BUG: sort out unicode/str/repr and py2/3 for Period Objects GH3363

PTF

Author: y-p

pandas/tseries/period.py

@@ -13,6 +13,7 @@
 
 import pandas.core.common as com
 from pandas.core.common import isnull
+from pandas.util import py3compat
 
 from pandas.lib import Timestamp
 import pandas.lib as lib
@@ -264,12 +265,49 @@ def __repr__(self):
         base, mult = _gfc(self.freq)
         formatted = tslib.period_format(self.ordinal, base)
         freqstr = _freq_mod._reverse_period_code_map[base]
-        return u"Period('%s', '%s')" % (formatted, freqstr)
+
+        if not py3compat.PY3:
+            encoding = com.get_option("display.encoding")
+            formatted = formatted.encode(encoding)
+
+        return "Period('%s', '%s')" % (formatted, freqstr)
 
     def __str__(self):
+        """
+        Return a string representation for a particular DataFrame
+
+        Invoked by str(df) in both py2/py3.
+        Yields Bytestring in Py2, Unicode String in py3.
+        """
+
+        if py3compat.PY3:
+            return self.__unicode__()
+        return self.__bytes__()
+
+    def __bytes__(self):
+        """
+        Return a string representation for a particular DataFrame
+
+        Invoked by bytes(df) in py3 only.
+        Yields a bytestring in both py2/py3.
+        """
+        encoding = com.get_option("display.encoding")
+        return self.__unicode__().encode(encoding, 'replace')
+
+    def __unicode__(self):
+        """
+        Return a string representation for a particular DataFrame
+
+        Invoked by unicode(df) in py2 only. Yields a Unicode String in both
+        py2/py3.
+        """
         base, mult = _gfc(self.freq)
         formatted = tslib.period_format(self.ordinal, base)
-        return (u"%s" % formatted)
+        value = (u"%s" % formatted)
+        assert type(value) == unicode
+
+        return value
+
 
     def strftime(self, fmt):
         """