How do you accept multiple line inputs in python?

I want to write a program that gets multiple line input and work with it line by line. Why isn't there any function like raw_input in Python 3?

input does not allow the user to put lines separated by newline (Enter). It prints back only the first line.

Can it be stored in a variable or even read it to a list?

How do you accept multiple line inputs in python?

asked May 14, 2015 at 13:49

7

raw_input can correctly handle the EOF, so we can write a loop, read till we have received an EOF (Ctrl-D) from user:

Python 3

print("Enter/Paste your content. Ctrl-D or Ctrl-Z ( windows ) to save it.")
contents = []
while True:
    try:
        line = input()
    except EOFError:
        break
    contents.append(line)

Python 2

print "Enter/Paste your content. Ctrl-D or Ctrl-Z ( windows ) to save it."
contents = []
while True:
    try:
        line = raw_input("")
    except EOFError:
        break
    contents.append(line)

answered Jul 6, 2016 at 11:47

xiaketxiaket

1,66313 silver badges8 bronze badges

4

In Python 3.x the raw_input() of Python 2.x has been replaced by input() function. However in both the cases you cannot input multi-line strings, for that purpose you would need to get input from the user line by line and then .join() them using \n, or you can also take various lines and concatenate them using + operator separated by \n

To get multi-line input from the user you can go like:

no_of_lines = 5
lines = ""
for i in xrange(no_of_lines):
    lines+=input()+"\n"

print(lines)

Or

lines = []
while True:
    line = input()
    if line:
        lines.append(line)
    else:
        break
text = '\n'.join(lines)

How do you accept multiple line inputs in python?

AMGMNPLK

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answered May 14, 2015 at 13:51

ZdaRZdaR

21.3k6 gold badges61 silver badges83 bronze badges

3

input(prompt) is basically equivalent to

def input(prompt):
    print(prompt, end='', file=sys.stderr, flush=True)
    return sys.stdin.readline()

You can read directly from sys.stdin if you like.

lines = sys.stdin.readlines()

lines = [line for line in sys.stdin]

five_lines = list(itertools.islice(sys.stdin, 5))
    

The first two require that the input end somehow, either by reaching the end of a file or by the user typing Control-D (or Control-Z in Windows) to signal the end. The last one will return after five lines have been read, whether from a file or from the terminal/keyboard.

answered May 14, 2015 at 14:45

chepnerchepner

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9

Use the input() built-in function to get a input line from the user.

You can read the help here.

You can use the following code to get several line at once (finishing by an empty one):

while input() != '':
    do_thing

answered May 14, 2015 at 13:52

maggickmaggick

1,30413 silver badges23 bronze badges

1

no_of_lines = 5
lines = ""
for i in xrange(5):
    lines+=input()+"\n"
    a=raw_input("if u want to continue (Y/n)")
    ""
    if(a=='y'):
        continue
    else:
        break
    print lines

answered Jul 5, 2016 at 5:10

1

How do you accept multiple string inputs in Python?

How can I take multiple inputs in my program?.
Using split(): The split() function is widely used to take multiple inputs In Python from the user. ... .
string.split(separator, maxsplit) ... .
Using map(): The map() is another way of taking inputs from the user. ... .
map(func, ite).

How do you accept number of inputs in Python?

As we know that Python's built-in input() function always returns a str(string) class object. So for taking integer input we have to type cast those inputs into integers by using Python built-in int() function.

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