Language snippets issue - internal error

Description

What steps will reproduce the problem?

I have reproduced this several times but it is not entirely consistent (doesn’t happen every time).

Split/unsplit a line with a carriage return. Spyder will sometimes run into an internal problem.

Edit: I think the line needs to be a function definition and you need to split just before an argument name.

Traceback

  File "C:\Users\_username_\Anaconda3\lib\site-packages\spyder\plugins\completion\snippets\actor.py", line 92, in handle_msg
    if language_snippets[current_word]:
  File "C:\Users\_username_\Anaconda3\lib\site-packages\spyder\plugins\completion\snippets\trie.py", line 81, in __getitem__
    if len(sequence) == 0:
TypeError: object of type 'NoneType' has no len()

Versions

• Spyder version: 4.2.0
• Python version: 3.8.3
• Qt version: 5.9.7
• 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             :  1.6.0 (OK)
diff_match_patch >=20181111     :  20200713 (OK)
intervaltree >=3.0.2            :  3.1.0 (OK)
IPython >=4.0                   :  7.19.0 (OK)
jedi =0.17.2                    :  0.17.2 (OK)
jsonschema >=3.2.0              :  3.2.0 (OK)
nbconvert >=4.0                 :  6.0.7 (OK)
numpydoc >=0.6.0                :  1.1.0 (OK)
paramiko >=2.4.0                :  2.7.2 (OK)
parso =0.7.0                    :  0.7.0 (OK)
pexpect >=4.4.0                 :  4.8.0 (OK)
pickleshare >=0.4               :  0.7.5 (OK)
psutil >=5.3                    :  5.7.2 (OK)
pygments >=2.0                  :  2.7.3 (OK)
pylint >=1.0                    :  2.6.0 (OK)
pyls >=0.36.1;<1.0.0            :  0.36.2 (OK)
pyls_black >=0.4.6              :  0.4.6 (OK)
pyls_spyder >=0.1.1             :  0.2.1 (OK)
qdarkstyle >=2.8                :  2.8.1 (OK)
qtawesome >=0.5.7               :  1.0.1 (OK)
qtconsole >=4.7.7               :  4.7.7 (OK)
qtpy >=1.5.0                    :  1.9.0 (OK)
rtree >=0.8.3                   :  0.9.4 (OK)
setuptools >=39.0.0             :  51.0.0.post20201207 (OK)
sphinx >=0.6.6                  :  3.2.1 (OK)
spyder_kernels >=1.10.0;<1.11.0 :  1.10.0 (OK)
three_merge >=0.1.1             :  0.1.1 (OK)
watchdog >=0.10.3               :  0.10.4 (OK)
zmq >=17                        :  20.0.0 (OK)

# Optional:
cython >=0.21                   :  0.29.21 (OK)
matplotlib >=2.0.0              :  3.3.2 (OK)
numpy >=1.7                     :  1.19.2 (OK)
pandas >=1.1.1                  :  1.1.3 (OK)
scipy >=0.17.0                  :  1.5.2 (OK)
sympy >=0.7.3                   :  1.6.2 (OK)

[bsumlin]

Per request, here’s the column I copy/pasted from Excel into the IDE to get the crash:

300.7762 349.9783 400.7137 449.9049 500.633 549.8205 600.5432 649.7289 700.4497 749.6336 800.3526 849.5347 900.2555 950.9763 1000.157 1050.876 1100.059 1150.778 1199.959

The crash happened when I was editing the column to be a list, therefore I guess I was splitting and unsplitting lines with a carriage return.

[steff456]

It seems this issue is a duplicate of #14183 fixed by #14186, it will be part of our next release. You can follow us in social media if you want to keep track and update as soon as it is available.

Thanks all of reporting this issue and answering so fast!