Python Draft (P Gen)

#Importing the necessary modules!
import random
import string

#Welcome
print("Welcome to Password Generator!")

#Forcing number input
while True:      # keep looping until we break out of the loop
    try:
        length = int(input("Please enter the desired length for your password: "))
        break    # exit the loop if the previous line succeeded
    except ValueError:
        print("Please enter an number!") # loop back until input is a number

# If program execution makes it here, we know that "length" is a number
#define data
lower = string.ascii_lowercase
upper = string.ascii_uppercase
num = string.digits
symbols = string.punctuation

#Combining the data
all = lower + upper + num + symbols

temp = random.sample(all,length)

#Creating the password
password = "".join(temp)

#Printing the password
print(password)