Question

We will be creating an application to interacts with a webservice in order to obtain data.

Your program will use all of the information you’ve learned in the class in order to create a useful application.

Your program must prompt the user for their city or zip code and request weather forecast data from OpenWeatherMap:

http://openweathermap.org/

Your program must display the weather information in a READABLE format to the user.

Requirements: Create a header for your program just as you have in the past.

Create a Python Application which asks the user for their zip code or city.

Use the zip code or city name in order to obtain weather forecast data from OpenWeatherMap.

Display the weather forecast in a readable format to the user. Use comments within the application where appropriate in order to document what the program is doing.

Use functions including a main function.

Allow the user to run the program multiple times to allow them to look up weather conditions for multiple locations. Validate whether the user entered valid data.

If valid data isn’t presented notify the user.

Use the Requests library in order to request data from the webservice.

Use Try blocks to ensure that your request was successful.

If the connection was not successful display a message to the user.

Use Python 3

Use try blocks when establishing connections to the webservice.

You must print a message to the user indicating whether or not the connection was successful

Notes: Be creative. This assignment is a real world program. Use it as an opportunity to improve your knowledge. Sign up for API Key. The API key will look something similar to this: d5751b1a9e2e4b2b8c7983646072da8b

Make a connection to the API using the Requests library.

Answer 1

NOTE: You need to follow the following steps to make the program work.

1) Create an account at the website "openweathermap.org" .

2) Then, you need to copy the api_key from the same site at "home.openweathermap.org/api_keys"

3) Paste it into the api_key variable in the weather_data function of the python program.

4) Run the program

Screenshot:

CODE:

# import required modules
import requests

# function to request for data
def weather_data(query):
   # Enter your API key here
   api_key = ""
   # base_url variable to store url
   base_url = "http://api.openweathermap.org/data/2.5/weather?"
   complete_url = base_url + "appid=" + api_key + "&" + query
   # response object
   res=requests.get(complete_url);
   return res.json();

# function to display results
def display_results(weathers,city):
   print("{}'s temperature: {}°C ".format(city,weathers['main']['temp']))
   print("Wind speed: {} m/s".format(weathers['wind']['speed']))
   print("Description: {}".format(weathers['weather'][0]['description']))
   print("Weather: {}".format(weathers['weather'][0]['main']))

# main function
def main():
   # Give city name
   city=input('Enter the city:')
   print()
   # try-except block
   try:
      query='q='+city;
      w_data=weather_data(query);
      display_results(w_data, city)
      print()
   except:
      print('City name not found')

if __name__=='__main__':
   main()