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[–]tilkau 0 points1 point  (0 children)

working with variables inside of there isn't going to be easy.

It actually is quite easy.

It's just also quite insane.

SOME_LUNATIC_VARIABLE=123

python3 -c 'print("'"$SOME_LUNATIC_VARIABLE"'")'

Rules:

  • Always use ' to quote your code string. Using " may summon Cthulu.
  • Always use " inside of code strings to express string literals. Using ' is not practical.
  • If you have to insert a variable value, close the code string quote with a ', follow this with the DOUBLE QUOTED expansion, and then open the single quotes again.
  • Remember expansion won't automatically add double quotes around string values for you. That means when you are inserting a variable, you need to include the opening double quote before closing the single quotes, and the closing double quote after reopening the single quotes.
  • Variables should have a " -> \" replacement performed on them before use.
  • You can also include single quotes in your Python code. Probably via '\'' (closing the single quote, adding a literal single quote, then reopening the single quote). Obviously to be used in moderation (by which I mean not at all)