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Diffstat (limited to 'Doc/library/itertools.rst')
| -rw-r--r-- | Doc/library/itertools.rst | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/Doc/library/itertools.rst b/Doc/library/itertools.rst index 1f67739..42f648a 100644 --- a/Doc/library/itertools.rst +++ b/Doc/library/itertools.rst @@ -8,6 +8,10 @@ .. sectionauthor:: Raymond Hettinger <python@rcn.com> +.. testsetup:: + + from itertools import * + .. versionadded:: 2.3 This module implements a number of :term:`iterator` building blocks inspired by @@ -549,7 +553,9 @@ Examples -------- The following examples show common uses for each tool and demonstrate ways they -can be combined. :: +can be combined. + +.. doctest:: # Show a dictionary sorted and grouped by value >>> from operator import itemgetter @@ -567,7 +573,7 @@ can be combined. :: # same group. >>> data = [ 1, 4,5,6, 10, 15,16,17,18, 22, 25,26,27,28] >>> for k, g in groupby(enumerate(data), lambda (i,x):i-x): - ... print map(operator.itemgetter(1), g) + ... print map(itemgetter(1), g) ... [1] [4, 5, 6] @@ -592,7 +598,9 @@ rather than bringing the whole iterable into memory all at once. Code volume is kept small by linking the tools together in a functional style which helps eliminate temporary variables. High speed is retained by preferring "vectorized" building blocks over the use of for-loops and :term:`generator`\s -which incur interpreter overhead. :: +which incur interpreter overhead. + +.. testcode:: def take(n, seq): return list(islice(seq, n)) |