1  """Shared utilities for locating bundled data files."""
 2  
 3  import os
 4  from importlib.resources import files
 5  
 6  
 7  def get_data_path(filename):
 8      """Resolve a bundled data file, checking cwd first for user overrides."""
 9      # Check current working directory first (user can override with local files)
10      if os.path.isfile(filename):
11          return filename
12      # Then check package data
13      resource_path = str(files('ppp.data').joinpath(filename))
14      if os.path.isfile(resource_path):
15          return resource_path
16      return None