Question

This is my test code, test.py:

str = input("IP: ")                                               
print(str) 

When running I get this error:

➜  PingScript git:(master) ✗ python test.py                      
IP: 1.1.1.1 


Traceback (most recent call last):                      
  File "test.py", line 1, in <module>                            
    str = input("IP: ")                                          
  File "<string>", line 1                                         
    1.1.1.1                                                      
        ^                                                 
SyntaxError: invalid syntax 

This happens only if I use 1.1.1.1 as input and not if I use 1.1 as input, what is happening here? I’ve tried to parse it with str(str) but I still get the same error.

Answer 1

input() tries to parse the input as a python expression. Use raw_input() instead.

It works with 1.1 as input because that’s a literal float value, a number, in python.

It could be that you are following a tutorial meant for Python 3, but are using Python 2 instead. In Python 3, the raw_input() function was renamed to input() and the old input() function was removed altogether. If so, please install Python 3 and continue from there.