Spyder: Another KeyError when folding regions

[nranthony]

Description

What steps will reproduce the problem?

selected variable inspection window for a dataframe, then selected between another variable inspection window for a dict. Recieved an error about mismatch (or something between the two, don't recall), and then returning to editor hit backspace a few times to delete and it crashed

Traceback

  File "C:\Users\nellypledge\anaconda3\lib\site-packages\spyder\plugins\editor\utils\editor.py", line 161, in _exec_requested_job
    self._job(*self._args, **self._kwargs)
  File "C:\Users\nellypledge\anaconda3\lib\site-packages\spyder\plugins\editor\panels\codefolding.py", line 451, in _highlight_block
    end_line = self.folding_regions[block_line]
KeyError: 67

Versions

• Spyder version: 4.1.3
• Python version: 3.7.7
• Qt version: 5.9.6
• PyQt5 version: 5.9.2
• Operating System: Windows 10

Dependencies

# Mandatory:
atomicwrites >=1.2.0           :  1.4.0 (OK)
chardet >=2.0.0                :  3.0.4 (OK)
cloudpickle >=0.5.0            :  1.4.1 (OK)
diff_match_patch >=20181111    :  20181111 (OK)
intervaltree                   :  None (OK)
IPython >=4.0                  :  7.15.0 (OK)
jedi =0.15.2                   :  0.15.2 (OK)
nbconvert >=4.0                :  5.6.1 (OK)
numpydoc >=0.6.0               :  1.0.0 (OK)
paramiko >=2.4.0               :  2.7.1 (OK)
parso =0.5.2                   :  0.5.2 (OK)
pexpect >=4.4.0                :  4.8.0 (OK)
pickleshare >=0.4              :  0.7.5 (OK)
psutil >=5.3                   :  5.7.0 (OK)
pygments >=2.0                 :  2.6.1 (OK)
pylint >=0.25                  :  2.4.4 (OK)
pyls >=0.31.9;<0.32.0          :  0.31.10 (OK)
qdarkstyle >=2.8               :  2.8.1 (OK)
qtawesome >=0.5.7              :  0.7.2 (OK)
qtconsole >=4.6.0              :  4.7.5 (OK)
qtpy >=1.5.0                   :  1.9.0 (OK)
rtree >=0.8.3                  :  0.9.4 (OK)
sphinx >=0.6.6                 :  3.1.1 (OK)
spyder_kernels >=1.9.1;<1.10.0 :  1.9.1 (OK)
watchdog                       :  None (OK)
zmq >=17                       :  19.0.1 (OK)

# Optional:
cython >=0.21                  :  0.29.20 (OK)
matplotlib >=2.0.0             :  3.2.2 (OK)
numpy >=1.7                    :  1.18.5 (OK)
pandas >=0.13.1                :  1.0.5 (OK)
scipy >=0.17.0                 :  1.5.0 (OK)
sympy >=0.7.3                  :  1.6 (OK)

[dalthviz]

Hi @nranthony seems like this issue was fixed by #11310 and you should have the fix since the version you are using is 4.1.3. Could you give us an example code snippet to replicate the issue please?

This is kind of strange what do you think @ccordoba12 ?

[nranthony]

I'm sorry, I can't recreate. I don't know what caused it at this point. The auto submit popped up and I added as much as I could recall.

[dalthviz]

Don't worry @nranthony thanks for the feedback !

There isn't much that we can do with out a way to reproduce the issue for the moment. However, if you manage to figure out a way to reproduce this let us know :)

[ccordoba12]

This is kind of strange what do you think @ccordoba12 ?

Although perhaps there's no easy way to reproduce this, it can still happen because #11310 added a try/except around _highlight_runner, but there are other calls to _highlight_block in codefolding.py that are not protected by that.

@steff456, please add a try/except KeyError around those other calls to _highlight_block in that file.

[nranthony]

Cool, thanks for your time on these things. I'll convey anything that happens that might be helpful.