I have a list of variables like

list = ["$res", "$hp", "def"]

etc. I want to append each element of that list to itself at the start with a hyphen preferably so it looks like,

list = ["$res - $res", "$hp - $hp", "$def - $def"]

How do I achieve this in python? I already have a function takes a list of variable setting code lines and strips them of all text besides the variables themselves. Now I want to combine it with a function that does this to prepare a list of variable names and their values on demand. This is all for some other program but I wanted to do the processing in python.

CodePudding user response：

You can use the formatted string for each values in the list to create the required values, you can achieve it using List-Comprehension:

>>> lst = ["$res", "$hp", "$def"]
>>> [f"{x} - {x}" for x in lst]

['$res - $res', '$hp - $hp', '$def - $def']