code: def is_installable_file(path):
      
      from .vendor.pip_shims.shims import is_installable_dir, is_archive_file
      from .patched.notpip._internal.utils.packaging import specifiers
      from ._compat import Path
  
      if hasattr(path, "keys") and any(
          key for key in path.keys() if key in ["file", "path"]
      ):
          path = urlparse(path["file"]).path if "file" in path else path["path"]
      if not isinstance(path, six.string_types) or path == "*":
          return False
  
      # If the string starts with a valid specifier operator, test if it is a valid
      # specifier set before making a path object (to avoid breaking windows)
      if any(path.startswith(spec) for spec in "!=<>~"):
          try:
              specifiers.SpecifierSet(path)
          # If this is not a valid specifier, just move on and try it as a path
          except specifiers.InvalidSpecifier:
              pass
          else:
              return False
  
      if not os.path.exists(os.path.abspath(path)):
          return False
  
      lookup_path = Path(path)
      absolute_path = "{0}".format(lookup_path.absolute())
      if lookup_path.is_dir() and is_installable_dir(absolute_path):
          return True
  
      elif lookup_path.is_file() and is_archive_file(absolute_path):
          return True
  
      return False
docs: Determine if a path can potentially be installed