PyDev 在内置断点处中断

Question

PyDev 在 Python 代码中的内置断点处中断，并出现以下错误。

warning: Debugger speedups using cython not found. Run '"/Users/Work/opt/anaconda3/envs/ch_dev37/bin/python" "/Applications/Eclipse.app/Contents/Eclipse/plugins/org.python.pydev.core_8.0.1.202011071328/pysrc/setup_cython.py" build_ext --inplace' to build.
Could not connect to 127.0.0.1: 5678
Traceback (most recent call last):
  File "/Applications/Eclipse.app/Contents/Eclipse/plugins/org.python.pydev.core_8.0.1.202011071328/pysrc/_pydevd_bundle/pydevd_comm.py", line 462, in start_client
    s.connect((host, port))
ConnectionRefusedError: [Errno 61] Connection refused
Traceback (most recent call last):
  File "/Volumes/GoogleDrive/My Drive/free_energy_data/write_energies.py", line 111, in <module>
    write_gases, write_adsorbates, verbose)
  File "/Users/Work/opt/dev/gits/CatHub/cathub/catmap_interface.py", line 31, in write_energies
    breakpoint()
  File "/Applications/Eclipse.app/Contents/Eclipse/plugins/org.python.pydev.core_8.0.1.202011071328/pysrc/pydev_sitecustomize/sitecustomize.py", line 74, in custom_sitecustomize_breakpointhook
    pydevd.settrace(*args, **kwargs)
  File "/Applications/Eclipse.app/Contents/Eclipse/plugins/org.python.pydev.core_8.0.1.202011071328/pysrc/pydevd.py", line 2623, in settrace
    notify_stdin=notify_stdin,
  File "/Applications/Eclipse.app/Contents/Eclipse/plugins/org.python.pydev.core_8.0.1.202011071328/pysrc/pydevd.py", line 2688, in _locked_settrace
    py_db.connect(host, port)  # Note: connect can raise error.
  File "/Applications/Eclipse.app/Contents/Eclipse/plugins/org.python.pydev.core_8.0.1.202011071328/pysrc/pydevd.py", line 1262, in connect
    s = start_client(host, port)
  File "/Applications/Eclipse.app/Contents/Eclipse/plugins/org.python.pydev.core_8.0.1.202011071328/pysrc/_pydevd_bundle/pydevd_comm.py", line 462, in start_client
    s.connect((host, port))
ConnectionRefusedError: [Errno 61] Connection refused

我正在使用 GUI 中的“运行”选项（附件图像中的播放按钮）运行 Python 代码。

这种行为令人惊讶，因为正如 release notes 所说，自 PyDev 的早期版本 (v6.5.0) 以来就已支持 breakpoint() 内置函数。到目前为止，我已经使用import pdb; pdb.set_trace() 作为断点，它仍然运行良好。内置的 breakpoint() 在终端中的 PyDev 之外运行良好，没有任何问题。

其他详情：

Python Version: 3.7.8
Eclipse Version: 2020-09 (4.17.0)
PyDev Version: 8.0.1
Device: MacBook Pro
OS: macOS Big Sur 11.0.1

Answer 1

在这种情况下，breakpoint() 尝试使用Remote Debugger 连接到 IDE，而ConnectionRefusedError: [Errno 61] Connection refused 表示您尚未在客户端启动远程调试器。

因此，要解决此问题，请在运行之前在客户端启动调试服务器（然后在启动时它将在没有附加调试器的情况下运行，直到达到breakpoint()）。

有关如何在客户端启动远程调试器的信息，请参阅：https://www.pydev.org/manual_adv_remote_debugger.html。