How to print without newline or space?
In Python 3, you can use the sep=
and end=
parameters of the print
function:
To not add a newline to the end of the string:
print('.', end='')
To not add a space between all the function arguments you want to print:
print('a', 'b', 'c', sep='')
You can pass any string to either parameter, and you can use both parameters at the same time.
If you are having trouble with buffering, you can flush the output by adding flush=True
keyword argument:
print('.', end='', flush=True)
Python 2.6 and 2.7
From Python 2.6 you can either import the print
function from Python 3 using the __future__
module:
from __future__ import print_function
which allows you to use the Python 3 solution above.
However, note that the flush
keyword is not available in the version of the print
function imported from __future__
in Python 2; it only works in Python 3, more specifically 3.3 and later. In earlier versions you'll still need to flush manually with a call to sys.stdout.flush()
. You'll also have to rewrite all other print statements in the file where you do this import.
Or you can use sys.stdout.write()
import sys
sys.stdout.write('.')
You may also need to call
sys.stdout.flush()
to ensure stdout
is flushed immediately.
It should be as simple as described at this link by Guido Van Rossum:
Re: How does one print without a c/r ?
http://legacy.python.org/search/hypermail/python-1992/0115.html
Is it possible to print something but not automatically have a carriage return appended to it ?
Yes, append a comma after the last argument to print. For instance, this loop prints the numbers 0..9 on a line separated by spaces. Note the parameterless "print" that adds the final newline:
>>> for i in range(10):
... print i,
... else:
... print
...
0 1 2 3 4 5 6 7 8 9
>>>
Note: The title of this question used to be something like "How to printf in python?"
Since people may come here looking for it based on the title, Python also supports printf-style substitution:
>>> strings = [ "one", "two", "three" ]
>>>
>>> for i in xrange(3):
... print "Item %d: %s" % (i, strings[i])
...
Item 0: one
Item 1: two
Item 2: three
And, you can handily multiply string values:
>>> print "." * 10
..........