"Invalid value (null) for boolean" when trying to update a digital listing

[ramibch]

I am trying to update a listing with the API V3 and I get the error: 400 "Invalid value (null) for boolean"

Here a method in python

    def update_in_etsy(self):
        if self.listing_id is None:
            Bot.to_admin(f"Not possible to update listing ({self.id}).")
            return

        api_client = ExtendedEtsyAPI(
            keystring=self.etsy_auth.app.keystring,
            token=self.etsy_auth.access_token,
            refresh_token=self.etsy_auth.refresh_token,
            expiry=self.etsy_auth.expires_at,
            refresh_save=auth_refresh_save,
        )

        shop_id = self.etsy_auth.shop_id

        request_listing = UpdateListingRequest(
            title=self.title,
            description=self.description,
            should_auto_renew=self.should_auto_renew or False,
            shop_section_id=self.shop_section_id,
            is_taxable=self.is_taxable or True,
            taxonomy_id=self.taxonomy_id,
            tags=self.tags,
            who_made=self.who_made,
            when_made=self.when_made,
            featured_rank=self.featured_rank,
            is_personalizable=self.is_personalizable or False,
            personalization_is_required=self.personalization_is_required or False,
            personalization_char_count_max=self.personalization_char_count_max,
            personalization_instructions=self.personalization_instructions,
            state=self.state,
            is_supply=self.is_supply or False,
            listing_type=self.listing_type,
        )

        response = api_client.update_listing_deprecated(
            shop_id=shop_id,
            listing_id=self.listing_id,
            listing=request_listing,
        )
        breakpoint()

The content of my listing is the following:

In [5]: l.__dict__
Out[5]: 
{'_state': <django.db.models.base.ModelState at 0x734cab2327b0>,
 'id': 47,
 'etsy_auth_id': 25,
 'quantity': 913,
 'title': 'Test listing',
 'description': 'My new description',
 'price': 5.65,
 'who_made': 'i_did',
 'when_made': '2020_2025',
 'taxonomy_id': 126,
 'shop_section_id': None,
 'tags': 'tag1, tag2, tag3, tag4',
 'is_personalizable': False,
 'personalization_is_required': None,
 'personalization_char_count_max': None,
 'personalization_instructions': None,
 'is_customizable': None,
 'should_auto_renew': False,
 'is_taxable': False,
 'listing_type': 'download',
 'is_supply': False,
 'listing_id': 1864668768,
 'state': 'draft',
 'creation_timestamp': 1740333447,
 'created_timestamp': 1740333447,
 'ending_timestamp': 1750697847,
 'original_creation_timestamp': 1740333447,
 'last_modified_timestamp': 1740333448,
 'updated_timestamp': 1740333448,
 'state_timestamp': 1740333447,
 'featured_rank': -1,
 'url': 'https://www.etsy.com/listing/1864668768/test-listing',
 'num_favorers': 0,
 'non_taxable': False,
 'is_private': False,
 'language': 'de',
 'etsy_dict': None}

What am I doing wrong? I checked the docs and for me the code is fine. I tried PATCH and PUT methods:

• PUT method: https://developers.etsy.com/documentation/reference/#operation/updateListingDeprecated
• PATCH method: https://developers.etsy.com/documentation/reference/#operation/updateListing

Many thanks!