python: how to delete blank lines?

Question

The input is designed to contain multiple lines of answer from the user, all the white spaces at the start need to be deleted, I have down that by using line.strip(). However, I cannot figure out a way to delete the input blank lines between each line of the answer.

print("after press enter and add a quit at end of your code")
print("copy and paste your code here")
text = ""
stop_word = "end"
while True:
    line = input()
    if line.strip() == stop_word:
        break
    text += "%s\n" % line.strip()
print(text)

can you give an example input, output ? – SM Abu Taher Asif Jul 18 '19 at 03:54 — SM Abu Taher Asif, Jul 18 '19 at 03:54
@Asif my problem is solved, thank you anyway – Weilory Jul 18 '19 at 03:59 — Weilory, Jul 18 '19 at 03:59

Calder White · Accepted Answer · 2019-07-18T03:57:11.357

You can detect a blank line in your code by checking the value of the line.

if line == "":
    # start the next iteration without finishing this one
    continue

The following code discards a line if it is empty:

print("after press enter and add a quit at end of your code")
print("copy and paste your code here")
text = ""
stop_word = "end"
while True:
    line = input()
    if line == "":
        continue

    if line.strip() == stop_word:
        break
    text += "%s\n" % line.strip()
print(text)

python: how to delete blank lines?

1 Answers1