Runserver socket error in unicode fails to print error message

[Andriy Sokolovskiy]

In django.core.management.commands.runserver.Command#inner_run, when catching socket error, can be a unicode problem.
For example, after error_text = str(e) there can be an unicode text, so this line will raise UnicodeDecodeError and will not exit runserver command:

self.stderr.write("Error: %s" % error_text)

Simple solution:

self.stderr.write("Error: %s" % error_text.decode('utf-8'))

Example of a problem: ​http://stackoverflow.com/questions/27248506/starting-with-django-server/27251575

[Tim Graham <timograham@…>]

In bba545345f46f09245799f7ae0a22177a84eba71:

Fixed #23946 -- Fixed runserver crash when socket error contains Unicode chars.

[Tim Graham <timograham@…>]

In 2d0d6cadd41a132950e28fd08a99f72c085e0a42:

[1.7.x] Fixed #23946 -- Fixed runserver crash when socket error contains Unicode chars.

Backport of bba545345f46f09245799f7ae0a22177a84eba71 from master

[Tim Graham <timograham@…>]

In 5c773447c3239a297b22929f0df15d2971d72e77:

Tweaked fix for refs #23946; thanks Claude.

[Tim Graham <timograham@…>]

In 0a70d63b0b7cced774270586768ccb5ccebbb7ca:

[1.7.x] Tweaked fix for refs #23946; thanks Claude.

Backport of 5c773447c3239a297b22929f0df15d2971d72e77 from master