我想访问function.Python中if语句的变量

Question

def Home(request):#django

    if request.method == 'POST':
        city = request.POST.get('search')
        print(city)
        
    URL = f'http://api.openweathermap.org/data/2.5/weather?q={city}

Answer 1

将变量设置在if之前：

def Home(request):#django
    city = ''
    if request.method == 'POST':
        city = request.POST.get('search')
        print(city)
        
    URL = f'http://api.openweathermap.org/data/2.5/weather?q={city}