I've always found the string-building idiom
temp_list = []
for x in various_pieces_of_output():
v = go_figure_out_some_string()
temp_list.append(v)
final_string = ''.join(temp_list)
completely repulsive. As an alternative I suggest
temp_buf = StringIO()
for x in various_pieces_of_output():
v = go_figure_out_some_string()
temp_buf += v
final_string = temp_buf.getvalue()
here, "temp_buf += v" is supposed to be the same as "temp_buf.write(v)".
So the suggestion is to add a __iadd__ method to StringIO and cStringIO.
Any thoughts?
Also, I wonder if it's now ok to eliminate the existing StringIO
module (make it an alias for cStringIO) now that new-style classes
permit extending cStringIO.StringIO.
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