest-mock" ,python-pytest-mock)))
265	(home-page "https://pandas.pydata.org")
266	(synopsis "Data structures for data analysis, time series, and statistics")
267	(description
268	"Pandas is a Python package providing fast, flexible, and expressive data
269	structures designed to make working with structured (tabular,
270	multidimensional, potentially heterogeneous) and time series data both easy
271	and intuitive. It aims to be the fundamental high-level building block for
272	doing practical, real world data analysis in Python.")
273	(properties `((python2-variant . ,(delay python2-pandas))))
274	(license license:bsd-3)))
275
276	;; Pandas 0.24.x are the last versions that support Python 2.
277	(define-public python2-pandas
278	(let ((pandas (package-with-python2
279	(strip-python2-variant python-pandas))))
39877154 MB	280	(package
	281	(inherit pandas)
	282	(version "0.24.2")
	283	(source (origin
	284	(method url-fetch)
	285	(uri (pypi-uri "pandas" version))
	286	(sha256
	287	(base32
	288	"18imlm8xbhcbwy4wa957a1fkamrcb0z988z006jpfda3ki09z4ag"))
	289	(modules '((guix build utils)))
	290	(snippet
	291	'(begin
	292	;; Adjust for renamed error message in Python 2.7.17. Taken
	293	;; from <https://github.com/pandas-dev/pandas/pull/29294>.
	294	(substitute* "pandas/io/parsers.py"
	295	(("if 'NULL byte' in msg:")
	296	"if 'NULL byte' in msg or 'line contains NUL' in msg:"))
	297	#t)))))))