when I add cv's row , why can't I insert property about notion-py

[M0nk2ySion]

I Confirm Success when I change property's name to lower case
Why Can't use upper case

[jamalex]

The property names, when accessed as attributes on the record instance, are "slugified", which makes them lowercase and replaces special characters and spaces with "_".

To make it a bit more tolerant, I've added some normalization code in #88 that will go into an upcoming release, which will allow varied case when setting attributes.