python string concatenation split over two lines

Question

for don in open('list.txt', 'r'): myURL=don myURL=myURL.replace("rep.php","") print(myURL+"test.php")

It's printing

http://www.blabla.com blablabla.html

Hi and welcome to SO. Your example is not really complete as you print(url) but we don't see where that variable url is defined. — JonSG
– JonSG, Commented Feb 12, 2022 at 15:22
Please include the input data. There is no way that script produces the output shown. We should see "test.php" in there either as a separate line or as the end of the last line. — tdelaney
– tdelaney, Commented Feb 12, 2022 at 16:00
Sometimes printing data helps. If you add print("DEBUG", repr(myURL), repr(myURL.replace("rep.php","")) you'll see the problem. — tdelaney
– tdelaney, Commented Feb 12, 2022 at 16:14

Daniel Walker · Accepted Answer · 2022-02-12 15:33:07Z

When you iterate over a file handle, you get one line at a time with any trailing newline characters. So, the line is probably 'http://www.blabla.com\n'. That's why, when you append 'blabla.html', the result is split over two lines.

An easy fix is to do

print(myURL.rstrip() + 'blabla.html')

On a side note, it's good practice to manage resources like file handles with context blocks so that the file handle is explicitly closed (and not left to the garbage collector):

with open('list.txt', 'r') as f: for don in f: ...

Collectives™ on Stack Overflow

python string concatenation split over two lines

1 Answer 1

Comments

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Related