How to combine multiple column values into 1?

[deanhystad]

They should not be using "QUOTE_NONE". The default is "QUOTE_MINIMAL" which is what you want. This will not quote strings unless they contain a delimiter (comma is the default delimiter) or a newline. They should not be using escapechar either.

mode="a" is also suspect. This will append to an existing file.
header=None is probably wrong too.
index=None. Hey, they got that one right!