51c51
< except KeyError, e:
---
> except KeyError as e:
55c55
< raise KeyError, e
---
> raise KeyError(e)
64c64
< except KeyError, e:
---
> except KeyError as e:
68c68
< raise KeyError, e
---
> raise KeyError(e)
109c109
< except KeyError, e:
---
> except KeyError as e: