Show vertical line at maximum allowed line length does not respect max allowed line length at startup

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

The vertical line indicating the maximum allowed line length does not respect the value in the preferences on startup.

What steps reproduce the problem?

1. Change the vertical line location in the Editor by changing the max allowed line length in the Preferences.
2. Notice that the vertical line changes position, as expected.
3. Quit and reopen Spyder
4. Notice that the vertical line in the Editor is again at 79; Preferences still indicates the previously entered maximum line length.

Versions

• Spyder version: 4.3.0.dev0 b4c0facea (bootstrap)
• Python version: 3.7.9 64-bit
• Qt version: 5.9.6
• PyQt5 version: 5.9.2
• Operating System: Darwin 19.6.0

[Cuahchic]

I can confirm this issue still persists in 5.0.3. If I go into settings and change it the line will move, but at startup it’s incorrect.

[ccordoba12]

I just noticed that when I change the max allowed line length in the settings, the vertical line only changes in the active panel. In other open panels it stays at 79 characters.

Hey @joooeey, thanks for mentioning this! I’ll fix it as part of this issue too.