Thanks Tim Graham for the review.

Thanks Tim Graham for the review.

Thanks to Tim Graham for the review.

Thanks Tim Graham for the review.

Thanks KS Chan for the report and Tim Graham for the review.

Forwardport of ae1d663b
from stable/1.8.x plus more.

Using `BaseCommand.options_list` makes Django use the legacy optparse
parser, which does not set the verbosity attribute correctly. Now the
verbosity argument is always cast to int. Regression in 85686386 (#19973).

Initial report and patch from blueyed.

This is a performance optimization and also fixes test errors with the
upcoming merge of contrib tests into tests/. The tests failed on MySQL
because the models with GeometryField were being checked but the
non-GIS MySQL backend didn't know how to handle them.

This fixes a regression caused by f7c287fc. Thanks Markus Holtermann
for identifying the regression.

Thanks Tim Graham and Markus Holtermann for the reviews.

Thanks jdetaeye for the report, bhuztez and jdetaeye for the
initial patches, Tim Graham and Berker Peksag for the reviews.

StringIO import was adapted for compatibility with Python 2.

Thanks Loic Bistuer for the report/review and Tim Graham for the
review.

This is a reliqua from the early days of the modeltests/regressiontests era.

Oracle doesn't have a `BEGIN` statement so the test would
fail.

Refs #23303

Thanks giulettamasina for the report and Tim Graham for the review.

Thanks Tim Graham for the review.

Thanks Baptiste Mispelon for the review.

This option is not actually very useful in the general case
because it doesn't override sys.stdin.

It's still marginally useful for testing some features of
the createsuperuser command so it was moved there.
This commit also makes the detection of a TTY in createsuperuser
a bit more robust, after a suggestion of appolo13.

This makes testing certain features easier.

Thanks to AeroNotix for the original patch.

This is the result of Christopher Medrela's 2013 Summer of Code project.

Thanks also to Preston Holmes, Tim Graham, Anssi Kääriäinen, Florian
Apolloner, and Alex Gaynor for review notes along the way.

Also: Fixes #8579, fixes #3055, fixes #19844.