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added a compression argument to to_csv to be sent to _get_handle #2636

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added a compression argument to to_csv to be sent to _get_handle #2636

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8 changes: 6 additions & 2 deletions pandas/core/frame.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1343,7 +1343,7 @@ def _helper_csv(self, writer, na_rep=None, cols=None,
def to_csv(self, path_or_buf, sep=",", na_rep='', float_format=None,
cols=None, header=True, index=True, index_label=None,
mode='w', nanRep=None, encoding=None, quoting=None,
line_terminator='\n'):
line_terminator='\n', compression=None):
"""
Write DataFrame to a comma-separated values (csv) file

Expand Down Expand Up @@ -1380,6 +1380,10 @@ def to_csv(self, path_or_buf, sep=",", na_rep='', float_format=None,
file
quoting : optional constant from csv module
defaults to csv.QUOTE_MINIMAL
compression : string, optional
a string representing the compression to use in the output file,
currently only supports gzip and bz2 (see core.common._get_handle),
only used when the first argument is a filename
"""
if nanRep is not None: # pragma: no cover
import warnings
Expand All @@ -1391,7 +1395,7 @@ def to_csv(self, path_or_buf, sep=",", na_rep='', float_format=None,
f = path_or_buf
close = False
else:
f = com._get_handle(path_or_buf, mode, encoding=encoding)
f = com._get_handle(path_or_buf, mode, encoding=encoding, compression=compression)
close = True

if quoting is None:
Expand Down