Introduction

Sluth is a library that can find the definition of a function or class in a file, without importing it. It is useful for tools that need to find the definition of a function, for example, to generate documentation or to perform static analysis.

from sluth import NodeWalk

source = """
raise ValueError('This file cannot be run')

class Foo:
    def bar(self):
        pass
"""

node_walk = NodeWalk.from_source(source)
assert node_walk["Foo"]["bar"].lineno == 5