Code to ask for user string, then display the output

Question

# printstring.py
# 7/8/2016
import sys
# ask for user input
s_string = input('Enter a string: ')
# if no string, then exit()
if s_string == '':
 sys.exit()
# display the output
print(s_string)

Also wondering how to get "raw" input and output the text properly formatted with line breaks, etc. Also looking for general feedback and tips for improvement.

• Perry: The second part of your question ("raw" io) belongs on Stack Overflow instead.

Answer 1

More elegant way to check if a string is empty Read here

if not s_string:
 sys.exit()

You don't need a sys.exit(), just let the program exit on its own.

if s_string:
 print(s_string)
# the program will exit here anyway. 

sys.exit() has some side-effects like killing the python interpreter, which might have some undesirable effects. Read here

You don't even need to check if the string is empty

print(s_string) # If string is empty, will print nothing except for a newline.

Name s_string just s or string.

It doesn't detract from the readability of the code, and makes it more pretty and easier to type(and read)

Most people tend to prefer double quotes " for string literals Read Here

• TheBlackCat: print(s_string) will print a blank line if s_string is empty.
• Majiick: Oh, indeed! Thanks for pointing that out, will edit.