In irc 3.4.1, a bug was introduced whereby the LineBuffer is not returning an iterable:
>>> import irc.client
>>> buf = irc.client.LineBuffer()
>>> buf.feed('foo\n')
>>> for x in buf:
... print(x)
...
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: iter() returned non-iterator of type 'list'
In irc 3.4.1, a bug was introduced whereby the LineBuffer is not returning an iterable: