Print Syntax Error With Python 3

After installing python 3.1, I cannot print anything. Here is an example: >>> print 'Hello World' File '', line 1 print 'Hello World'

Solution 1:

Try this:

>>> print"Hello World!"
  File "<stdin>", line 1print"Hello World!"
SyntaxError: invalid syntax
>>> print("Hello World!")
Hello World!

Python 3.X changed how print works, and now requires parentheses around the arguments. Check out the python docs for more.

Solution 2:

if something's going wrong, you can always try to call for help:

>>> help(print)
Help on built-infunction print inmodule builtins:

print(...)
    print(value, ..., sep=' ', end='\n', file=sys.stdout)

    Prints the values to a stream, orto sys.stdout bydefault.
    Optional keyword arguments:
    file: a file-likeobject (stream); defaults to the current sys.stdout.
    sep:  string inserted between values, default a space.
    end:  string appended after the last value, default a newline.

and there you might see, tha the syntax of that print thing is print(something)

funny is, that in python 2, you get just an error message:

>>>help(print)
SyntaxError: invalid syntax

it's because in python < 3, print function was not a function, but a keyword (just like e.g. for or or)

Solution 3:

This threw me off too!

print("Hello World")

The changes were documented here: http://docs.python.org/release/3.0.1/whatsnew/3.0.html

Solution 4:

If you are learning Python from a textbook that is telling you to type print "Hello World", I recommend installing the Python version mentioned in the textbook.

Solution 5:

Yeah strange as it may seem i spent an hour trying to figure it out . At first could not believe how dumb i was to not even get the syntax right . This seems a consolation that python has changed .

print ("Hello World") 

seems the way to go from now !