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from __future__ import annotations
import re
from typing import Iterable
__all__ = ("join_paths", "normalize_path")
multi_slash_pattern = re.compile("//+")
def normalize_path(path: str) -> str:
"""Normalize a given path by ensuring it starts with a slash and does not end with a slash.
Args:
path: Path string
Returns:
Path string
"""
path = path.strip("/")
path = f"/{path}"
return multi_slash_pattern.sub("/", path)
def join_paths(paths: Iterable[str]) -> str:
"""Normalize and joins path fragments.
Args:
paths: An iterable of path fragments.
Returns:
A normalized joined path string.
"""
return normalize_path("/".join(paths))
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