import SCons.Node CacheDir('cache') def b(target, source, env): with open(target[0].abspath, 'w') as f: pass def scan(node, env, path): # Have the node depend on a directory, which depends on an instance of # SCons.Node.Python.Value. sample_dir = env.fs.Dir('dir2') env.Depends(sample_dir, env.Value('c')) return [sample_dir, env.Value('d'), env.Value(b'\x03\x0F', name='name3')] scanner = Scanner(function=scan, node_class=SCons.Node.Node) builder = Builder(action=b, source_scanner=scanner) env = Environment() env.Append(BUILDERS={'B': builder}) # Create a node and a directory that each depend on an instance of # SCons.Node.Python.Value. sample_dir = env.fs.Dir('dir1') env.Depends(sample_dir, [env.Value('a'), env.Value(b'\x01\x0F', name='name1')]) sample_file = env.fs.File('testfile') env.Depends(sample_file, [env.Value('b'), env.Value(b'\x02\x0F', name='name2')]) env.B(target='File1.out', source=[sample_dir, sample_file])