在Mac上运行sugiyama.py时出现lxml错误

Question

最近我想在Mac上尝试flow-project，在安装了所有的需求并尝试运行python examples/sumo/sugiyama.py之后，我得到了一个错误，如下所述。你能帮我解题吗？

Traceback (most recent call last):
  File "examples/sumo/sugiyama.py", line 7, in <module>
    from flow.core.experiment import Experiment
  File "/Users/voanhkha/Desktop/flow/flow/core/experiment.py", line 9, in <module>
    from flow.core.util import emission_to_csv
  File "/Users/voanhkha/Desktop/flow/flow/core/util.py", line 6, in <module>
    from lxml import etree
ImportError: dlopen(/Users/voanhkha/anaconda3/envs/flow/lib/python3.6/site-packages/lxml/etree.cpython-36m-darwin.so, 2): no suitable image found.  Did find:
    /Users/voanhkha/anaconda3/envs/flow/lib/python3.6/site-packages/lxml/etree.cpython-36m-darwin.so: unknown file type, first eight bytes: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
    /Users/voanhkha/anaconda3/envs/flow/lib/python3.6/site-packages/lxml/etree.cpython-36m-darwin.so: unknown file type, first eight bytes: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00

Answer 1

我遇到了同样的问题，卸载了lxml的conda版本，然后用pip重新安装了它。

conda uninstall lxml
pip install lxml