class_name.py throws TypeError

[jorritsma]

Hi,

Interesting library! I am a newby and tried a hello-world app, with the default code. I run the code in a Docker container on Python 3.9. I get this TypeError:

File "/usr/local/lib/python3.9/site-packages/fastui/class_name.py", line 6, in
ClassName = Annotated[str | list[str] | dict[str, bool | None] | None, Field(serialization_alias='className')]
TypeError: unsupported operand type(s) for |: 'type' and 'types.GenericAlias'

Any suggestions?

Kind regards, Harmen

[hasansezertasan]

It's an incompatibility issue with the new syntax for Union. I believe | operand doesn't work on 3.9, it's fixed in #66

Solutions:

• Upgrade your python version
• Install the package using git (something like pip install https://github.com/pydantic/FastUI)
• Wait for the next release.

[jorritsma]

Thanks. I tried running fastUI with Python 3.10 instead of 3.9 and I tried with the latest fastUI via github. Both doesn't solve the TypeError. I will wait for the next release.

[samuelcolvin]

I'll do a release soon, to use the current release, you need 3.11.

[samuelcolvin]

this is fixed since I released v0.3.0 yeseterday.