diff options
Diffstat (limited to 'Lib/_pydecimal.py')
| -rw-r--r-- | Lib/_pydecimal.py | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/Lib/_pydecimal.py b/Lib/_pydecimal.py index 46fa9ffcb1e..9b8e42a2342 100644 --- a/Lib/_pydecimal.py +++ b/Lib/_pydecimal.py @@ -6120,9 +6120,13 @@ _parse_format_specifier_regex = re.compile(r"""\A (?P<no_neg_0>z)? (?P<alt>\#)? (?P<zeropad>0)? -(?P<minimumwidth>(?!0)\d+)? +(?P<minimumwidth>\d+)? (?P<thousands_sep>[,_])? -(?:\.(?P<precision>0|(?!0)\d+))? +(?:\. + (?=[\d,_]) # lookahead for digit or separator + (?P<precision>\d+)? + (?P<frac_separators>[,_])? +)? (?P<type>[eEfFgGn%])? \z """, re.VERBOSE|re.DOTALL) @@ -6215,6 +6219,9 @@ def _parse_format_specifier(format_spec, _localeconv=None): format_dict['grouping'] = [3, 0] format_dict['decimal_point'] = '.' + if format_dict['frac_separators'] is None: + format_dict['frac_separators'] = '' + return format_dict def _format_align(sign, body, spec): @@ -6334,6 +6341,11 @@ def _format_number(is_negative, intpart, fracpart, exp, spec): sign = _format_sign(is_negative, spec) + frac_sep = spec['frac_separators'] + if fracpart and frac_sep: + fracpart = frac_sep.join(fracpart[pos:pos + 3] + for pos in range(0, len(fracpart), 3)) + if fracpart or spec['alt']: fracpart = spec['decimal_point'] + fracpart |