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An updated version of the bitmap library from https://github.com/wanji/bitmap

Project description

BitMap for python

An updated version of the bitmap library from https://github.com/wanji/bitmap since the original project is no longer maintained.

This package provides a BitMap class which is an array of bits stored in compact format.

Installation

bitmap can be installed from pip:

pip3 install bitmap2

Functions

  • BitMap(maxnum): construct a BitMap object with maxnum bits
  • set(pos): set the bit at position pos to 1
  • reset(pos): reset the bit at position pos to 0
  • flip(pos): flip the bit at position pos
  • count(): return the number of 1s
  • size(): return the size of the BitMap
  • test(pos): check if bit at position pos has been set to 1
  • any(): check if any bit in the BitMap has been set to 1
  • none(): check if none of the bits in the BitMap has been set to 1
  • all(): check if all bits in the BitMap has been set to 1
  • nonzero(): return list of indexes of all non-zero bits
  • nonzeros(): return generator of indexes of all non-zero bits
  • zero(): return list of indexes of all zero bits
  • zeros(): return generator of indexes of all zero bits
  • tostring(): convert a BitMap object to 0 and 1 string
  • tofile(path): save a BitMap object to a file on path
  • fromstring(bitstring): create a BitMap object from 0 and 1 string
  • fromhexstring(hexstring): construct a BitMap object from hex string
  • fromfile(path, maxnum): construct a Bitmap object from a file at path of size maxnum bits

Examples

from bitmap import BitMap
bm = BitMap(32)
print bm.tostring()
bm.set(1)
print bm.tostring()

bm = BitMap.fromstring("00011101")
print bm.tostring()
bm.flip(1)
print bm.tostring()

Project details


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bitmap2-0.2.2.tar.gz (8.4 kB view hashes)

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