diff options
Diffstat (limited to 'Doc/tutorial/classes.rst')
| -rw-r--r-- | Doc/tutorial/classes.rst | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/Doc/tutorial/classes.rst b/Doc/tutorial/classes.rst index 82735df..a328ab2 100644 --- a/Doc/tutorial/classes.rst +++ b/Doc/tutorial/classes.rst @@ -717,7 +717,7 @@ object that defines the method :meth:`__next__` which accesses elements in the container one at a time. When there are no more elements, :meth:`__next__` raises a :exc:`StopIteration` exception which tells the :keyword:`for` loop to terminate. You can call the :meth:`__next__` method using the :func:`next` -builtin; this example shows how it all works:: +built-in function; this example shows how it all works:: >>> s = 'abc' >>> it = iter(s) @@ -730,7 +730,6 @@ builtin; this example shows how it all works:: >>> next(it) 'c' >>> next(it) - Traceback (most recent call last): File "<stdin>", line 1, in ? next(it) @@ -742,7 +741,7 @@ returns an object with a :meth:`__next__` method. If the class defines :meth:`__next__`, then :meth:`__iter__` can just return ``self``:: class Reverse: - "Iterator for looping over a sequence backwards" + """Iterator for looping over a sequence backwards.""" def __init__(self, data): self.data = data self.index = len(data) @@ -754,6 +753,8 @@ returns an object with a :meth:`__next__` method. If the class defines self.index = self.index - 1 return self.data[self.index] +:: + >>> rev = Reverse('spam') >>> iter(rev) <__main__.Reverse object at 0x00A1DB50> @@ -782,6 +783,8 @@ easy to create:: for index in range(len(data)-1, -1, -1): yield data[index] +:: + >>> for char in reverse('golf'): ... print(char) ... |