ENH: tilde expansion for write output formatting functions, #11438

Author: aechase

doc/source/whatsnew/v0.17.1.txt

@@ -93,6 +93,7 @@ Enhancements
 
 - ``pivot_table`` now has a ``margins_name`` argument so you can use something other than the default of 'All' (:issue:`3335`)
 - Implement export of ``datetime64[ns, tz]`` dtypes with a fixed HDF5 store (:issue:`11411`)
+- The ``DataFrame`` and ``Series`` functions ``.to_csv()``, ``.to_html()`` and ``.to_latex()`` can now handle paths beginning with tildes (e.g. ``~/Documents/``). (:issue:`11438`)
 
 .. _whatsnew_0171.api:
 

pandas/core/frame.py

@@ -53,7 +53,7 @@
 from pandas.tseries.period import PeriodIndex
 from pandas.tseries.index import DatetimeIndex
 from pandas.tseries.tdi import TimedeltaIndex
-
+from pandas.io.common import _expand_user
 
 import pandas.core.algorithms as algos
 import pandas.core.base as base
@@ -1315,7 +1315,7 @@ def to_csv(self, path_or_buf=None, sep=",", na_rep='', float_format=None,
             .. versionadded:: 0.16.0
 
         """
-
+        path_or_buf = _expand_user(path_or_buf)
         formatter = fmt.CSVFormatter(self, path_or_buf,
                                      line_terminator=line_terminator,
                                      sep=sep, encoding=encoding,
@@ -1518,6 +1518,7 @@ def to_html(self, buf=None, columns=None, col_space=None, colSpace=None,
                           FutureWarning, stacklevel=2)
             col_space = colSpace
 
+        buf = _expand_user(buf)
         formatter = fmt.DataFrameFormatter(self, buf=buf, columns=columns,
                                            col_space=col_space, na_rep=na_rep,
                                            formatters=formatters,
@@ -1568,6 +1569,7 @@ def to_latex(self, buf=None, columns=None, col_space=None, colSpace=None,
                           FutureWarning, stacklevel=2)
             col_space = colSpace
 
+        buf = _expand_user(buf)
         formatter = fmt.DataFrameFormatter(self, buf=buf, columns=columns,
                                            col_space=col_space, na_rep=na_rep,
                                            header=header, index=index,