#---------- cachedlinelist.py----------#
import linecache, types
class CachedLineList:
    # Note: in Python 2.2+, it is probably worth including:
    # __slots__ = ('_fname')
    # ...and inheriting from 'object'
    def __init__(self, fname):
        self._fname = fname
    def __getitem__(self, x):
        if type(x) is types.SliceType:
            return [linecache.getline(self._fname, n+1)
                    for n in range(x.start, x.stop, x.step)]
        else:
            return linecache.getline(self._fname, x+1)
    def __getslice__(self, beg, end):
        # pass to __getitem__ which does extended slices also
        return self[beg:end:1]