Also minor cleanups to the code: fix tabbing, remove
trailing whitespace, and reformat to fit into 80
columns.

version of msum by a version using a different algorithm, and
use the new float.fromhex method to specify test results exactly.

can be a bit loaded), and be sure to yield the CPU
when waiting.

near the extremes of the floating-point range.  (The behaviour of math.sum
should be regarded as undefined in these cases.)

(v. 1.68) and tests (v. 2.58) from IBM.

Adds test cases which use Allow: as well.

this should fix the failures on the solaris buildbot.

(35% faster according to pybench)

convert test_locale to unittest, and add a mechanism to override localconv() results for further testing (#1864, #1222)