gnu: Add python-pydicom.

* gnu/packages/python-science.scm (python-pydicom): New variable.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu/packages/python-science.scm

@@ -20,6 +20,7 @@
 ;;; Copyright © 2022 Paul A. Patience <paul@apatience.com>
 ;;; Copyright © 2022 Wiktor Żelazny <wzelazny@vurv.cz>
 ;;; Copyright © 2022 Eric Bavier <bavier@posteo.net>
+;;; Copyright © 2022 Antero Mejr <antero@mailbox.org>
 ;;; Copyright © 2022 jgart <jgart@dismail.de>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -49,6 +50,7 @@
   #:use-module (gnu packages crypto)
   #:use-module (gnu packages databases)
   #:use-module (gnu packages gcc)
+  #:use-module (gnu packages image)
   #:use-module (gnu packages image-processing)
   #:use-module (gnu packages machine-learning)
   #:use-module (gnu packages maths)
@@ -1488,6 +1490,55 @@ Python, from the Sheffield machine learning group.  GPy implements a range of
 machine learning algorithms based on GPs.")
     (license license:bsd-3)))
 
+(define-public python-pydicom
+  (package
+    (name "python-pydicom")
+    (version "2.3.0")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/pydicom/pydicom")
+                    (commit (string-append "v" version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "18l26s53yf5j9yh2zwq83n74qq4f2iq0cfblamsw4y9k35l1c108"))))
+    (build-system python-build-system)
+    (arguments
+     (list
+      #:phases
+      #~(modify-phases %standard-phases
+         (replace 'check
+           (lambda* (#:key tests? #:allow-other-keys)
+             (when tests?
+               (chdir "pydicom/tests")
+               (invoke "python3" "-m" "pytest" "-k" ;skip tests using web data
+                       (string-append
+                        "not test_jpeg_ls_pixel_data.py"
+                        " and not test_gdcm_pixel_data.py"
+                        " and not test_pillow_pixel_data.py"
+                        " and not test_rle_pixel_data.py"
+                        " and not Test_JPEG_LS_Lossless_transfer_syntax"
+                        " and not test_numpy_pixel_data.py"
+                        " and not test_data_manager.py"
+                        " and not test_handler_util.py"
+                        " and not test_overlay_np.py"
+                        " and not test_encoders_pydicom.py"
+                        " and not test_encaps.py"
+                        " and not test_reading_ds_with_known_tags_with_UN_VR"
+                        " and not TestDatasetOverlayArray"
+                        " and not TestReader"
+                        " and not test_filewriter.py"))))))))
+    (native-inputs (list python-pytest))
+    (inputs (list gdcm libjpeg-turbo))
+    (propagated-inputs (list python-numpy python-pillow))
+    (home-page "https://github.com/pydicom/pydicom")
+    (synopsis "Python library for reading and writing DICOM data")
+    (description "@code{python-pydicom} is a Python library for reading and
+writing DICOM medical imaging data.  It lets developers read, modify and write
+DICOM data in a pythonic way.")
+    (license license:expat)))
+
 (define-public python-deepdish
   (package
     (name "python-deepdish")