diff options
| -rw-r--r-- | Doc/lib/libcollections.tex | 16 | ||||
| -rw-r--r-- | Doc/lib/libitertools.tex | 2 |
2 files changed, 7 insertions, 11 deletions
diff --git a/Doc/lib/libcollections.tex b/Doc/lib/libcollections.tex index c7d5c50..84cc507 100644 --- a/Doc/lib/libcollections.tex +++ b/Doc/lib/libcollections.tex @@ -135,12 +135,10 @@ deque(['c', 'b', 'a']) This section shows various approaches to working with deques. The \method{rotate()} method provides a way to implement \class{deque} -slicing and deletion: - -This pure python implementation of \code{del d[n]} shows how to use the -\method{rotate()} method as a building block for implementing a variety -of class{deque} operations: - +slicing and deletion. For example, a pure python implementation of +\code{del d[n]} relies on the \method{rotate()} method to position +elements to be popped: + \begin{verbatim} def delete_nth(d, n): d.rotate(-n) @@ -188,9 +186,9 @@ h Multi-pass data reduction algorithms can be succinctly expressed and -efficiently coded by extracting elements using multiple calls to -\method{popleft()}, applying the reduction function, and using -\method{append()} for adding the result back to the queue. +efficiently coded by extracting elements with multiple calls to +\method{popleft()}, applying the reduction function, and calling +\method{append()} to add the result back to the queue. For example, building a balanced binary tree of nested lists entails reducing two adjacent nodes into one by grouping them in a list: diff --git a/Doc/lib/libitertools.tex b/Doc/lib/libitertools.tex index 1909592..b73ffce 100644 --- a/Doc/lib/libitertools.tex +++ b/Doc/lib/libitertools.tex @@ -476,7 +476,6 @@ def padnone(seq): """Returns the sequence elements and then returns None indefinitely. Useful for emulating the behavior of the built-in map() function. - """ return chain(seq, repeat(None)) @@ -494,7 +493,6 @@ def repeatfunc(func, times=None, *args): """Repeat calls to func with specified arguments. Example: repeatfunc(random.random) - """ if times is None: return starmap(func, repeat(args)) |