Python convert multi line into single line formatted string

[karthidec]

Hi, Pls help me on the below issue. I have tried a lot, but not getting correct format.

I have a python flask application where I am getting inputs from a User and POST to JIRA application to create ticket.

One of my field is description and it is a multi-line field.

Expected Input: [in description field, which is multi-line]
testinput1
testinput2
testinput3

Expected output format: [Need in this format for JIRA post rest api process]
\\ntestinput1\\ntestinput1\\ntestinput1\\n

I tried so far,

b=request.form['description'] # I gave multi-line inputs in this field thru front end UI screen
a='''{b}'''.format(b=b)
print(a)
out=a.replace("\n", "\\n")
print(out)