data_manager.py

from pprint import pprint
import requests

SHEETY_PRICES_ENDPOINT = YOUR SHEETY PRICES ENDPOINT URL


class DataManager:

    def __init__(self):
        self.destination_data = {}

    def get_destination_data(self):
        # 2. Use the Sheety API to GET all the data in that sheet and print it out.
        response = requests.get(url=SHEETY_PRICES_ENDPOINT)
        data = response.json()
        self.destination_data = data["prices"]
        # 3. Try importing pretty print and printing the data out again using pprint().
        # pprint(data)
        return self.destination_data


    # 6. In the DataManager Class make a PUT request and use the row id  from sheet_data
    # to update the Google Sheet with the IATA codes. (Do this using code).
    def update_destination_codes(self):
        for city in self.destination_data:
            new_data = {
                "price": {
                    "iataCode": city["iataCode"]
                }
            }
            response = requests.put(
                url=f"{SHEETY_PRICES_ENDPOINT}/{city['id']}",
                json=new_data
            )
            print(response.text)

flight_search.py

import requests

TEQUILA_ENDPOINT = "https://tequila-api.kiwi.com"
TEQUILA_API_KEY = YOUR FLIGHT SEARCH API KEY


class FlightSearch:

    def get_destination_code(self, city_name):
        location_endpoint = f"{TEQUILA_ENDPOINT}/locations/query"
        headers = {"apikey": TEQUILA_API_KEY}
        query = {"term": city_name, "location_types": "city"}
        response = requests.get(url=location_endpoint, headers=headers, params=query)
        results = response.json()["locations"]
        code = results[0]["code"]
        return code

main.py

# 4. Pass the data back to the main.py file, so that you can print the data from main.py
from data_manager import DataManager
data_manager = DataManager()
sheet_data = data_manager.get_destination_data()
# print(sheet_data)

#  5. In main.py check if sheet_data contains any values for the "iataCode" key.
#  If not, then the IATA Codes column is empty in the Google Sheet.
#  In this case, pass each city name in sheet_data one-by-one
#  to the FlightSearch class to get the corresponding IATA code
#  for that city using the Flight Search API.
#  You should use the code you get back to update the sheet_data dictionary.
if sheet_data[0]["iataCode"] == "":
    from flight_search import FlightSearch
    flight_search = FlightSearch()
    for row in sheet_data:
        row["iataCode"] = flight_search.get_destination_code(row["city"])
    print(sheet_data)
    
    data_manager.destination_data = sheet_data
    data_manager.update_destination_codes()

Hi there. I have a problem. I сan't register on tequila.kiwi.com. Has anyone encountered this problem?
same here

Try using aviationstack instead

If you try using Tequila and it doesn't give you access, try aviationstack and finally input the IATA codes directly to sheet and continue the task. i spent a whole day searching for APIs with no success in sight. Patience is Key

I used "avaiationstack" instead of "Tequila". Here is the code for flight_search class.

@ShmRhm
I know Angela looked at Aviationstack when Tequila became unviable. I think the limited free requests (100 per month) put her off. Did you find that this was an issue for you?