##// END OF EJS Templates
Raise a named exception when pandoc is missing...
Raise a named exception when pandoc is missing In the normal case this will case the interpriter to exit just like sys.exit(...), but it will make it possible for callers to explicitly catch the exception too. Also, removed parens from the pandoc URL so it's easier to triple-click-copy-and-paste.

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data.py
35 lines | 1.1 KiB | text/x-python | PythonLexer
# encoding: utf-8
"""Utilities for working with data structures like lists, dicts and tuples.
"""
#-----------------------------------------------------------------------------
# Copyright (C) 2008-2011 The IPython Development Team
#
# Distributed under the terms of the BSD License. The full license is in
# the file COPYING, distributed as part of this software.
#-----------------------------------------------------------------------------
def uniq_stable(elems):
"""uniq_stable(elems) -> list
Return from an iterable, a list of all the unique elements in the input,
but maintaining the order in which they first appear.
Note: All elements in the input must be hashable for this routine
to work, as it internally uses a set for efficiency reasons.
"""
seen = set()
return [x for x in elems if x not in seen and not seen.add(x)]
def flatten(seq):
"""Flatten a list of lists (NOT recursive, only works for 2d lists)."""
return [x for subseq in seq for x in subseq]
def chop(seq, size):
"""Chop a sequence into chunks of the given size."""
return [seq[i:i+size] for i in xrange(0,len(seq),size)]