Metadata-Version: 1.0
Name: BitVector
Version: 1.3
Summary: A pure-Python memory-efficient packed representation for bit arrays
Home-page: http://RVL4.ecn.purdue.edu/~kak/dist/BitVector-1.3.html
Author: Avinash Kak
Author-email: kak@purdue.edu
License: Python Software Foundation
Download-URL: http://RVL4.ecn.purdue.edu/~kak/dist/BitVector-1.3.tar.gz?download
Description: This class presents a pure-Python memory efficient packed representation for bit arrays.
        
        Changes introduced in version 1.3: (1) One more constructor mode included: When initializing a new bit vector with an integer value, you can now also specify a size for the bit vector.  The constructor zero-pads the bit vector from the left with zeros. (2) The BitVector class now supports 'if x in y' syntax to test if the bit pattern 'x' is contained in the bit pattern 'y'. (3) Improved syntax to conform to well-established Python idioms. (4) What used to be a comment before the beginning of each method definition is now a docstring.
        
        Changes introduced in version 1.2: (1) one more constructor mode: a bit vector can now be constructed directly from a bitstring; (2) rich comparison operators overloaded; (3) minimal length bit vectors constructed from int values; (4) methods provided for extending a bit vector from the left and from the right; (5) a unittest based testing framework incorporated in the package; (6) additional debugging in code and in package setup.
        
        Changes introduced in version 1.1.1: (1) peek feature incorporated in block reads from disk files; (2) it is now possible to construct zero-sized bit vectors.
        
        The class supports the following operators/methods:
        
        __getitem__
        
        __setitem__
        
        __len__
        
        __getslice__
        
        __str__
        
        __iter__
        
        __contains__
        
        __int__
        
        __add__
        
        __eq__, __ne__, __lt__, __le__, __gt__, __ge__
        
        
        '|'  for bitwise or
        
        '&'  for bitwise and
        
        '^'  for bitwise xor
        
        '~'  for bitwise inversion
        
        '<<' for circular shift to the left
        
        '>>' for circular shift to the right
        
        '+'  for concatenation
        
        intValue(), __int__  for returning the integer value
        
        divide_into_two
        
        permute
        
        unpermute
        
        pad_from_left
        
        pad_from_right
        
        read_bits_from_file
        
        write_to_file
        
        read_bits_from_fileobject
        
        write_bits_to_fileobject
        
        
Keywords: bit array,bit vector,bit string,logical operations on bit fields
Platform: All platforms
Classifier: Topic :: Utilities
Classifier: Programming Language :: Python
