[issue9770] curses.ascii.isblank() function is broken. It confuses backspace (BS 0x08) with tab (0x09)

[Mark Lawrence]

Changes by Mark Lawrence <breamoreboy at gmail.com>:


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nosy:  -BreamoreBoy

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue9770>
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