Replace One Line of Multiline String In Python?

Question

I have a multi-line string in python, and I want to replace a specific line number of it. I have a loop that goes through each line and increments the line number by 1, but what do I do when I reach the line I need to replace? Any suggestions?

Can you show some code and data to illustrate your problem?

Tim Biegeleisen
– Tim Biegeleisen

2017-09-12 01:58:31 +00:00
Commented Sep 12, 2017 at 1:58 — Tim Biegeleisen
– Tim Biegeleisen, Commented Sep 12, 2017 at 1:58

Sam51 · Accepted Answer · 2017-09-12 01:59:26Z

5

yourstring = yourstring.split("\n")
yourstring[lineyouwant] = edit
yourstring = "\n".join(yourstring)

lineyouwant is 0 indexed

answered Sep 12, 2017 at 1:59

Sam51

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Abe · Accepted Answer · 2017-09-12 02:07:22Z

1

Try this:

string = """line1
line2
line3
line4
line5"""
str_list = string.split('\n')
str_list[4] = "my new line value"
string = "\n".join(str_list)
print(string)

answered Sep 12, 2017 at 2:07

Abe

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