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Clarify encoding kwarg on to_csv #8857

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Nov 20, 2014
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Clarify encoding kwarg on to_csv #8857

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4 changes: 2 additions & 2 deletions pandas/core/frame.py
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Expand Up @@ -1137,8 +1137,8 @@ def to_csv(self, path_or_buf=None, sep=",", na_rep='', float_format=None,
mode : str
Python write mode, default 'w'
encoding : string, optional
a string representing the encoding to use if the contents are
non-ascii, for python versions prior to 3
A string representing the encoding to use in the output file,
defaults to 'ascii' on Python 2 and 'utf-8' on Python 3.
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this actually defaults to the sys.encoding (which has those defaults) IIRC. maybe need someone non-us to verify this?

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I'm not sure on the semantics for Python 3, but for Python 2 the csv modules does ASCII only (or at least doesn't mention sys.encoding at all), not sure if we've changed the defaults internally.

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The default encoding is indeed ascii for py2 and utf-8 for py3. There is a way to change that but it involves quite a bit of magic: http://stackoverflow.com/questions/2276200/changing-default-encoding-of-python

line_terminator : string, default '\\n'
The newline character or character sequence to use in the output
file
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