Package grizzled :: Module misc

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Module misc

The grizzled.misc module contains miscellanous functions and classes that don't seem to fit well in other modules.

Classes

ReadOnlyObjectError
Thrown by ReadOnly to indicate an attempt to set a field.

ReadOnly
A ReadOnly object wraps another object and prevents all the contained object's fields from being written.

Functions

int

bitcount(num)
Count the number of bits in a numeric (integer or long) value.

source code

Variables

log = logging.getLogger('grizzled.misc')

__package__ = 'grizzled'

Function Details

bitcount(num)

Count the number of bits in a numeric (integer or long) value. This method is adapted from the Hamming Weight algorithm, described (among other places) at http://en.wikipedia.org/wiki/Hamming_weight

Works for up to 64 bits.

Parameters:

num (int) - The numeric value

Returns: int

The number of 1 bits in the binary representation of num