Spyder 6: Code analysis truncates error source in long messages

[bessman]

Issue Report Checklist

• Searched the issues page for similar reports
• Read the relevant sections of the Spyder Troubleshooting Guide and followed its advice
• Reproduced the issue after updating with conda update spyder (or pip, if not using Anaconda)
• Could not reproduce inside jupyter qtconsole (if console-related)
• Tried basic troubleshooting (if a bug/error)
  • Restarted Spyder
  • Reset preferences with spyder --reset
  • Reinstalled the latest version of Anaconda
  • Tried the other applicable steps from the Troubleshooting Guide
• Completed the Problem Description, Steps to Reproduce and Version sections below

Problem Description

In Spyder 6.0.0b1, inline code analysis is truncated and does not show the source of the error, see attached image:

Compare with Spyder 5.5.4:

In this case, the error (mypy str-bytes-safe) comes via pylsp-mypy, in case it's relevant.

What steps reproduce the problem?

1. Install pylsp-mypy.
2. Write f"{b''}" in a new file and save it.

The same thing may happen with long error messages other than str-bytes-safe, but I haven't been able to find one long enough to test.

What is the expected output? What do you see instead?

The output should not be truncated, or should include the error source (mypy str-bytes-safe in this case) even after truncation.

Versions

• Spyder version: 6.0.0b1 (pip)
• Python version: 3.9.19 64-bit
• Qt version: 5.15.2
• PyQt5 version: 5.15.6
• Operating System: Linux-5.4.0-113-generic-x86_64-with-glibc2.31

Dependencies

# Mandatory:
aiohttp >=3.9.3                   :  3.9.5 (OK)
asyncssh >=2.0.0,<3.0.0           :  2.14.2 (OK)
atomicwrites >=1.2.0              :  1.4.0 (OK)
chardet >=2.0.0                   :  4.0.0 (OK)
cloudpickle >=0.5.0               :  2.1.0 (OK)
cookiecutter >=1.6.0              :  1.7.3 (OK)
diff_match_patch >=20181111       :  20200713 (OK)
intervaltree >=3.0.2              :  3.1.0 (OK)
IPython >=8.13.0,<9.0.0,!=8.17.1  :  8.18.1 (OK)
jedi >=0.17.2,<0.20.0             :  0.18.1 (OK)
jellyfish >=0.7                   :  0.9.0 (OK)
jsonschema >=3.2.0                :  4.5.1 (OK)
keyring >=17.0.0                  :  23.5.1 (OK)
nbconvert >=4.0                   :  6.5.0 (OK)
numpydoc >=0.6.0                  :  1.3.1 (OK)
parso >=0.7.0,<0.9.0              :  0.8.3 (OK)
pexpect >=4.4.0                   :  4.8.0 (OK)
pickleshare >=0.4                 :  0.7.5 (OK)
psutil >=5.3                      :  5.9.1 (OK)
pygments >=2.0                    :  2.17.2 (OK)
pylint >=3.1,<4                   :  3.1.0 (OK)
pylint_venv >=3.0.2               :  3.0.2 (OK)
pyls_spyder >=0.4.0               :  0.4.0 (OK)
pylsp >=1.11.0,<1.12.0            :  1.11.0 (OK)
pylsp_black >=2.0.0,<3.0.0        :  2.0.0 (OK)
pyuca >=1.2                       :  1.2 (OK)
qdarkstyle >=3.2.0,<3.3.0         :  3.2.3 (OK)
qstylizer >=0.2.2                 :  0.2.2 (OK)
qtawesome >=1.3.1,<1.4.0          :  1.3.1 (OK)
qtconsole >=5.5.1,<5.6.0          :  5.5.1 (OK)
qtpy >=2.4.0                      :  2.4.1 (OK)
rtree >=0.9.7                     :  1.0.0 (OK)
setuptools >=49.6.0               :  62.3.2 (OK)
sphinx >=0.6.6                    :  4.5.0 (OK)
spyder_kernels >=3.0.0b6,<3.0.0b7 :  3.0.0b6 (OK)
superqt >=0.6.1,<1.0.0            :  0.6.6 (OK)
textdistance >=4.2.0              :  4.2.2 (OK)
three_merge >=0.1.1               :  0.1.1 (OK)
watchdog >=0.10.3                 :  2.1.8 (OK)
xdg >=0.26                        :  0.27 (OK)
yarl >=1.9.4                      :  1.9.4 (OK)
zmq >=24.0.0                      :  25.0.2 (OK)

# Optional:
cython >=0.21                     :  None (NOK)
matplotlib >=3.0.0                :  3.5.2 (OK)
numpy >=1.7                       :  1.22.4 (OK)
pandas >=1.1.1                    :  1.4.2 (OK)
scipy >=0.17.0                    :  1.8.1 (OK)
sympy >=0.7.3                     :  None (NOK)