[issue17357] Add missing verbosity message to importlib

[Brett Cannon]

New submission from Brett Cannon:

Looks like I missed some verbosity messages in importlib. The most obvious one is the "trying" messages under verbosity 2 (-vv or PYTHONVERBOSE=2). Should probably go through import.c again and make sure no other messages are missing (http://hg.python.org/cpython/file/637d7c953b10/Python/import.c).

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components: Interpreter Core
keywords: easy
messages: 183539
nosy: brett.cannon, twouters
priority: normal
severity: normal
stage: needs patch
status: open
title: Add missing verbosity message to importlib
type: behavior
versions: Python 3.3, Python 3.4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17357>
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