Message 258614 - Python tracker

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Author	serhiy.storchaka
Recipients	Zero, benjamin.peterson, docs@python, eryksun, fornax, pitrou, serhiy.storchaka, steve.dower, stutzbach, vstinner
Date	2016-01-19.18:04:26
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<[email protected]>
In-reply-to

Content
This is not always possible. Consider following example: >>> open('temp.txt', 'wb').write(b'+BDAEMQQyBDMENA-') 16 >>> f = open('temp.txt', 'r+', encoding='utf-7') >>> f.read(2) 'аб' What should be the result of truncating? I think it would be better to not implement truncate() for text files at all.

This is not always possible. Consider following example:

>>> open('temp.txt', 'wb').write(b'+BDAEMQQyBDMENA-')
16
>>> f = open('temp.txt', 'r+', encoding='utf-7')
>>> f.read(2)
'аб'

What should be the result of truncating?

I think it would be better to not implement truncate() for text files at all.

History
Date	User	Action	Args
2016-01-19 18:04:26	serhiy.storchaka	set	recipients: + serhiy.storchaka, pitrou, vstinner, benjamin.peterson, stutzbach, Zero, docs@python, eryksun, steve.dower, fornax
2016-01-19 18:04:26	serhiy.storchaka	set	messageid: <[email protected]>
2016-01-19 18:04:26	serhiy.storchaka	link	issue26158 messages
2016-01-19 18:04:26	serhiy.storchaka	create