the complex_pow part), r56649, r56652, r56715, r57296, r57302, r57359, r57361,
r57372, r57738, r57739, r58017, r58039, r58040, and r59390, and new
documentation. The only significant difference is that round(x) returns a float
to preserve backward-compatibility. See http://bugs.python.org/issue1689.

Replaced import of the 'new' module with 'types' module and added a deprecation warning to the 'new' module.

Fix those parts in the testsuite that assumed that sys.maxint would cause overflow on x64.  Now the testsuite is well behaved on that platform.

Fixes #878275.

comprehensive test suite for the module.