Using raw string properly to send commands over SSH in Python

Question

I have a long long command to send over SSH using Paramiko and I need to wrap the string using "r" parameter but the IDE still tells me it's not written fine. The string is something like that:

somecommand get -n somestuff sa/management --template='{{range .secrets}}{{printf "%s\n" .name}}{{end}}'

I tried doing:

command = r'somecommand get -n somestuff sa/management --template='{{range .secrets}}{{printf "%s\n" .name}}{{end}}'

But got an error. This is probably something super easy to do....

What kind of template code is this? It's very hard to guess how this \n will finally be rendered. Especially without an error message. It's also strange that your error didn't come with an error message. — Håken Lid
– Håken Lid, Commented Jun 12, 2016 at 12:24

RainbowRevenge · Accepted Answer · 2016-06-12 12:15:39Z

2

First, you are missing a quote at the end of your string. The second problem is that you can't use quotes inside a string like that.

r'some'thing'

won't work while

r'some"thing'

will work. Since you have quotes in quotes inside the string use a triple-quoted string instead:

r"""some"thi'ng"""

So a working version of your string would be:

command = r"""somecommand get -n somestuff sa/management --template='{{range .secrets}}{{printf "%s\n" .name}}{{end}}'"""

answered Jun 12, 2016 at 12:15

RainbowRevenge

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1 Comment

Pavel Zagalsky Over a year ago

Brilliant, mate! Thanks a lot!

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