A randomly generated phone number

Write program 138 generates a random number at the beginning of the phone
1, input a number, the phone number generating article xx
prefix = '138'
2, resulting from these phone numbers can be overlapped

Random Import 
Import String 

COUNT = INPUT ( "Please enter the number of the phone number to be generated:") 

IF count.isdigit (): 
    PhoneList = [] 
    for I in Range (int (COUNT)): 
        prefix = '138' 
        Phone = + prefix '' .join (random.sample (string.digits, 9)) 
        IF not in PhoneList phone: 
            phonelist.append (phone) 
            Print ( "phone number:", PhoneList) 
        the else: 
            Print ( "repeat phone number") 

the else: 
    Print ( "Please enter the correct number.")