pandas to_csv output quoting issue

You could pass quoting=csv.QUOTE_NONE, for example:

>>> df.to_csv('foo.txt',index=False,header=False)
>>> !cat foo.txt
123,"this is ""out text"""
>>> import csv
>>> df.to_csv('foo.txt',index=False,header=False, quoting=csv.QUOTE_NONE)
>>> !cat foo.txt
123,this is "out text"

but in my experience it’s better to quote more, rather than less.