[issue17238] Enhance import statement completion

[Ramchandra Apte]

New submission from Ramchandra Apte:

[patch under development]
I propose to add completions for 
import <tab>
from <tab>
from x import <tab>

Also, if one types imp.<tab> , IDLE should import the module and list dir(module).
(There will be an option to disable/enable the last two completion cases as some users object to it importing modules for completion)

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components: IDLE
messages: 182392
nosy: Ramchandra Apte, terry.reedy
priority: normal
severity: normal
status: open
title: Enhance import statement completion
type: enhancement
versions: Python 3.3, Python 3.4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17238>
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