input( )

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November 1st, 2003, 04:59 PM

xlordt

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input( )

Ok i started learning python last night so bear with me here...

The following code works.. but there is one problem
when i enter 1 or 2 i get what i programed it to do.. but if i was to just hit enter.. the program gives me an error as follow

File "./p.py", line 7, in ?
I = input( "> " )
File "<string>", line 0

^
SyntaxError: unexpected EOF while parsing

Code:


start  =  ["Starting Python..", "Python started!", "Python ended!"]


print "What would you like to do?\n1: Start program\n2: End program\n"

I = input( "> " )

if I == 1:
  print "\n",start[0],"\n",start[1],"\n",
  
elif I == 2:
  print "\n",start[2],"\n" 
  
else:
  print "Hey enter the damn number man!"

November 1st, 2003, 07:06 PM

netytan

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Hi xlordt, Firstly welcome to the Python board. Always nice to see a new face!

Anyway what your looking for here is the raw_input(prompt) function.. input(prompt) not only takes user input but evaluates it as a Python expression i.e. the following Python shell example..

>>> input('Enter an Expression to be evaulated: ')
Enter an Expression to be evaulated:
1 + 1
2
>>> raw_input('Enter an Expression to be evaulated: ')
Enter an Expression to be evaulated:
1 + 1
'1 + 1'
>>>

Hope this helps,
Mark.

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November 2nd, 2003, 12:10 AM

xlordt

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yes thanx.. the raw_input worked for me.. but what is the diffrence? =)

November 2nd, 2003, 02:04 AM

percivall

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As Netytan said, the difference is that, while raw_input() stores a string, input() not only stores the string, but also evaluates it.

If I would enter "1+1" when prompted by raw_input(), the result would be "1+1". If I entered the same string when prompted by input(), it would store 2 (note the lack of quotes).

Last edited by percivall : November 2nd, 2003 at 02:11 AM.

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