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| -rw-r--r-- | Doc/library/stdtypes.rst | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst index 011bb6a5a4..783b750e0d 100644 --- a/Doc/library/stdtypes.rst +++ b/Doc/library/stdtypes.rst @@ -466,10 +466,20 @@ The float type has some additional methods. .. method:: float.as_integer_ratio() - Return a pair of integers whose ratio is exactly equal to the - original float and with a positive denominator. Raises - :exc:`OverflowError` on infinities and a :exc:`ValueError` on - NaNs. + Return a pair of integers whose ratio is exactly equal to the + original float and with a positive denominator. Raises + :exc:`OverflowError` on infinities and a :exc:`ValueError` on + NaNs. + +.. method:: float.is_integer() + + Return ``True`` if the float instance is finite with integral + value, and ``False`` otherwise:: + + >>> (-2.0).is_integer() + True + >>> (3.2).is_integer() + False Two methods support conversion to and from hexadecimal strings. Since Python's floats are stored |