Raise the right exception (ValueError) for attempted I/O on closed StringIO objects; this makes the emulation of file objects a bit better, and the exceptions explain things a bit better.
Raise the right exception (ValueError) for attempted I/O on closed StringIO
objects; this makes the emulation of file objects a bit better, and the
exceptions explain things a bit better.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator