From 0f272518eca06f849cef86d26c294f17edc82c3e Mon Sep 17 00:00:00 2001
From: Ricardo Wurmus <rekado@elephly.net>
Date: Wed, 11 Sep 2019 23:29:07 +0200
Subject: [PATCH] gnu: python-ipython-documentation: Make reproducible.

Fixes <https://bugs.gnu.org/37373/>.

* gnu/packages/python-xyz.scm (python-ipython)[arguments]: Add phase
"make-docs-reproducible" to remove timestamps from documentation generated in
dependent python-ipython-documentation package.
---
 gnu/packages/python-xyz.scm | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index 819b3045a3..00bffca74a 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -5399,6 +5399,13 @@ computing.")
     (arguments
      `(#:phases
        (modify-phases %standard-phases
+         (add-after 'unpack 'make-docs-reproducible
+           (lambda _
+             (substitute* "IPython/sphinxext/ipython_directive.py"
+               ((".*import datetime") "")
+               ((".*datetime.datetime.now\\(\\)") "")
+               (("%timeit") "# %timeit"))
+             #t))
          ;; Tests can only be run after the library has been installed and not
          ;; within the source directory.
          (delete 'check)