def parseCities(data):
'''
This function will parse all the cities' information from provided Json file
And add parsed city information into city dictionary
Also update continent dictionary
'''
for city in data["metros"]:
portCity = CityInfo.CityInfo(city["code"], city["name"], city["country"],
city["continent"], city["timezone"], city["coordinates"],
city["population"], city["region"])
QueryingData.cityDicationary[city["name"]] = portCity #add city to city dictionary
QueryingData.codeToName[city["code"]] = city["name"]
UserQuerying.cityToContinent(city["name"], city["continent"]) #classic cities based on continent
