Print in One Line Dynamically

Print in one line dynamically

Change print item to:

• print item, in Python 2.7
• print(item, end=" ") in Python 3

If you want to print the data dynamically use following syntax:

• print(item, sep=' ', end='', flush=True) in Python 3

Print dynamically in just one line

Use the end parameter of the print function, specifically in your example:

while i < count:
    print(c, end=", ")
    ...

To prevent the trailing comma after the last print:

while i < count:
    print(c, end=("" if i == count - 1 else ", "))
    ...

Print new output on same line

From help(print):

Help on built-in function print in module builtins:

print(...)
    print(value, ..., sep=' ', end='\n', file=sys.stdout)

    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.

You can use the end keyword:

>>> for i in range(1, 11):
...     print(i, end='')
... 
12345678910>>> 

Note that you'll have to print() the final newline yourself. BTW, you won't get "12345678910" in Python 2 with the trailing comma, you'll get 1 2 3 4 5 6 7 8 9 10 instead.

Print in one line after removing previous in Python

Is this what you're looking for?

You can use sys.stdout.write('\b \b') to delete a character already printed to the console. (Note: won't work in IDLE)

A list of these "special characters" (known as string literals) can be found here

Printing a line dynamically in python 3

import time
print('Loading', end='.')
for i in range(0,10):
    print('', end=".")
    time.sleep(0.5)

see explanation of end syntax and working example.

How to append a variable and print it in place of the same line before it was?

You can do this by specifying the end argument in print() as '\r' or Carriage Return as it is known.

For instance:

for i in range(100):
    # Your check goes here
    print('[{}/100] have been checked.'.format(i), end='\r')

For the change to be noticeable you could use time.sleep() for a small interval like 0.5 secs. Something like this:

import time
for i in range(100):
    # Your check goes here
    print('[{}/100] have been checked.'.format(i), end='\r')
    time.sleep(0.5)

How do I make my Print Statement print on only one line?

You can pass end='' to the print statement so that subsequent prints are not separated by a newline, which is the default behavior. Also, here it makes sense to use a range iterator with for instead of while.

Note: I've taken the liberty to cut the sleep time in half, so it's easier to test it out.

import random
import time

All = "abcdefghijklmnopqrstuvwxyz1234567890"

for _ in range(6):
    time.sleep(0.5)
    print(All[random.randint(1, 35)], end='')

Print a changing variable in a for loop using one line in the ipython console

If you use sys.stdout you should be able to do it

# To see how far we're in the progress
string = '-'
for i in range(x): 
    sys.stdout.write('\r' + '(' + string + ' '*(max_len - len(string)  + ')')
    sys.stdout.flush()
    string += '-'

It's important to have the '\r' character

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