Cannot have type `List[str]`? - `TypeError: Cannot interpret 'typing.List[str]' as a data type`

[fzyzcjy]

Describe the bug

Hi thanks for the lib! But it seems that I cannot have type List[str] in a series

A clear and concise description of what the bug is.

• [x] I have checked that this issue has not already been reported.
• [x] I have confirmed this bug exists on the latest version of pandera.
• [ ] (optional) I have confirmed this bug exists on the master branch of pandera.

Note: Please read this guide detailing how to provide the necessary information for us to reproduce your bug.

Code Sample, a copy-pastable example

# Your code here
from typing import List

import pandera as pa
from pandera.typing import Series, DataFrame

class MySchema(pa.SchemaModel):
    # my_field: Series[str] = pa.Field()
    my_field: Series[List[str]] = pa.Field()

df = DataFrame[MySchema](dict(
    my_field=[
        # [1]
        ['a']
    ]
))
print(df)

Expected behavior

A clear and concise description of what you expected to happen.

1. If use type List[str], it should only accept values when it is a list of str -- but currently it is not
2. If use type str, it should throw if the value is a list of str -- but currently it is not

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• Browser [e.g. chrome, safari]
• Version [e.g. 22]

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Additional context

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[cosmicBboy]

hi @fzyzcjy this is pretty much captured in https://github.com/unionai-oss/pandera/issues/260, gonna close this issue out as a duplicate. Feel free to chime in at #260 and open up a PR if you're open to contribute!