We have an optional package for PyX-0.10 (recent versions are 0.14). After
installing it pip stops working with the message like
Traceback (most recent call last):
File "/home/sc_serv/sage/local/bin/pip", line 5, in <module>
from pkg_resources import load_entry_point
File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line 2912,
in <module>
File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line 2898,
in _call_aside
File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line 2925,
in _initialize_master_working_set
File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line 633,
in _build_master
File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line 626,
in __init__
File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line 682,
in add_entry
File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line 1956,
in find_on_path
File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line 2343,
in from_location
File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line 2660,
in _reload_version
File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line 2308,
in _version_from_file
File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line 2476,
in _get_metadata
File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line 1847,
in get_metadata_lines
File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line 1842,
in get_metadata
File "/home/sc_serv/sage/local/lib/python/codecs.py", line 302, in decode
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf8' codec can't decode byte 0xf6 in position 165:
invalid start byte
which seems to be due to author's name with non-Latin characters.
Installing PyX through pip does not work for some reason, but I think it
should be removed from optional packages as it breaks pip which is way more
important.
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