Partial function application—provided in Python by `functools.partial`—is a technique for fixing a subset of a function's arguments and producing a new function of reduced arity that supplies the remaining arguments at call time. It belongs to the broader domain of functional programming and demonstrates how functions-as-first-class-objects (and package-level utilities like `functools`) can substitute for object-oriented design patterns such as the Strategy pattern, replacing state stored in class instances with function composition. Partial application is distinct from currying, which transforms an n-ary function into a chain of unary functions and serves primarily as a theoretical model in computer science rather than a practical simplification tool.
Partial function application—provided in Python by `functools.partial`—is a technique for fixing a subset of a function's arguments and producing a new function of reduced arity that supplies the rem…