SF patch# 1770008 by Christian Heimes (plus some extras).
Completely get rid of StringIO.py and cStringIO.c.
I had to fix a few tests and modules beyond what Christian did, and
invent a few conventions. E.g. in elementtree, I chose to
write/return Unicode strings whe no encoding is given, but bytes when
an explicit encoding is given. Also mimetools was made to always
assume binary files.
diff --git a/Lib/io.py b/Lib/io.py
index 43695be..1ee465a 100644
--- a/Lib/io.py
+++ b/Lib/io.py
@@ -303,6 +303,8 @@
Returns False if we don't know.
"""
+ if self.closed:
+ raise ValueError("isatty() on closed file")
return False
### Readline[s] and writelines ###
@@ -1239,8 +1241,11 @@
encoding=encoding,
newline=newline)
if initial_value:
+ if not isinstance(initial_value, basestring):
+ initial_value = str(initial_value)
self.write(initial_value)
self.seek(0)
def getvalue(self):
+ self.flush()
return self.buffer.getvalue().decode(self._encoding)