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| -rw-r--r-- | Doc/library/stdtypes.rst | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst index 5690611..e1d7149 100644 --- a/Doc/library/stdtypes.rst +++ b/Doc/library/stdtypes.rst @@ -1639,18 +1639,20 @@ expression support in the :mod:`re` module). Return true if all characters in the string are decimal characters and there is at least one character, false - otherwise. Decimal characters are those from general category "Nd". This category - includes digit characters, and all characters - that can be used to form decimal-radix numbers, e.g. U+0660, - ARABIC-INDIC DIGIT ZERO. + otherwise. Decimal characters are those that can be used to form + numbers in base 10, e.g. U+0660, ARABIC-INDIC DIGIT + ZERO. Formally a decimal character is a character in the Unicode + General Category "Nd". .. method:: str.isdigit() Return true if all characters in the string are digits and there is at least one character, false otherwise. Digits include decimal characters and digits that need - special handling, such as the compatibility superscript digits. Formally, a digit - is a character that has the property value Numeric_Type=Digit or Numeric_Type=Decimal. + special handling, such as the compatibility superscript digits. + This covers digits which cannot be used to form numbers in base 10, + like the Kharosthi numbers. Formally, a digit is a character that has the + property value Numeric_Type=Digit or Numeric_Type=Decimal. .. method:: str.isidentifier() |