Also change private dict used as a set to a set.

Idle code already uses x.delegate instead of x.getdelegate().
The printed report must have been for testing.

The slightly odd behavior (the validity of passing a sizehint depends on the
type of self._file) was kept to avoid breaking code that depends on it.
Test_tempfile.test_xreadlines passes (along with everything else).

Patch by Vajrasky Kok, with slight modification to the tests by me.

replacing warnings.formatwarnings and to reverse replacement of
warnings.showwarnings when import is complete and when main function exits.
Add test_warning.py. Vinay Sajip provided capture_warnings function.

replacing redundant signature in input() docstring with one-line summary.
Original patch by Terrel Shumway.

string in longer than 2 gigabytes. The ssl module does not support partial
write.

from the Python 3 documentation.

Original patch by Berker Peksag.

OverflowError when an argument of %c format is out of range.

for symlinks.

for strings longer than 2 gigabytes.

and complex.__format__().

'Find in files' by replacing 'open with implicit close' by 'with open' in
GrepDialog method grep_it. Streamline code with enumerate(), direct file
iteration, and output tweak. Add test for this method, including output format.

Problem noted & original patch by Serhiy Storchaka; I tweaked the patch a bit.

Back port of 0113247f894b from 3.3.

The exceptions are the import related questions at the end, which
need to be rewritten anyway, and a math example that doesn't
exist in the 3.3+ docs that I didn't bother trying to fix.

when \r\n appears at end of 65535 bytes without other newlines.

Reported by Atsuo Ishimoto.