ValueError: invalid literal for int() with base 10: ''

python 版本mcscan 分析报错

python 版本的mcscan分析最后绘制共线性绘图时报错如下：

运行命令如下：

/biosoft/miniconda/miniconda2/bin/python -m jcvi.graphics.karyotype  --format=pdf  --figsize=15x5 mcscan_seqid mcscan_layout

报错信息如下：

markers', 'networkx.algorithms.community.__future__', 'networkx.generators.atlas', 'networkx.algorithms.connectivity.edge_kcomponents', 'pkg_resources._vendor.types', 'scipy.sparse._matrix_io', 'time', 'jcvi.apps.socket', 'networkx.algorithms.flow.capacityscaling', 'networkx.algorithms.boundary', 'scipy.spatial.kdtree']
12:43:28 [__init__] CACHEDIR=/home/manager/.cache/matplotlib
12:43:28 [font_manager] Using fontManager instance from /home/manager/.cache/matplotlib/fontList.json
12:43:28 [__init__] backend agg version v2.2
12:43:28 [base] Load file `mcscan_layout`
12:43:28 [base] Load file `HVI.bed`
12:43:29 [base] Load file `OSI.bed`
Traceback (most recent call last):
  File "/biosoft/miniconda/miniconda2/lib/python2.7/runpy.py", line 174, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/biosoft/miniconda/miniconda2/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/biosoft/miniconda/miniconda2/lib/python2.7/site-packages/jcvi/graphics/karyotype.py", line 330, in <module>
    main()
  File "/biosoft/miniconda/miniconda2/lib/python2.7/site-packages/jcvi/graphics/karyotype.py", line 318, in main
    Karyotype(fig, root, seqidsfile, layoutfile)
  File "/biosoft/miniconda/miniconda2/lib/python2.7/site-packages/jcvi/graphics/karyotype.py", line 300, in __init__
    tr.draw(roundrect=roundrect, plot_label=plot_label)  # this time for real
  File "/biosoft/miniconda/miniconda2/lib/python2.7/site-packages/jcvi/graphics/karyotype.py", line 173, in draw
    si = str(int(si))
ValueError: invalid literal for int() with base 10: ''