[issue2353] Use of file.xreadlines() should raise a Py3K warning

[Brett Cannon]

New submission from Brett Cannon <brett at python.org>:

Using file.xreadlines() should raise a Py3K warning.

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components: Interpreter Core
keywords: 26backport
messages: 63724
nosy: brett.cannon
priority: immediate
severity: normal
status: open
title: Use of file.xreadlines() should raise a Py3K warning
versions: Python 2.6

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<http://bugs.python.org/issue2353>
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