How to replicate the effect of 'end=''' in the print function into a variable

Question

I have some code that turns a list of intergers into the characters they represent in ascii This all works fine but it prints every character in a new line. I fixed this by adding 'end=''' to the print statement. However, I want this output (a one line string) inside a variable so I can do different things with it. How do I do this?

This is the code with the working print statement:

a = [116, 101, 115, 116, 115, 116, 114, 105, 110, 103]

for x in range(len(a)):
    data = (chr(a[x]))
    print(data, end='')

I already tried things like rsplit and join but nothing gives the correct outcome.

Thank you for any help you can give me.

Austin · Accepted Answer · 2020-04-19 12:13:25Z

3

This is possible with a join and list comprehension:

data = ''.join([chr(a[x]) for x in range(len(a))])

Note that you definitely did not want to iterate over the indices but the elements themselves, so a better approach would come from a foreach loop:

data = ''.join([chr(x) for x in a])

A functional approach seems not bad too:

data = ''.join(map(chr, a))

Post that you simply have to:

print(data)

answered Apr 19, 2020 at 12:13

Austin

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3 Comments

wwii Over a year ago

Or even join with a generator expression - data = ''.join(chr(x) for x in a).

Austin Over a year ago

@wwii, that is not as efficient as list comp.

wwii Over a year ago

.. 5% slower for 100 million ... If time efficiency is the goal you should point out that map is the fastest.

Saragada Ramesh · Accepted Answer · 2020-04-19 12:32:12Z

0

Try this :

import sys

a = [116, 101, 115, 116, 115, 116, 114, 105, 110, 103]

for x in range(len(a)):
    data = (chr(a[x]))
    sys.stdout.write(data)

Output :

teststring

answered Apr 19, 2020 at 12:32

Saragada Ramesh

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Comments

Banana · Accepted Answer · 2020-04-20 06:40:40Z

0

a = [116, 101, 115, 116, 115, 116, 114, 105, 110, 103]

# empty string
result = ""
# loops trough the list
for x in a:
    # the converted character is added to the string
    result + = chr(x)

edited Apr 20, 2020 at 6:40

answered Apr 19, 2020 at 12:12

Banana

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1 Comment

Boken Over a year ago

While this code may solve the question, including an explanation of how and why this solves the problem would really help to improve the quality of your post, and probably result in more up-votes. Remember that you are answering the question for readers in the future, not just the person asking now. Please edit your answer to ADD EXPLANATION and give an indication of what limitations and assumptions apply.

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