Why do I receive a syntax error when printing a string in Python 3?

>>> print "hello World"
  File "<stdin>", line 1
    print "hello World"
SyntaxError: invalid syntax
15 upvote
hint: for compatibility code in python 2.7+ put this into the beginning of the module: from __future__ import print_function – Yauhen Yakimovich
...import print_function doesn't seem to work, do you need to change something in the print statements? or should the import do it? – RMiranda
5 upvote
For the record, this case will be getting a custom error message in Python 3.4.2: //allinonescript.com/questions/25445439/… – ncoghlan
Closing this as a dupe of the other post by @ncoghlan, because 1. It has a more comprehensive answer 2. It is updated to match the latest error. – Bhargav Rao

10 Answers 11

up vote 311 down vote accepted

In Python 3, print became a function. This means that you need to include parenthesis now like mentioned below:

print("Hello World")

It looks like you're using Python 3.0, in which print has turned into a callable function rather than a statement.

print('Hello world!')

In Python 3.0, print is a regular function that requires ():

print("Hello world")

It looks like you're using Python 3. In Python 3, print has been changed to a method instead of a statement. Try this:

print("hello World")

In Python 3, it's print("something") , not print "something".

Because in Python 3, print statement has been replaced with a print() function, with keyword arguments to replace most of the special syntax of the old print statement. So you have to write it as

print("Hello World")

But if you write this in a programme and some one using Python 2.x tries to run, they will get an error. To avoid this, it is a good practice to import print function

from __future__ import print_function

Now you code works on both 2.x & 3.x

Check out below examples also to get familiar with print() function.

Old: print "The answer is", 2*2
New: print("The answer is", 2*2)

Old: print x,           # Trailing comma suppresses newline
New: print(x, end=" ")  # Appends a space instead of a newline

Old: print              # Prints a newline
New: print()            # You must call the function!

Old: print >>sys.stderr, "fatal error"
New: print("fatal error", file=sys.stderr)

Old: print (x, y)       # prints repr((x, y))
New: print((x, y))      # Not the same as print(x, y)!

Source: What’s New In Python 3.0?

In Python 2.X print is a keyword, while in Python 3.X print becomes a function, so the correct way to do it is print(something).

You can get the list of keywords for each version by executing the following:

>>> import keyword
>>> keyword.kwlist

You have to use bracket with print print("Hello World")

2to3 is a Python program that reads Python 2.x source code and applies a series of fixers to transform it into valid Python 3.x code

Further informations can be found here:

Python Documentation: Automated Python 2 to 3 code translation

In Python 3, you must do print('some code'). This is because in Python 3 it has become a function. If you must, you can use your Python 2 code and convert it to Python 3 code using 2to3 - it is a great built-in program which comes with Python. For more, see Python 2to3 - Convert your Python 2 to Python 3 automatically!.

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