Autocomplete should not appear within comments

[DonJayamanne]

import sys
# sys.

Autocompletion will kick in after the period

[DonJayamanne]

@MikhailArkhipov
If a text range starts from 7 to 9, then why isn't 9 considered to be within this text range.

See below test:
https://github.com/Microsoft/vscode-python/blob/master/src/test/language/textRange.test.ts#L43

[MikhailArkhipov]

Specific to very end of a comment

[DonJayamanne]

Agreed, but this issue would occur majority of the time when typing in comments.