General utility functions#
Working with options#
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Prints the description for one or more registered options. |
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Reset one or more options to their default value. |
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Retrieves the value of the specified option. |
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Sets the value of the specified option. |
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Context manager to temporarily set options in the with statement context. |
Testing functions#
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Check that left and right DataFrame are equal. |
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Check that left and right Series are equal. |
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Check that left and right Index are equal. |
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Check that left and right ExtensionArrays are equal. |
Exceptions and warnings#
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Raise this error instead of NotImplementedError for abstract methods while keeping compatibility with Python 2 and Python 3. |
Warning for attribute conflicts in accessor registration. |
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Warning raised when reading different dtypes in a column from a file. |
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Error raised when an operation would introduce duplicate labels. |
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Exception that is thrown in pd.read_csv (by both the C and Python engines) when empty data or header is encountered. |
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Exception raised when attempting to use an invalid index key. |
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Raised when attempting an astype operation on an array with NaN to an integer dtype. |
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Error raised when problems arise during merging due to problems with input data. |
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Error raised when a null freq attribute is used in an operation that needs a non-null frequency, particularly DatetimeIndex.shift, TimedeltaIndex.shift, PeriodIndex.shift. |
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Error raised for unsupported Numba engine routines. |
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Exception for pandas.options, backwards compatible with KeyError checks. |
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Raised when encountering a timedelta value that cannot be represented as a timedelta64[ns]. |
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Exception that is raised by an error encountered in parsing file contents. |
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Warning raised when reading a file that doesn't use the default 'c' parser. |
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Warning raised when there is a possible performance impact. |
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Error raised when attempting to get a slice of a MultiIndex, and the index has not been lexsorted. |
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Exception raised when attempting to call a numpy function on a pandas object, but that function is not supported by the object e.g. |
Bug report function#
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Provide useful information, important for bug reports. |