Traceback (most recent call last):
  File "/home/xu/ros2ln/chapt2/node.py", line 1, in <module>
    import rclpy
  File "/opt/ros/humble/local/lib/python3.10/dist-packages/rclpy/__init__.py", line 49, in <module>
    from rclpy.signals import install_signal_handlers
  File "/opt/ros/humble/local/lib/python3.10/dist-packages/rclpy/signals.py", line 15, in <module>
    from rclpy.exceptions import InvalidHandle
  File "/opt/ros/humble/local/lib/python3.10/dist-packages/rclpy/exceptions.py", line 15, in <module>
    from rclpy.impl.implementation_singleton import rclpy_implementation as _rclpy
  File "/opt/ros/humble/local/lib/python3.10/dist-packages/rclpy/impl/implementation_singleton.py", line 32, in <module>
    rclpy_implementation = import_c_library('._rclpy_pybind11', package)
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/ros/humble/lib/python3.10/site-packages/rpyutils/import_c_library.py", line 39, in import_c_library
    return importlib.import_module(name, package=package)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/xu/anaconda3/lib/python3.12/importlib/__init__.py", line 90, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ModuleNotFoundError: No module named 'rclpy._rclpy_pybind11'
The C extension '/opt/ros/humble/lib/python3.10/site-packages/_rclpy_pybind11.cpython-312-x86_64-linux-gnu.so' isn't present on the system. Please refer to 'https://docs.ros.org/en/humble/Guides/Installation-Troubleshooting.html#import-failing-without-library-present-on-the-system' for possible solutions

        在我运行py代码的时候发生如上报错，经过之前的经验可能是ros和anaconda 的python版本不兼容产生的报错。直接退出conda环境：

conda deactivate

        即可使用python3运行。