Output without new line [duplicate] - python

This question already has answers here:
How to print without a newline or space
(26 answers)
Closed last month.
how can I output text to the console without new line at the end?
for example:
print 'temp1'
print 'temp2'
output:
temp1
temp2
And I need:
temp1temp2

Add a comma after the last argument:
print 'temp1',
print 'temp2'
Alternatively, Call sys.stdout.write:
import sys
sys.stdout.write("Some output")

In Python > 2.6 and Python 3:
from __future__ import print_function
print('temp1', end='')
print('temp2', end='')

Try this:
print 'temp1',
print 'temp2'

There are multiple ways, but the usual choice is to use sys.stdout.write(), which -- unlike print -- prints exactly what you want. In Python 3.x (or in Python 2.6 with from __future__ import print_function) you can also use print(s, end='', sep=''), but at that point sys.stdout.write() is probably easier.
Another way would be to build a single string and print that:
>>> print "%s%s" % ('temp1', 'temp2')
But that obviously requires you to wait with writing until you know both strings, which is not always desirable, and it means having the entire string in memory (which, for big strings, may be an issue.)

for i in range(4):
print(a[i], end =" ")

Try
print 'temp1',
print '\btemp2'

Related

Typing effect Python [duplicate]

I am writing a program in Python and want to replace the last character printed in the terminal with another character.
Pseudo code is:
print "Ofen",
print "\b", # NOT NECCESARILY \b, BUT the wanted print statement that will erase the last character printed
print "r"
I'm using Windows8 OS, Python 2.7, and the regular interpreter.
All of the options I saw so far didn't work for me. (such as: \010, '\033[#D' (# is 1), '\r').
These options were suggested in other Stack Overflow questions or other resources and don't seem to work for me.
EDIT: also using sys.stdout.write doesn't change the affect. It just doesn't erase the last printed character. Instead, when using sys.stdout.write, my output is:
Ofenr # with a square before 'r'
My questions:
Why don't these options work?
How do I achieve the desired output?
Is this related to Windows OS or Python 2.7?
When I find how to do it, is it possible to erase manually (using the wanted eraser), delete the '\n' that is printed in python's print statement?
When using print in python a line feed (aka '\n') is added. You should use sys.stdout.write() instead.
import sys
sys.stdout.write("Ofen")
sys.stdout.write("\b")
sys.stdout.write("r")
sys.stdout.flush()
Output: Ofer
You can also import the print function from Python 3. The optional end argument can be any string that will be added. In your case it is just an empty string.
from __future__ import print_function # Only needed in Python 2.X
print("Ofen",end="")
print("\b",end="") # NOT NECCESARILY \b, BUT the wanted print statement that will erase the last character printed
print("r")
Output
Ofer
I think string stripping would help you. Save the input and just print the string upto the length of string -1 .
Instance
x = "Ofen"
print (x[:-1] + "r")
would give you the result
Ofer
Hope this helps. :)

Print output not showing the correct format

I have written the python code as below:
magicNumber = 25
for n in range(100):
if n is magicNumber:
print(n, " is the magic number")
break
else:
print(n)
The last line of output is showing in the format as below:
(25, ' is the magic number')
Please let me know what can i do to have the last line of the output as:
25 is the magic number
There's many ways you can accomplish this, since you're using python 2, there isn't a default print function. So you will have to import it, one way will be to add this on the top of your code.
from __future__ import print_function
Other ways include using string formatting such as:
print "%s is the magic number" % n
And
print "{0} is the magic number".format(n)
Or you can just easily remove the brackets and it will all be the same.
print n, "is the magic number"
You're running the code in python 2. That explains the braces being printed. Run in python 3 it'll work as you expect. Or if you still prefer python 2,then just remove the braces and put
print n,' is the magicnumber'
for python 2.x - print acts as a command
just remove the brackets and it will work as expected.
print n, " is the magic number"
for python 3.x - print acts as a function; so below is fine.
print(n, " is the magic number")
There are some other methods also as suggested by the user abccd.

Python printing issue with space

Hello I am currently working on something and I am trying to print output as such in python
hello=10
but my code below is printing it as such
hello= 10
10 is an int i have tried these codes but none work
print "hello=",10
print "hello=",str(10)
print "hello=",str(10).strip()
i would appreciate the help thank you
Simply concatenate the strings:
print "hello="+str(10)
Use str.format,
print("hello={}".format(10))
PS: The print statement has been replaced with a print() function since Python 3.0.
Old: print x, # Trailing comma suppresses newline
New: print(x, end=" ") # Appends a space instead of a newline
Refer to Print Is A Function for the detailed descriptions.
If you use print with multiple arguments, separated by ,, a single space ' ' is inserted as a separator in between each of those.
When using Python 3's print function, you can specify the sep parameter; default is ' '.
>>> from __future__ import print_function # when in Python 2
>>> print("hello=", 10)
hello= 10
>>> print("hello=", 10, sep="")
hello=10
>>> print("hello=", 10, sep="###")
hello=###10
For Python 2's print statement, there is to the best of my knowledge no such option.
You may also consider using the Python 3 compatible print() function:
This function can be used after a __future__ directive:
from __future__ import print_function
print("hello=", 10, sep='')
Output:
hello=10
The print() function as a sep keyword argument which allows you to replace the space separator by an empty string.
Here is the online help:
Help on built-in function print in module builtins:
print(...)
print(value, ..., sep=' ', end='\n', file=sys.stdout, flush=False)
Prints the values to a stream, or to sys.stdout by default.
Optional keyword arguments:
file: a file-like object (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.
flush: whether to forcibly flush the stream.
The call "print" will place a space for a comma.
Yes, Python provides many ways to print the strings as above mentioned, I still would like to construct the output with C or Java style format:
print "hello=%d" % 10

