ipython 7.10.1 and ipdb 0.12.3

[JBKahn]

I'm currently running into an issue with inputhook

In [1]: import ipdb; ipdb.set_trace()
<IPython.terminal.debugger.TerminalPdb object at 0x7fbca4678b50>
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-1-f3f8e0a2fcd8> in <module>
----> 1 import ipdb; ipdb.set_trace()

/usr/local/lib/python3.8/site-packages/ipdb/__main__.py in set_trace(frame, context)
     65     if frame is None:
     66         frame = sys._getframe().f_back
---> 67     p = _init_pdb(context).set_trace(frame)
     68     if p and hasattr(p, 'shell'):
     69         p.shell.restore_sys_module_state()

/usr/local/lib/python3.8/site-packages/ipdb/__main__.py in _init_pdb(context, commands)
     46 def _init_pdb(context=3, commands=[]):
     47     try:
---> 48         p = debugger_cls(context=context)
     49     except TypeError:
     50         p = debugger_cls()

/usr/local/lib/python3.8/site-packages/IPython/terminal/debugger.py in __init__(self, *args, **kwargs)
     28         Pdb.__init__(self, *args, **kwargs)
     29         self._ptcomp = None
---> 30         self.pt_init()
     31
     32     def pt_init(self):

/usr/local/lib/python3.8/site-packages/IPython/terminal/debugger.py in pt_init(self)
     68         if not PTK3:
     69             print(self)
---> 70             options['inputhook'] = self.inputhook
     71         self.pt_app = PromptSession(**options)
     72

AttributeError: 'TerminalPdb' object has no attribute 'inputhook'

I'm trying to investigate and I'll update with my own findings

[JBKahn]

I found if I add debugger_cls.inputhook = None before p = debugger_cls(context=context) that allows it to continue but I'm not sure what the actual fix is.

[JBKahn]

This doesn't seem to be a duplicate of ipython/ipython#11979 but is actually an issue with the ipdb code. In that the self or TerminalPdb is missing the attribute, nothing to do with the options it is passing down.

[JBKahn]

Ahhh I take it back, if you look at ipython/ipython#11979 it seems it introduced an accidental code change from self.shell.inputhook to self.inputhook

[JBKahn]

This seems like an Ipython issue so I'll close it out @gotcha

[JBKahn]

I opened a PR here: ipython/ipython#12003

[szeitlin]

@JBKahn I ran into the same bug, so I tried adding your fix, but I'm still seeing a failure when I try to debug within a unit test. But now I'm getting `AttributeError: 'TerminalInteractiveShell' object has no attribute 'shell'. Do you know if there were a lot of other changes made recently to your working version, or if there will be an update released soon?

I'm on python 3.7, ipython 7.10.1, ipdb 0.12.3.

[JBKahn]

This I think @szeitlin ipython/ipython#12007

[JBKahn]

But other than that I'm not sure. I'm not currently using my fix since ipython hasn't released a new version yet. I just pinned to 7.9

[JBKahn]

Can you please post the entire error, I can try to help you debug

[szeitlin]

File "/Users/samantha.zeitlin/[redacted]", line 72, in [method] import ipdb; ipdb.set_trace() File "/opt/anaconda3/envs/eda/lib/python3.7/site-packages/ipdb/__init__.py", line 7, in <module> from ipdb.__main__ import set_trace, post_mortem, pm, run # noqa File "/opt/anaconda3/envs/eda/lib/python3.7/site-packages/ipdb/__main__.py", line 29, in <module> ipapp.initialize(['--no-term-title']) File "</opt/anaconda3/envs/eda/lib/python3.7/site-packages/decorator.py:decorator-gen-113>", line 2, in initialize File "/opt/anaconda3/envs/eda/lib/python3.7/site-packages/traitlets/config/application.py", line 87, in catch_config_error return method(app, *args, **kwargs) File "/opt/anaconda3/envs/eda/lib/python3.7/site-packages/IPython/terminal/ipapp.py", line 317, in initialize self.init_shell() File "/opt/anaconda3/envs/eda/lib/python3.7/site-packages/IPython/terminal/ipapp.py", line 333, in init_shell ipython_dir=self.ipython_dir, user_ns=self.user_ns) File "/opt/anaconda3/envs/eda/lib/python3.7/site-packages/traitlets/config/configurable.py", line 412, in instance inst = cls(*args, **kwargs) File "/opt/anaconda3/envs/eda/lib/python3.7/site-packages/IPython/terminal/interactiveshell.py", line 514, in __init__ self.init_prompt_toolkit_cli() File "/opt/anaconda3/envs/eda/lib/python3.7/site-packages/IPython/terminal/interactiveshell.py", line 325, in init_prompt_toolkit_cli **self._extra_prompt_options()) File "/opt/anaconda3/envs/eda/lib/python3.7/site-packages/IPython/terminal/interactiveshell.py", line 441, in _extra_prompt_options options['inputhook'] = self.shell.inputhook AttributeError: 'TerminalInteractiveShell' object has no attribute 'shell'

[szeitlin]

in the meantime I may try downgrading to 7.9 since I don't think I care too much about having the very latest version?

[JBKahn]

Try this: ipython/ipython#12007