Inspecting code in Python
Lisp users would laugh, since they have macros, but Python supports some basic code inspection and modification. Consider the following pieces of code: margin = lambda v: 1 - v['cost'] / v['sales'] What if you wanted another function that lists all the dictionary indices used in the function? That is, you wanted to extract cost and sales? This is a real-life problem I encountered this morning. I have 100 functions, each defining a metric. For example, ...