How to print strings in a for loop without space in one line

I am wondering how can I print some strings in a for loop in one line without space between each other.
I know concatenating strings without space in one line, but outside of a for loop:
>>> print('hi'+'hi'+'hi')
hihihi
However, I have no idea how to do that in a for loop.
s = ""
for i in range(3):
s += 'Hi'
print(s)
You can achieve that by skipping print and calling directly stdout:
import sys
for i in range(3):
sys.stdout.write("Hi")
sys.stdout.write("\n")
Output result is HiHiHi. See also this question for a lengthy discussion of the differences between print and stdout.
You can use the print function from Python 3 and specify an end string like this:
# this import is only necessary if you are using Python 2
from __future__ import print_function
for i in range(3):
print('hi', end='')
print()
Alternatively, sys.stdout.write does not add a newline character by default.

Python: avoid new line with print command [duplicate]

This question already has answers here:
How to print without a newline or space
(26 answers)
Closed 9 years ago.
When I use the print command, it prints whatever I want and then goes to a different line. For example:
print "this should be"; print "on the same line"
Should return:
this should be on the same line
but instead returns:
this should be
on the same line
More precisely I was trying to create a program with if that told me whether a number was a 2 or not
def test2(x):
if x == 2:
print "Yeah bro, that's tottaly a two"
else:
print "Nope, that is not a two. That is a (x)"
But it doesn't recognise the last (x) as the value entered, and rather prints exactly: "(x)" (the letter with the brackets). To make it work I have to write:
print "Nope, that is not a two. That is a"; print (x)
And if e.g. I enter test2(3) that gives:
Nope, that is not a two, that is a
3
So either I need to make Python recognise my (x) inside a print line as the number; or to print two separate things but on the same line.
IMPORTANT NOTE: I am using version 2.5.4
Another note: If I put print "Thing" , print "Thing2" it says "Syntax error" on the 2nd print.
In Python 3.x, you can use the end argument to the print() function to prevent a newline character from being printed:
print("Nope, that is not a two. That is a", end="")
In Python 2.x, you can use a trailing comma:
print "this should be",
print "on the same line"
You don't need this to simply print a variable, though:
print "Nope, that is not a two. That is a", x
Note that the trailing comma still results in a space being printed at the end of the line, i.e. it's equivalent to using end=" " in Python 3. To suppress the space character as well, you can either use
from __future__ import print_function
to get access to the Python 3 print function or use sys.stdout.write().
In Python 2.x just put a , at the end of your print statement. If you want to avoid the blank space that print puts between items, use sys.stdout.write.
import sys
sys.stdout.write('hi there')
sys.stdout.write('Bob here.')
yields:
hi thereBob here.
Note that there is no newline or blank space between the two strings.
In Python 3.x, with its print() function, you can just say
print('this is a string', end="")
print(' and this is on the same line')
and get:
this is a string and this is on the same line
There is also a parameter called sep that you can set in print with Python 3.x to control how adjoining strings will be separated (or not depending on the value assigned to sep)
E.g.,
Python 2.x
print 'hi', 'there'
gives
hi there
Python 3.x
print('hi', 'there', sep='')
gives
hithere
If you're using Python 2.5, this won't work, but for people using 2.6 or 2.7, try
from __future__ import print_function
print("abcd", end='')
print("efg")
results in
abcdefg
For those using 3.x, this is already built-in.
You simply need to do:
print 'lakjdfljsdf', # trailing comma
However in:
print 'lkajdlfjasd', 'ljkadfljasf'
There is implicit whitespace (ie ' ').
You also have the option of:
import sys
sys.stdout.write('some data here without a new line')
Utilize a trailing comma to prevent a new line from being presented:
print "this should be"; print "on the same line"
Should be:
print "this should be", "on the same line"
In addition, you can just attach the variable being passed to the end of the desired string by:
print "Nope, that is not a two. That is a", x
You can also use:
print "Nope, that is not a two. That is a %d" % x #assuming x is always an int
You can access additional documentation regarding string formatting utilizing the % operator (modulo).

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