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ubuntu20.04报错ImportError: No module named rospkg

非凡兔 2024-10-15 阅读 1
rospython

项目场景:

rosrun diagnostic_analysis export_csv.py调用ros脚本进行数据分析


问题描述

脚本报错

Traceback (most recent call last):
  File "/opt/ros/noetic/lib/diagnostic_analysis/export_csv.py", line 40, in <module>
    import roslib; roslib.load_manifest(PKG)
  File "/opt/ros/noetic/lib/python3/dist-packages/roslib/__init__.py", line 50, in <module>
    from roslib.launcher import load_manifest  # noqa: F401
  File "/opt/ros/noetic/lib/python3/dist-packages/roslib/launcher.py", line 42, in <module>
    import rospkg
ImportError: No module named rospkg


原因分析:

使用该ros命令调用脚本时,默认使用的是python,python默认链接的是python2,而rospkg一般需要python3,导致报错


解决方案:

cd /usr/bin
sudo ln -sf /usr/bin/python3.8 python

改软链接,使python默认调用python3

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