Added line_terminator parameter to DataFrame.to_csv

Author: adamobeng

pandas/core/frame.py

@@ -1305,7 +1305,7 @@ 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):
+               mode='w', nanRep=None, encoding=None, quoting=None, line_terminator='\n'):
         """
         Write DataFrame to a comma-separated values (csv) file
 
@@ -1336,6 +1336,8 @@ def to_csv(self, path_or_buf, sep=",", na_rep='', float_format=None,
         encoding : string, optional
             a string representing the encoding to use if the contents are
             non-ascii, for python versions prior to 3
+        line_terminator: string, default '\n'
+            The newline character or character sequence to use in the output file
         """
         if nanRep is not None:  # pragma: no cover
             import warnings
@@ -1355,11 +1357,11 @@ def to_csv(self, path_or_buf, sep=",", na_rep='', float_format=None,
 
         try:
             if encoding is not None:
-                csvout = com.UnicodeWriter(f, lineterminator='\n',
+                csvout = com.UnicodeWriter(f, lineterminator=line_terminator,
                                            delimiter=sep, encoding=encoding,
                                            quoting=quoting)
             else:
-                csvout = csv.writer(f, lineterminator='\n', delimiter=sep,
+                csvout = csv.writer(f, lineterminator=line_terminator, delimiter=sep,
                                     quoting=quoting)
             self._helper_csv(csvout, na_rep=na_rep,
                                   float_format=float_format, cols=cols,