parameters: (a, b, linejunk=None, charjunk=IS_CHARACTER_JUNK)
return_statement: return Differ(linejunk, charjunk).compare(a, b)
docstring: r"""
      Compare `a` and `b` (lists of strings); return a `Differ`-style delta.
  
      Optional keyword parameters `linejunk` and `charjunk` are for filter
      functions (or None):
  
      - linejunk: A function that should accept a single string argument, and
        return true iff the string is junk.  The default is None, and is
        recommended; as of Python 2.3, an adaptive notion of "noise" lines is
        used that does a good job on its own.
  
      - charjunk: A function that should accept a string of length 1. The
        default is module-level function IS_CHARACTER_JUNK, which filters out
        whitespace characters (a blank or tab; note: bad idea to include newline
        in this!).
  
      Tools/scripts/ndiff.py is a command-line front-end to this function.
  
      Example:
  
      >>> diff = ndiff('one\ntwo\nthree\n'.splitlines(1),
      ...              'ore\ntree\nemu\n'.splitlines(1))
      >>> print ''.join(diff),
      - one
      ?  ^
      + ore
      ?  ^
      - two
      - three
      ?  -
      + tree
      + emu
docstring_summary: r"""
      Compare `a` and `b` (lists of strings); return a `Differ`-style delta.
docstring_tokens: r Compare a and b ( lists of strings ) ; return a Differ - style delta .
function: def ndiff(a, b, linejunk=None, charjunk=IS_CHARACTER_JUNK):
      r"""
      Compare `a` and `b` (lists of strings); return a `Differ`-style delta.
  
      Optional keyword parameters `linejunk` and `charjunk` are for filter
      functions (or None):
  
      - linejunk: A function that should accept a single string argument, and
        return true iff the string is junk.  The default is None, and is
        recommended; as of Python 2.3, an adaptive notion of "noise" lines is
        used that does a good job on its own.
  
      - charjunk: A function that should accept a string of length 1. The
        default is module-level function IS_CHARACTER_JUNK, which filters out
        whitespace characters (a blank or tab; note: bad idea to include newline
        in this!).
  
      Tools/scripts/ndiff.py is a command-line front-end to this function.
  
      Example:
  
      >>> diff = ndiff('one\ntwo\nthree\n'.splitlines(1),
      ...              'ore\ntree\nemu\n'.splitlines(1))
      >>> print ''.join(diff),
      - one
      ?  ^
      + ore
      ?  ^
      - two
      - three
      ?  -
      + tree
      + emu
      """
      return Differ(linejunk, charjunk).compare(a, b)
function_tokens: def ndiff ( a , b , linejunk = None , charjunk = IS_CHARACTER_JUNK ) : return Differ ( linejunk , charjunk ) . compare ( a , b )