Between commits 2e0d02ebe351024cd97911cb1e5e1a6af1edc7f0..93baba64753d4f8543b38a3a6092b7a71b79b246, the pytest2-cov package broke, which in turns breaks the important package wicd.
https://ci.guix.gnu.org/build/791078/details ------ starting phase `build' running "python setup.py" with command "build" and parameters () Traceback (most recent call last): File "<string>", line 1, in <module> File "setup.py", line 87, in <module> long_description='{}\n{}'.format(read('README.rst'), re.sub(':[a-z]+:`~?(.*?)`', r'``\1``', read('CHANGELOG.rst'))), File "setup.py", line 23, in read encoding=kwargs.get('encoding', 'utf8') TypeError: 'encoding' is an invalid keyword argument for this function error: in phase 'build': uncaught exception: %exception #<&invoke-error program: "python" arguments: ("-c" "import setuptools, tokenize;__file__='setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\\r\\n', '\\n');f.close();exec(compile(code, __file__, 'exec'))" "build") exit-status: 1 term-signal: #f stop-signal: #f> phase `build' failed after 0.3 seconds command "python" "-c" "import setuptools, tokenize;__file__='setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\\r\\n', '\\n');f.close();exec(compile(code, __file__, 'exec'))" "build" failed with status 1 builder for `/gnu/store/gdmcpvplhj91149grnwc443fhbmi3jfv-python2-pytest-cov-3.0.0.drv' failed with exit code 1 build of /gnu/store/gdmcpvplhj91149grnwc443fhbmi3jfv-python2-pytest-cov-3.0.0.drv failed ------
