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As someone who teaches a lot of beginner programming content, I occasionally stumble upon questions like “how do you print on the same line in Python?” Luckily, I have an answer to that!
In short, there are two main ways to print on the same line in Python. For Python 2, use the following print syntax:
print "Williamson",. For Python 3, use the following print syntax:
print("Providence", end=""). Otherwise, check out the remainder of the article for a backwards compatible solution.
Table of Contents
In many programming languages, printing on the same line is typically the default behavior. For instance, Java has two command line print functions:
As you can probably imagine, the default
println function is going to behave much like the
Of course, if the
In order to print on the same line in Python, there are a few solutions. Unfortunately, not all of the solutions work in all versions of Python, so I’ve provided three solutions: one for Python 2, another for Python 3, and a final solution which works for both.
Print on the Same Line The Old Way
When I was searching for solutions to this problem, I found a lot of material on Python 2 which is quickly phasing out (I hope). That said, I felt this solution would be helpful to anyone still rocking it.
At any rate, when you print something in Python 2, the syntax is the same as Python 3, but you leave out the parentheses:
print "Live PD"
Of course, in both cases, the default behavior is to print with a newline. As a result, we’ll need to add a clever bit of syntax—a comma:
print "Live PD",
Now, the print function should exclude the newline. However, this solution will add an extra space to the end of the string. Also, you may notice that this solution does not print immediately. If that happens, you can make a call to
Print on the Same Line with the Write Function
Fortunately, we can bridge the gap between Python 2 and 3 using a function out of the
write. This functions works just like the
import sys sys.stdout.write("Breaking Bad")
Again, since there is no newline, you may need to flush the buffer to see any results:
import sys sys.stdout.write("Breaking Bad") sys.stdout.flush()
In either case, this solution will get the job done in both versions of Python.
Print on the Same Line the New Way
In Python 3,
end which defaults to some newline character. You can easily change it as follows:
print("Mob Psycho 100", end="")
And, that’s it! Instead of the string ending in a newline, it will end in an empty string. Of course, this solution comes with the same caveat as the other previous two solutions: you may need to flush the buffer.
As always, I like to take a look at all the solutions from the point of view of performance. To start, I usually store each solution in a string. To avoid excessive printing during the test, I’ve chosen to write empty strings:
setup=""" import sys """ write_solution = """ sys.stdout.write("") """ print_solution = """ print("", end="") """
Unfortunately, I was unable to test the Python 2 solution on my system, so feel free to share your results in the comments. At any rate, I like to use the
timeit library for a quick and dirty performance test:
>>> import timeit >>> min(timeit.repeat(stmt=write_solution, setup=setup, repeat=10)) 0.20978069999999605 >>> min(timeit.repeat(stmt=print_solution, setup=setup, repeat=10)) 0.5292953999999952
write route. Otherwise,
A Little Recap
Well, that’s it for this one. Check out the code block below for a list of all the solutions:
# Python 2 only print "Live PD", # Backwards compatible (also fastest) import sys sys.stdout.write("Breaking Bad") # Python 3 only print("Mob Psycho 100", end="")
As always, if you know any other ways to print on the same line in Python, let us know in the comments. In the meantime, why not grow your Python knowledge with the following articles:
While you’re here, why not take advantage of some these Python books:
- Python Programming: A Smart Approach For Absolute Beginners (A Step-by-Step Guide With 8 Days Crash Course) by Steve Manson
- Python Programming: A Smarter And Faster Way To Learn Python In 7 Days: With Practical Exercises, Interview Questions, Tips And Tricks by Chris Harvard
Otherwise, I appreciate the support. Thanks for stopping by!