Question

我尝试使用PIP 8.1.2在Win10上的Python 3.3.5 32位上安装和使用ipdb（支持IPython的pdb）。我已经通过PIP安装（必须单独安装）在Windows cmd中没有错误：

 pip install ipdb

我写了一个简单的测试脚本，期望在打印之前停止在调试器中测试＆＃39; string， ipdb_test.py ：

import ipdb
ipdb.set_trace()
print('test')

从IDLE编辑器运行时，会出现以下异常：

Traceback (most recent call last):
  File "C:\Python33.5-32\lib\site-packages\ipdb\__main__.py", line 44, in <module>
    get_ipython
NameError: name 'get_ipython' is not defined

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:/temp/ipdb_test.py", line 1, in <module>
    import ipdb
  File "C:\Python33.5-32\lib\site-packages\ipdb\__init__.py", line 7, in <module>
    from ipdb.__main__ import set_trace, post_mortem, pm, run             # noqa
  File "C:\Python33.5-32\lib\site-packages\ipdb\__main__.py", line 51, in <module>

  (...)

  File "C:\Python33.5-32\lib\site-packages\prompt_toolkit\terminal\win32_output.py", line 266, in flush
    self.stdout.flush()
AttributeError: 'NoneType' object has no attribute 'flush'

Answer 1

由于问题似乎与IPython有关，我已经检查过在解析ipdb依赖项时安装的版本是：＆＃34; ipython-5.1.0＆＃34;。

该问题的WA解决方案发生了对IPython版本4.2.1的回退：

pip install "ipython<5"
    (...)
    Successfully uninstalled ipython-5.1.0
    Successfully installed ipython-4.2.1

之后ipdb按预期在断点处停止：

$ python C:\temp\ipdb_test.py
WARNING: Readline services not available or not loaded.
WARNING: Proper color support under MS Windows requires the pyreadline library.
You can find it at:
http://ipython.org/pyreadline.html

Defaulting color scheme to 'NoColor'
> c:\temp\ipdb_test.py(3)<module>()
      1 import ipdb
      2 ipdb.set_trace()
----> 3 print('test')

ipdb>

在这个问题上联系IPython项目团队可能是一个有效的案例，同时我发现完成调试会话的初始任务。

＆＃34;名称错误：姓名＆＃39; get_ipython＆＃39;没有定义＆＃34;通过＆＃34; import ipdb＆＃34;准备调试会话时

1 个答案: