Drop SPARQLWrapper from the required install inputs under Python 2, as it
creates a circular dependency.

diff -u rdflib-4.1.2.alt/setup.py rdflib-4.1.2/setup.py
--- rdflib-4.1.2.alt/setup.py	2014-03-04 12:40:26.000000000 +0100
+++ rdflib-4.1.2/setup.py	2015-01-23 21:52:59.000000000 +0100
@@ -52,7 +52,7 @@
         kwargs['test_suite'] = "nose.collector"
         kwargs['install_requires'] = [
             'isodate',
-            'pyparsing', 'SPARQLWrapper']
+            'pyparsing']
 
         if sys.version_info[1]<7:  # Python 2.6
             kwargs['install_requires'].append('ordereddict')

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<tr><td><span title='2019-02-09 21:53:41 +0100'>2019-02-09</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=a555c3f4386a4cbb2abae52768dbca408a8ad9da'>gnu: swig: Fix FTBFS with GCC &gt;= 6.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2018-10-18 19:13:13 +0200'>2018-10-18</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=e8ef3cc4d62d573db5e7338a0342ef20df5f8b4d'>gnu: swig: Fix build on i686.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2018-05-30 02:18:26 -0400'>2018-05-30</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=a21bcd70792af2a618237cae75b51194482c24ea'>Revert "gnu: swig: Patch for Octave 4.4."</a><span class='msg-avail'>...</span></td><td>Mark H Weaver</td></tr>
<tr><td><span title='2018-05-29 18:20:38 -0400'>2018-05-29</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=3771000f893d4b53e302f5bca07afeba69e76cd4'>gnu: swig: Patch for Octave 4.4.</a><span class='msg-avail'>...</span></td><td>Kei Kebreau</td></tr>
<tr><td><span title='2017-06-14 10:24:03 -0400'>2017-06-14</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=503c8c5882550005a7e9d3058a5f6d22f9c33f63'>gnu: swig: Fix build with Perl 5.26.0.</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2017-06-14 10:24:03 -0400'>2017-06-14</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=0122a869ac7bba4cc1ac6f81c268dde33d8749f4'>gnu: swig: Update to 3.0.12.</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2016-11-21 11:10:06 -0500'>2016-11-21</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=6305b81fedd503aef8bb92bfab2cfbb6d4f76935'>gnu: swig: Update to 3.0.10.</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2016-07-29 14:18:07 -0400'>2016-07-29</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=0bab3af0786ffd4caec05a29d7281ac5e5c18b6b'>Merge branch 'master' into core-updates</a></td><td>Mark H Weaver</td></tr>
<tr><td><span title='2016-07-29 17:35:20 +0200'>2016-07-29</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=0160458bf8a2a77a3ec0283b4bb98fb477ed09f9'>gnu: Use define-public to export packages.</a><span class='msg-avail'>...</span></td><td>David Craven</td></tr>
<tr><td><span title='2016-07-22 18:58:31 -0400'>2016-07-22</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=d227260d2f7833b6bdc55b8e3792378626ef3b69'>Merge branch 'master' into core-updates</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2016-07-21 18:09:40 -0400'>2016-07-21</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=de67e922885baf68a746a0484ca0b45e45b0964b'>gnu: Update URLs for sourceforge.net.</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2016-06-13 09:42:55 +0200'>2016-06-13</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=809f17628ffcac04bf7b194c6ee5ef0c872db73d'>gnu: swig: Adjust to pcre output split.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2015-06-18 09:46:55 -0400'>2015-06-18</span></td><td><a href='/guix/commit/gnu/packages/swig.scm?id=8cbb562020be112aad884989392ab9eb6c45f79a'>gnu: swig: Update to 3.0.5.</a><span class='msg-avail'>...</span></td><td>Mark H Weaver</td></tr>