from pathlib import Path
p = Path('Store/registry.py')
lines = p.read_text(encoding='utf-8').splitlines()
stack = [0]
for i, line in enumerate(lines, start=1):
    if not line.strip():
        continue
    leading = len(line) - len(line.lstrip(' '))
    if leading > stack[-1]:
        # increased indent -> push
        stack.append(leading)
    else:
        # dedent: must match an existing level
        if leading != stack[-1]:
            if leading in stack:
                # pop until match
                while stack and stack[-1] != leading:
                    stack.pop()
            else:
                print(f"Line {i}: inconsistent indent {leading}, stack levels {stack}")
                print(repr(line))
                break
print('Done')