Python Programming Tutorials

Loops and print

Hey fellow programmers, I have a question about how to print output on the same line in a for loop in Python. Here is the code


import time
y = "This is a string and it is useful in Python."
def nice_print(y):
	for x in range(len(y)):
		time.sleep(0.5)
		print(y[x])

nice_print(y)

This is the result.


T
h
i
s
 
i
s
 
a
 
s
t
r
i
n
g
 
a
n
d
 
i
t
 
i
s
 
u
s
e
f
u
l
 
i
n
 
P
y
t
h
o
n
.
[Finished in 23.0s]

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From:
https://stackoverflow.com/questions/493386/how-to-print-without-newline-or-space

Note the change in the print function. (It's actually two single quotes with no space between them.) Python automatically adds a newline character and you can override it with anything.


import time
y = "This is a string and it is useful in Python."
def nice_print(y):
	for x in range(len(y)):
		time.sleep(0.5)
		print(y[x], end='')

nice_print(y)

-jdonnelly81 6 years ago

Last edited 6 years ago

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Not tryna be needy here. But I kinda want the typing effect that the loop shows, Because when I add the tab escape character, It instantly prints everything without showing the pauses between characters.

-PyLORD 6 years ago

Last edited 6 years ago

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A built-in file object that is analogous to the interpreter's standard output stream in Python . Unlike print, sys.stdout.write() doesn't switch to a new line after one text is displayed. To achieve this one can employ a new line escape character(n) .

import sys
for item in ['a','b','c','d']:
sys.stdout.write(item)

While using stdout , you need to convert the object to a string yourself (by calling "str", for example) and there is no newline character . The return value for sys.stdout.write() returns the no. of bytes written which also gets printed on the interactive interpret prompt for any expressions enter.

http://net-informations.com/python/pro/print.htm

-jefryarch 3 years ago

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