VSCode切换Python3.9后调试超时，报pkg_resources属性错误

环境与问题现象 #

• 系统：Debian 10 (buster)
• 原生Python 3.7.3：VSCode的「Run Python File」和「Debug Python File」功能均正常运行，能在集成终端输出内容。测试脚本：

def main():
    print(f'\nHello world!\n')

if __name__=='__main__':
    main()

• 通过make altinstall安装的Python 3.9.16：「Run Python File」功能正常，但「Debug Python File」抛出错误：

Timed out while waiting for debuggee to spawn

回溯信息如下：

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/runpy.py", line 197, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/usr/local/lib/python3.9/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/home/airnd/.vscode-server/extensions/ms-python.python-2023.4.0/pythonFiles/lib/python/debugpy/adapter/../../debugpy/launcher/../../debugpy/__main__.py", line 37, in <module>
    from debugpy.server import cli
  File "/home/airnd/.vscode-server/extensions/ms-python.python-2023.4.0/pythonFiles/lib/python/debugpy/adapter/../../debugpy/launcher/../../debugpy/../debugpy/server/__init__.py", line 7, in <module>
    import debugpy._vendored.force_pydevd  # noqa
  File "/home/airnd/.vscode-server/extensions/ms-python.python-2023.4.0/pythonFiles/lib/python/debugpy/adapter/../../debugpy/launcher/../../debugpy/../debugpy/_vendored/force_pydevd.py", line 40, in <module>
    preimport('pydevd', [
  File "/home/airnd/.vscode-server/extensions/ms-python.python-2023.4.0/pythonFiles/lib/python/debugpy/adapter/../../debugpy/launcher/../../debugpy/../debugpy/_vendored/__init__.py", line 126, in preimport
    import_module(name)
  File "/usr/local/lib/python3.9/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "/home/airnd/.vscode-server/extensions/ms-python.python-2023.4.0/pythonFiles/lib/python/debugpy/_vendored/pydevd/pydevd_plugins/__init__.py", line 5, in <module>
    __import__('pkg_resources').declare_namespace(__name__)
AttributeError: module 'pkg_resources' has no attribute 'declare_namespace'

版本信息 #

• VSCode 1.76.0
• vscode-python v2023.4.0
• debugpy 1.6.6
• Python 3.7.3 / Python 3.9.16

已尝试的解决措施 #

• 重装setuptools
• 更换旧版本setuptools
• 降级vscode-python版本

以上措施均未解决问题，寻求有效解决方案。

内容的提问来源于stack exchange，提问作者Viktor Katzy