Fixed error. Simplified code with shortcut.
Fixed typo.
Fixed typo.
Fixed problem with missing fill_align format specification field.
Simpler handling of an empty fill_align format specification.
Fixed typo.
Fixed obsolete code.
Fixed line longer than 80 characters with pydoc.
Removed unnecessary leading underscore for "private" global functions, as per PEP 8 (since __all__ is defined).
Removed unnecessary "private" functions: only test_* functions run tests anyway.
Removed most leading "_" in modules, either when there is a defined __all__ or when the module is a test module (and the function did not start with _test).
Comment added. Code currently broken (prec handling).
Fixed bug with undefined numerical precision.