# flake8: noqa """ Expose public exceptions & warnings """ from pandas._libs.tslib import OutOfBoundsDatetime class PerformanceWarning(Warning): """ Warning raised when there is a possible performance impact. """ class UnsupportedFunctionCall(ValueError): """ Exception raised when attempting to call a numpy function on a pandas object, but that function is not supported by the object e.g. ``np.cumsum(groupby_object)``. """ class UnsortedIndexError(KeyError): """ 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 """ class ParserError(ValueError): """ Exception that is raised by an error encountered in `pd.read_csv`. """ class DtypeWarning(Warning): """ Warning that is raised for a dtype incompatiblity. This can happen whenever `pd.read_csv` encounters non- uniform dtypes in a column(s) of a given CSV file. """ 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. """ class ParserWarning(Warning): """ Warning that is raised in `pd.read_csv` whenever it is necessary to change parsers (generally from 'c' to 'python') contrary to the one specified by the user due to lack of support or functionality for parsing particular attributes of a CSV file with the requsted engine. """ class MergeError(ValueError): """ Error raised when problems arise during merging due to problems with input data. Subclass of `ValueError`. """