"""
Site customization for Python startup.

Ensures the repository root is on sys.path so tests can reliably import
the local package (e.g. `import missionledger.dsl`). This is a small,
non-invasive shim that helps CI environments where the Python path may not
include the project root by default.
"""

import sys
import os

try:
    # Path to the repository root (directory containing this file)
    _repo_root = os.path.dirname(os.path.abspath(__file__))
    if _repo_root not in map(os.path.abspath, sys.path):
        sys.path.insert(0, _repo_root)
except Exception:
    # Be conservative: do not fail startup if this ever goes wrong
    pass