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Diffstat (limited to 'django/utils/numberformat.py')
| -rw-r--r-- | django/utils/numberformat.py | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/django/utils/numberformat.py b/django/utils/numberformat.py index 52d75d6edd..a2b43ca74f 100644 --- a/django/utils/numberformat.py +++ b/django/utils/numberformat.py @@ -27,7 +27,20 @@ def format(number, decimal_sep, decimal_pos=None, grouping=0, thousand_sep='', # sign sign = '' if isinstance(number, Decimal): - str_number = '{:f}'.format(number) + # Format values with more than 200 digits (an arbitrary cutoff) using + # scientific notation to avoid high memory usage in {:f}'.format(). + _, digits, exponent = number.as_tuple() + if abs(exponent) + len(digits) > 200: + number = '{:e}'.format(number) + coefficient, exponent = number.split('e') + # Format the coefficient. + coefficient = format( + coefficient, decimal_sep, decimal_pos, grouping, + thousand_sep, force_grouping, use_l10n, + ) + return '{}e{}'.format(coefficient, exponent) + else: + str_number = '{:f}'.format(number) else: str_number = str(number) if str_number[0] == '-': |