Drop 2.4 compatibility boilerplate code

[Jonas H.]

Here's a patch that removes some 2.4 compatibility boiler plate code. Mostly easy changes like removing/replacing imports.

Note that we can't drop django.utils.functional.curry entirely because functools.partial returns a non-function which can't be used as a proper method.

[Jonas H.]

Forgot to mention that this passes all tests for me (using the SQLite backend configuration providedin test_sqlite.py).

[Russell Keith-Magee]

Thanks for that.

One thing I've noticed from a quick inspection of the patch; you've removed the Python 2.4 compatibility stuff from django.utils.unittest. That module is a direct copy of the public unittest project, so we're not going to introduce any variations, even if they are surplus to our internal requirements.

There are also some tests for context managers that were added in 1.3 (for transaction context managers and the SQL statement counter in the test framework). These were conditionally included tests for Python 2.4; they now can be integrated into the main suite.

[Adrian Holovaty]

In [15926]:

Removed a bunch of Python 2.4 workarounds now that we don't support it. Refs #15702 -- thanks to jonash for the patch. Splitting this over muliple commits to make it more manageable.

[Adrian Holovaty]

In [15927]:

Removed a bunch more Python 2.4 workarounds now that we don't support that version. Refs #15702 -- thanks to jonash for the patch.

[Adrian Holovaty]

This is fixed as of [15926] and [15927]. Note that I found four more uses of django.utils.hashcompat that weren't included in the patch. I also didn't touch the stuff in django.utils.unittest per Russell's comment. Thanks, jonash!

[Matthias Kestenholz]

There is a grave bug since r15927 in Django: The decorator in django/db/transaction.py is missing a return statement, which causes testsuites and everything decorated with any transaction decorator to fail, f.e. with a 'NoneType' object has no attribute 'set_cookie' error.

The fix is so simple that I won't attach a patch for it:

diff --git a/django/db/transaction.py b/django/db/transaction.py
index cf7350c..6cbe39f 100644
--- a/django/db/transaction.py
+++ b/django/db/transaction.py
@@ -207,7 +207,7 @@ class Transaction(object):
         @wraps(func)
         def inner(*args, **kwargs):
             with self:
-                func(*args, **kwargs)
+                return func(*args, **kwargs)
         return inner
 
 def _transaction_func(entering, exiting, using):

[Matthias Kestenholz]

Not adding a test either -- the current test suite is sufficient for testing this particular piece of code. And it fails with current SVN trunk.

[Matthias Kestenholz]

Sorry for the comment spam -- patch is already attached; the patch by jonash contains the return statement, the committed version does not.

[Russell Keith-Magee]

In [15937]:

Fixed #15702 -- Corrected problem in test suite introduced by Python 2.4 changes from r15927. Thanks to mk for the report and patch.