Data structure format checker

check_format.py

# Simple recursive function that checks the format of a data structure,
# which can consist of dicts, lists, tuples and primitive types.

def check_format(struct, obj):
	if isinstance(struct, dict):
		return isinstance(obj, dict) and all(check_format(substruct, obj[key]) for key, substruct in struct.items())
	if isinstance(struct, tuple):
		return isinstance(obj, tuple) and all(check_format(substruct, obj[i]) for i, substruct in enumerate(struct))
	elif isinstance(struct, list):
		return isinstance(obj, list) and all(check_format(struct[0], item) for item in obj)
	elif isinstance(struct, type):
		return isinstance(obj, struct)

# Usage example
struct = {"name": str, "score": int, "good": bool, "points": [(float, float)]}
obj = {"name": "goblin", "score": 58, "good": False, "points": [(13.6, 4.2), (7.1, 9.5)]}

print(check_format(struct, obj))