Reported by nvdakor on 2014-09-24 23:44
Hi,
Spin off from #4475: a number of users have confirmed the following issue:

Problem: With recent next snapshots with WXPython 3.0.1 installed, add-ons manager cannot be opened after restarting NVDA after installing or removing add-ons. This is more noticeable if you remove the last add-on listed in the add-ons manager.
STR:

1. Start with a "clean" copy of NVDA next snapshot - that is, no add-ons installed.
2. Go to Add-ons Manager and install an add-on.
3. Exit add-ons manager, then answer "yes" to the dialog that appears.
4. after NvDA starts, try opening add-ons manager.
   Expected: Add-ons Manager opens.
   Actual: add-ons manager is not shown.
   Additional details:

• Tested using source code copy of NVDA next branch with no add-ons installed.
• Debugging using print statement shows GUI did run the routine to show add-ons manager window.
• Tracing the print statement points to core.restart function, which the add-ons management GUI calls when add-ons are installed or removed. The restart function restarts NVDA, and add-ons are added or deleted during initialization phase during startup.

Workaround: If add-ons manager does not appear after restarting NVDA after installing or removing add-ons, try one of the following:

1. Restart NVDA.
2. After NVDA restarts after installing or removing add-ons, open Log Viewer (NVDA+F1) first BEFORE attempting to open add-ons manager.

The second workaround suggests something is being created while Log Viewer is first opened for which NVDA is not aware of when trying to open add-ons manager. A possible fix might be to examine what is being done when log Viewer is created so add-ons manager GUI can attempt the same thing.
Thanks.

Blocked by #4475
Blocking #3763