Correct way to pause a Python program

Question

It Seems fine to me (or raw_input() in Python 2.X). Alternatively, you could use time.sleep() if you want to pause for a certain number of seconds.

import time
print("something")
time.sleep(5.5)    # Pause 5.5 seconds
print("something")

For Windows only, use:

import os
os.system("pause")

So, I found this to work very well in my coding endeavors. I simply created a function at the very beginning of my program,

def pause():
    programPause = raw_input("Press the <ENTER> key to continue...")

and now I can use the pause() function whenever I need to just as if I was writing a batch file. For example, in a program such as this:

import os
import system

def pause():
    programPause = raw_input("Press the <ENTER> key to continue...")

print("Think about what you ate for dinner last night...")
pause()

Now obviously this program has no objective and is just for example purposes, but you can understand precisely what I mean.

NOTE: For Python 3, you will need to use input as opposed to raw_input

I assume you want to pause without input.

Use:

time.sleep(seconds)

I have had a similar question and I was using signal:

import signal

def signal_handler(signal_number, frame):
    print "Proceed ..."

signal.signal(signal.SIGINT, signal_handler)
signal.pause()

So you register a handler for the signal SIGINT and pause waiting for any signal. Now from outside your program (e.g. in bash), you can run kill -2 <python_pid>, which will send signal 2 (i.e. SIGINT) to your python program. Your program will call your registered handler and proceed running.