wpCreateCategories.py

def get_category_ids(self, categories):
    category_ids = []
    category_endpoint = f"{self._endpoint}categories"
    for category in categories:
        response = self.session.post(category_endpoint, json={"name": category})
        # The term already exists
        if "data" in response.json():
            category_ids.append(response.json()["data"]["term_id"])
        elif "id" in response.json():
            category_ids.append(response.json()["id"])

    return category_ids