python - Why does "none" come up when using time.sleep?

Question

import time
import random

print "Wanna play a game?"

raw_input(),
time.sleep(1)
print ("Think of a number (1-5), I won't see, I promise. 
"),
    time.sleep(5)

print "You picked? Now write it down."
raw_input(),
time.sleep(3)

print ("Let me guess... 
"),
    time.sleep(2)

print ((random.randint(1, 5))), 
    time.sleep(20000)

When I run it in terminal, this happens:

Wanna play a game?

yes
Think of a number (1-5), I won't see, I promise. 
None
You picked? Now write it down.
Let me guess... 
None
1

Why does "none" pop up?

Answer 1

The , in your code adding a new argument to the print statements and printing it, which in this case is the return value of time.sleep() (None)

Remove those, fix the indentation, and it works.

import time
import random

print "Wanna play a game?"

raw_input()
time.sleep(1)
print ("Think of a number (1-5), I won't see, I promise. 
")
time.sleep(5)

print "You picked? Now write it down."
raw_input()
time.sleep(3)

print ("Let me guess... 
")
time.sleep(2)

print ((random.randint(1, 5)))
time.sleep(20000)

Output:

Wanna play a game?
y
Think of a number (1-5), I won't see, I promise. 
You picked? Now write it down.
1
Let me guess... 
3