corrections

Author: jreback

pandas/errors/__init__.py

@@ -21,36 +21,34 @@ class UnsupportedFunctionCall(ValueError):
 
 
 class UnsortedIndexError(KeyError):
-    """ Error raised when attempting to get a slice of a MultiIndex
+    """
+    Error raised when attempting to get a slice of a MultiIndex
     and the index has not been lexsorted. Subclass of `KeyError`.
 
     .. versionadded:: 0.20.0
 
     """
-    pass
 
 
 class ParserError(ValueError):
     """
     Exception that is thrown by an error is encountered in `pd.read_csv`
     """
-    pass
 
 
 class DtypeWarning(Warning):
     """
-    Warning that is raised whenever `pd.read_csv` encounters non-
+    Warning that is raised for a dtype incompatiblity. This is
+    can happen whenever `pd.read_csv` encounters non-
     uniform dtypes in a column(s) of a given CSV file
     """
-    pass
 
 
 class EmptyDataError(ValueError):
     """
     Exception that is thrown in `pd.read_csv` (by both the C and
     Python engines) when empty data or header is encountered
     """
-    pass
 
 
 class ParserWarning(Warning):
@@ -60,4 +58,3 @@ class ParserWarning(Warning):
     one specified by the user due to lack of support or functionality for
     parsing particular attributes of a CSV file with the requsted engine
     """
-    pass

pandas/tslib.py

@@ -3,6 +3,6 @@
 import warnings
 warnings.warn("The pandas.tslib module is deprecated and will be "
               "removed in a future version. Please import from "
-              "the pandas or pandas.api.exceptions instead", FutureWarning, stacklevel=2)
+              "the pandas or pandas.errors instead", FutureWarning, stacklevel=2)
 from pandas._libs.tslib import (Timestamp, Timedelta,
                                NaT, OutOfBoundsDatetime)