Detect whether a dataframe has a MultiIndex

Question

I am building a new method to parse a `DataFrame` into a Vincent-compatible format. This requires a standard `Index` (Vincent can't parse a `MultiIndex`). Is there a way to detect whether a Pandas `DataFrame` has a `MultiIndex`? ``` In: type(frame) Out: pandas.core.index.MultiIndex ``` I've tried: ``` In: if type(result.index) is 'pandas.core.index.MultiIndex': print True else: print False Out: False ``` If I try without quotations I get: ``` NameError: name 'pandas' is not defined ``` Any help appreciated. (Once I have the `MultiIndex`, I'm then resetting the index and merging the two columns into a single string value for the presentation stage.)

Accepted Answer

You can use `isinstance` to check whether an object is a class (or its subclasses):

```
if isinstance(result.index, pandas.MultiIndex):
```

Detect whether a dataframe has a MultiIndex

Solution

Problem