...3/envs/jcvi/lib/python2.7/site-packages/jcvi/graphics/karyotype.py", line 281, in __init__
layout = Layout(layoutfile, generank=generank)
File "/home/chenxh/miniconda3/envs/jcvi/lib/python2.7/site-packages/jcvi/graphics/karyotype.py", line 81, in __init__
blocks = self.parse_blocks...