Beginner Code

[buran]

Simply that Python2 doesn't accept the single quotation mark, as I've said. By adding one more mark, Python2 works properly. Easy to verify, try it!

Well, it's really easy to show that it works with a single quote and NOT work with double single quotes when you pass something taht input will consider variable name:

Python 2.7.6 (default, Jun 22 2015, 17:58:13) 
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> your_name = input("What''s your name?")
What''s your name?Billy
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<string>", line 1, in <module>
NameError: name 'Billy' is not defined
>>> your_name = input("What's your name?")
What's your name?1
>>> your_name
1
>>> your_name = input("What's your name?")
What's your name?[1, 2, 3]
>>> your_name
[1, 2, 3]
>>>