def merge_pex_path(self, pex_path):
    """Merges a new PEX_PATH definition into the existing one (if any).
    :param string pex_path: The PEX_PATH to merge.
    """
    if not pex_path:
      return
    self.pex_path = ':'.join(merge_split(self.pex_path, pex_path))
def merge_pex_path ( self , pex_path ) : if not pex_path : return self . pex_path = ':' . join ( merge_split ( self . pex_path , pex_path ) )
Merges a new PEX_PATH definition into the existing one (if any).
    :param string pex_path: The PEX_PATH to merge.