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---
title: Object is not an Class Error
---
# Object is not an Class Error
## Description
This error is thrown when applying `@strawberry.type/interface/input` to a
non-class object, for example the following code will throw this error:
```python
import strawberry
@strawberry.type
def a_function(): ...
@strawberry.type
class Query:
field: a_function
schema = strawberry.Schema(query=Query)
```
This happens because Strawberry expects all enums to be subclasses of `Enum`.
## How to fix this error
You can fix this error by making sure the class you're applying
`@strawberry.type/interface/input` to is a class. For example, the following
code will fix this error:
```python
import strawberry
@strawberry.type
class AFunction:
field: int
@strawberry.type
class Query:
field: AFunction
schema = strawberry.Schema(query=Query)
```
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