How To Print Without A Newline In Python

In this Python tutorial, we will discuss how to print without a newline in Python. Also we will different ways to print without newline in loop in Python.

When learning Python, one of the first things you learn is how to use the print() function to output data to the console. By default, the print() function appends a newline character at the end of the output. However, there might be situations where you want to print without a newline, let us see different ways to print in the same line in Python.

Table of Contents

The print() function in Python

The print() function in Python is used to output data to the console. By default, it appends a newline character (‘\n’) at the end of the output, which causes the next printed output to appear on a new line. Here’s an example:

print("Hello, World!")
print("Welcome to Python.")

Output:

Hello, World!
Welcome to Python.

Print Without a Newline in Python using the ‘end’ parameter

You can use the ‘end’ parameter within the Python print() function to change the default behavior of appending a newline character at the end of the output. The ‘end’ parameter allows you to specify a different string to be appended at the end of the output.

Example:

print("Hello, World!", end="")
print("Welcome to Python.")

Output:

Hello, World!Welcome to Python.

Python print without newline using the ‘sep’ parameter

The ‘sep’ parameter can be used to print multiple arguments without a newline in between in Python. By default, the ‘sep’ parameter has a space character (‘ ‘) as its value. You can change this value to an empty string to remove the space between printed arguments.

Example:

print("Hello, World!", "Welcome to Python.", sep="")

Output:

Hello, World!Welcome to Python.

Python print without newline using the sys.stdout.write() method

Another way to print without a newline in Python is by using the write() method of the sys.stdout object. This method writes a string to the console without appending a newline character.

Example:

import sys

sys.stdout.write("Hello, World!")
sys.stdout.write("Welcome to Python.")

Output:

Hello, World!Welcome to Python.

Python print without newline in loop

Now, let us see a few ways to print without a newline in a loop in Python.

In Python, when printing inside a loop, the default behavior is to append a newline character at the end of each printed output. However, there might be situations where you want to print without a newline while iterating through a loop. Here, we will discuss how to print without a newline in a loop using various methods.

Using the ‘end’ parameter in a loop

The ‘end’ parameter within the print() function can be used to change the default behavior of appending a newline character at the end of the output. When printing inside a loop, you can use the ‘end’ parameter to control the output format.

Example-1: Print numbers from 1 to 5 in a single line

for i in range(1, 6):
    print(i, end=" ")

Output:

1 2 3 4 5

Example 2: Print a list of names separated by a comma

names = ["Alice", "Bob", "Charlie", "David"]

for name in names[:-1]:
    print(name, end=", ")
print(names[-1])

Alice, Bob, Charlie, David

Using the ‘sep’ parameter in a loop

The ‘sep’ parameter in the print() function allows you to control the separator between multiple arguments. When printing inside a loop, you can use the ‘sep’ parameter to achieve the desired output format.

Example: Print elements of a list separated by a comma

names = ["Alice", "Bob", "Charlie", "David"]

print(*names, sep=", ")

Output:

Alice, Bob, Charlie, David

Using sys.stdout.write() in a loop

Another way to print without a newline in a loop is by using the write() method of the sys.stdout object. This method writes a string to the console without appending a newline character.

Example: Print numbers from 1 to 5 in a single line

import sys

for i in range(1, 6):
    sys.stdout.write(str(i) + " ")

Output:

1 2 3 4 5

We have learned different methods to print without a newline in a loop in Python. We covered how to use the ‘end’ and ‘sep’ parameters of the print() function, as well as the sys.stdout.write() method.

Conclusion

We have also learned different methods to print without a newline in Python. We covered how to use the ‘end’ and ‘sep’ parameters of the print() function, as well as the sys.stdout.write() method.