pandas.errors.InvalidIndexError

exception pandas.errors.InvalidIndexError

Exception raised when attempting to use an invalid index key.

This exception is triggered when a user attempts to access or manipulate data in a pandas DataFrame or Series using an index key that is not valid for the given object. This may occur in cases such as using a malformed slice, a mismatched key for a MultiIndex, or attempting to access an index element that does not exist.

See also

MultiIndex

A multi-level, or hierarchical, index object for pandas objects.

Examples

>>> idx = pd.MultiIndex.from_product([["x", "y"], [0, 1]])
>>> df = pd.DataFrame([[1, 1, 2, 2], [3, 3, 4, 4]], columns=idx)
>>> df
    x       y
    0   1   0   1
0   1   1   2   2
1   3   3   4   4
>>> df[:, 0]
Traceback (most recent call last):
InvalidIndexError: (slice(None, None, None), 0)