Message 285508 - Python tracker

Message285508

Author	gms
Recipients	Arve.Knudsen, José.Luis.Lafuente, berker.peksag, gms, kushal.das, michael.foord, mucka, pkoning
Date	2017-01-15.09:32:04
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1484472725.38.0.550584285291.issue21258@psf.upfronthosting.co.za>
In-reply-to

Content
For working around this issue on Python 3.5 it is sufficient to overwrite just the `return_value.__iter__` method of the object returned by `mock_open()` with an iterator that calls the mocked `readline()` method until it returns the empty string. cf. e.g. https://github.com/gsauthof/utility/blob/6489c7215dac341be4e40e5348e64d69461766dd/user-installed.py#L176-L179 This also works in combination with `csv.reader()`, i.e. when calling it with the mocked file object.

Content

For working around this issue on Python 3.5 it is sufficient to overwrite just the `return_value.__iter__` method of the object returned by `mock_open()` with an iterator that calls the mocked `readline()` method until it returns the empty string.

cf. e.g. https://github.com/gsauthof/utility/blob/6489c7215dac341be4e40e5348e64d69461766dd/user-installed.py#L176-L179

This also works in combination with `csv.reader()`, i.e. when calling it with the mocked file object.

History
Date	User	Action	Args
2017-01-15 09:32:05	gms	set	recipients: + gms, michael.foord, Arve.Knudsen, berker.peksag, kushal.das, pkoning, José.Luis.Lafuente, mucka
2017-01-15 09:32:05	gms	set	messageid: <1484472725.38.0.550584285291.issue21258@psf.upfronthosting.co.za>
2017-01-15 09:32:05	gms	link	issue21258 messages
2017-01-15 09:32:04	gms	create