[issue9222] IDLE: Fix open/saveas 'Files of type' choices

[Terry J. Reedy]

New submission from Terry J. Reedy <tjreedy at udel.edu>:

In the open and save-as dialog boxes, the choices for the 'Files of type' field are governed by the filetypes list in Lib\idlelib\IOBinding.py, about line 225 (found by a friend).

    filetypes = [
        ("Python and text files", "*.py *.pyw *.txt", "TEXT"),
        ("All text files", "*", "TEXT"),
        ("All files", "*"),
        ]

I see multiple problems with this:

1. The first line, which for me is the default, mixes Python and text files, while one nearly only wants to only search through Python files. I propose to remove 'and text' and '*.txt'.

2. The second line, which would currently be redundant with the first if it did what it said (but would not be with the first fix), has a bug in the file spec, '*' instead of '*.txt', that makes it redundant with the third line. I propose to fix that bug.

The following is copied from my patched and tested version of the file:

    filetypes = [
        ("Python files", "*.py *.pyw", "TEXT"),
        ("Text files", "*.txt", "TEXT"),
        ("All files", "*"),
        ]

So this is a trivial 2 line patch.

----------
components: IDLE
keywords: easy
messages: 109951
nosy: tjreedy
priority: normal
severity: normal
status: open
title: IDLE: Fix open/saveas 'Files of type' choices
type: behavior
versions: Python 2.7, Python 3.1, Python 3.2

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue9222>
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