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I want to use linsolve to solve a linear system of equations (in giacpy). I have already several values in python (pygen types) for the variables (say x,y and z) and I know how to write some equations like 2*x+3*y+4 etc. But what is the best way to write equalities and put them in linsolve. I cannot write 2*x+3*y+4=5 in python, I could use strings but I am sure there is a more elegant way. Any suggestions would be appreciated.

Edit: Thankfully I realized in linsolve I do not need to write equality so writing works perfectly assuming that the equations are equal to 0.

Is it possible to define infix === in Python? Because that's the way I decided to implement expression equality in the Python compatibility mode of Xcas. Otherwise equal() prefixed could be redefined to do that.

I do not think it is possible to use === in python. Equal works though, thanks for the suggestion.