File "GlyphsApp/__init__.py", line 2213, in __delitem__

Glyphs
1

Version 2.5b (1069)

Simple script

import GlyphsApp
thisFont = Glyphs.font
for i in range(len(thisFont.tabs)):
    del thisFont.tabs[0]

Error:

Traceback (most recent call last):
  File "<string>", line 4, in <module>
  File "GlyphsApp/__init__.py", line 2213, in __delitem__
NameError: global name 'idx' is not defined
2

Fixed.