Ignore \n character when iterate over a list in python

Question

I have a list like that


mylist
['\nms-0/0/0\n', '\nms-0/1/0\n', '\nms-0/2/0\n']

and I want to use every literal value of the list in a way that \n character is ignored:

Example:


for i in mylist:
     flows.xpath("//service-sfw-flow-count[interface-name=i]/flow-count//text()")

the value of "i" is not \nms-0/0/0\n but ms-0/0/0 , so I wonder if there is an option to use the literal value of every element of the list.

I've tried repr(i), but I got extra characters

"'\\nms-0/0/0\\n'"

Any idea ?

Regards

I want the value of i in the loop is \nms-0/0/0\n , I don't want to remove \n — psagrera, May 23 '22 at 12:03
replace does not modify original string. Use `i.replace` wherever you don't want `\n`s and just `i` where you do want them. — matszwecja, May 23 '22 at 12:05
if `\n` is either at the start or end of the string you could use `str.strip('\n')` — cards, May 23 '22 at 13:22

Luis · Answer 1 · 2022-05-23T12:18:24.743

0

Perhaps you can use

i.replace('\n', '')

to replace that characters with an empty string.

For example.

for i in mylist:
     new_i = i.replace('\n', '')
     flows.xpath("//service-sfw-flow-count[interface-name=i]/flow-count//text()")

On the other hand, if the i deflows.xpath is your variable, it may be advisable to make the following modification.

for i in mylist:
     new_i = i.replace('\n', '')
     flows.xpath(f"//service-sfw-flow-count[interface-name={new_i}]/flow-count//text()")

edited May 23 '22 at 12:18

answered May 23 '22 at 12:00

Luis

Now you can use new_i or i depending on whether or not you want to use /n – Luis May 23 '22 at 12:19
Thanks for your reply, I found the problem , it was an issue with the xpath expression. – psagrera May 24 '22 at 11:41

Maexchen · Answer 2 · 2022-05-23T12:10:04.400

-1

try this:

mylist = [r'\nms-0/0/0\n', r'\nms-0/1/0\n', r'\nms-0/2/0\n']
print(mylist)

edited May 23 '22 at 12:10

answered May 23 '22 at 12:06

Maexchen

Your answer could be improved with additional supporting information. Please [edit] to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers [in the help center](/help/how-to-answer). – Community May 23 '22 at 13:34

score -1 · Accepted Answer · answered May 24 '22 at 11:40

-1

It was an issue with the xpath expression

new.xpath("//service-sfw-flow-count[interface-name='" + i + "']/flow-count//text()")

answered May 24 '22 at 11:40

psagrera

3 Answers3