Trait Types¶

class traitlets.TraitType¶: The base class for all trait types.

Numbers¶

class traitlets.Integer¶: An integer trait. On Python 2, this automatically uses the int or long types as necessary.

class traitlets.Int¶

class traitlets.Long¶

On Python 2, these are traitlets for values where the int and long types are not interchangeable. On Python 3, they are both aliases for Integer.

In almost all situations, you should use Integer instead of these.

class traitlets.CInt¶
class traitlets.CLong¶
class traitlets.CFloat¶
class traitlets.CComplex¶: Casting variants of the above. When a value is assigned to the attribute, these will attempt to convert it by calling e.g. value = int(value).

Strings¶

class traitlets.CUnicode¶
class traitlets.CBytes¶: Casting variants. When a value is assigned to the attribute, these will attempt to convert it to their type. They will not automatically encode/decode between unicode and bytes, however.

Containers¶

Classes and instances¶

Miscellaneous¶

class traitlets.CBool¶: Casting variant. When a value is assigned to the attribute, this will attempt to convert it by calling value = bool(value).