stringcalc.tension.unit_weight# stringcalc.tension.unit_weight(T, L, pitch)# From scale length, pitch, and desired tension, compute unit weight (mass per unit length) [lbm in-1]. Parameters: T (float) – Tension [lbf]. L (float) – Scale length [in]. pitch (str) – Pitch name in SPN, e.g. “A4”. Return type: float