How to fix the print statement so that it is in one line instead of two?

Question

I am trying to figure out why my print statement is breaking into two seperate lines rather then just printing in one line. I wrote a for loop that bascially takes in a file with Websites like this

example0.com
example1.com
example2.com
example3.com
example4.com

and starts from the 2nd line and iterates through the file.

with open('examplefile') as second_start:
    next(second_start) 
    for line in second_start:
        print('"hostNames": [{"name":' + ' "' + str(line) + '",' + '" source": "DNS"}],')

The output of this is

"hostNames": [{"name": "example1.com
"," source": "DNS"}],
"hostNames": [{"name": "example2.com
"," source": "DNS"}],
"hostNames": [{"name": "example3.com
"," source": "DNS"}],
"hostNames": [{"name": "example4.com
"," source": "DNS"}],

The output I would like is if the print statment just printed it on one line like this

"hostNames": [{"name": "example1.com"," source": "DNS"}],
"hostNames": [{"name": "example2.com"," source": "DNS"}],
"hostNames": [{"name": "example3.com"," source": "DNS"}],
"hostNames": [{"name": "example4.com"," source": "DNS"}],

Any help is greatly appreciated.

Answer 1

Change

print('"hostNames": [{"name":' + ' "' + str(line) + '",' + '" source": "DNS"}],')

to

print('"hostNames": [{"name":' + ' "' + str(line).strip() + '",' + '" source": "DNS"}],')

The strip() will remove and leading or trailing spaces, \r , or \n . That being said I would recommend writing your print a little cleaner using f-strings. You need to double up any brackets to escape them though.

print(f'"hostNames": [{{"name": "{str(line).strip()}", " source": "DNS"}}],')

You can also just do .rstrip('\n') if you only want to remove the new line at the end.

Answer 2

Well, you can remove newline character from str(line) by using str(line).rstrip("\n") I know that you can use just .rstrip() but specifying "\n" will ensure that you're removing only newline character keeping other special characters untouched.

Answer 3

You can use the readlines() method, that returns a list containing each line in the file as a list item.

after that you can iterate through this list to get the values you need

with open('examplefile', 'r') as second_start:
     lines_list = second_start.readlines()
     for line in lines_list:
        print('"hostNames": [{"name":' + ' "' + line + '",' + '" source": "DNS"}],')

Answer 4

Your file is that:

example0.com
example1.com
example2.com
example3.com
example4.com

And it is equal to that:

example0.com\nexample1.com\nexample2.com\nexample3.com\nexample4.com

The \n character is a new line character. Look at that:

>>> print("Hello\nWorld")
Hello
World

So you should delete \n characters from your strings. You can do it by using str.rstrip("\n")

>>> s = "abc\n"
>>> s.rstrip("\n")
"abc"