jcvi.compara.catalog ortholog error

[biopig]

我用conda安装的jcvi，当我运行python3 -m jcvi.compara.catalog ortholog时报错，请问这是怎么回事呀

Traceback (most recent call last): File "/public/home/yangjp/miniconda3/envs/jcvi/lib/python3.6/runpy.py", line 193, in _run_module_as_main "main", mod_spec) File "/public/home/yangjp/miniconda3/envs/jcvi/lib/python3.6/runpy.py", line 85, in _run_code exec(code, run_globals) File "/public/home/yangjp/miniconda3/envs/jcvi/lib/python3.6/site-packages/jcvi/compara/catalog.py", line 947, in main() File "/public/home/yangjp/miniconda3/envs/jcvi/lib/python3.6/site-packages/jcvi/compara/catalog.py", line 78, in main p.dispatch(globals()) File "/public/home/yangjp/miniconda3/envs/jcvi/lib/python3.6/site-packages/jcvi/apps/base.py", line 110, in dispatch globalsaction File "/public/home/yangjp/miniconda3/envs/jcvi/lib/python3.6/site-packages/jcvi/compara/catalog.py", line 656, in ortholog p.set_dotplot_opts() File "/public/home/yangjp/miniconda3/envs/jcvi/lib/python3.6/site-packages/jcvi/apps/base.py", line 594, in set_dotplot_opts from jcvi.graphics.base import set1 File "/public/home/yangjp/miniconda3/envs/jcvi/lib/python3.6/site-packages/jcvi/graphics/base.py", line 19, in import matplotlib.pyplot as plt File "/public/home/yangjp/miniconda3/envs/jcvi/lib/python3.6/site-packages/matplotlib/pyplot.py", line 43, in from matplotlib.figure import Figure, figaspect File "/public/home/yangjp/miniconda3/envs/jcvi/lib/python3.6/site-packages/matplotlib/figure.py", line 18, in from matplotlib import docstring, projections File "/public/home/yangjp/miniconda3/envs/jcvi/lib/python3.6/site-packages/matplotlib/projections/init.py", line 1, in from .. import axes, docstring File "/public/home/yangjp/miniconda3/envs/jcvi/lib/python3.6/site-packages/matplotlib/axes/init.py", line 1, in from ._subplots import * File "/public/home/yangjp/miniconda3/envs/jcvi/lib/python3.6/site-packages/matplotlib/axes/_subplots.py", line 6, in from matplotlib.axes._axes import Axes File "/public/home/yangjp/miniconda3/envs/jcvi/lib/python3.6/site-packages/matplotlib/axes/_axes.py", line 10, in import matplotlib.category # Register category unit converter as side-effect. File "/public/home/yangjp/miniconda3/envs/jcvi/lib/python3.6/site-packages/matplotlib/category.py", line 14, in import dateutil.parser File "/public/home/yangjp/miniconda3/envs/jcvi/lib/python3.6/site-packages/dateutil/parser/init.py", line 8, in from .isoparser import isoparser, isoparse ValueError: source code string cannot contain null bytes