don't use --config in dump-model-params

scripts/dump-model-params.py

@@ -5,31 +5,18 @@
 
 import argparse
 import tensorflow as tf
-import imp
 
-from tensorpack import TowerContext, logger, PlaceholderInput
+from tensorpack import logger
 from tensorpack.tfutils import varmanip, get_model_loader
 
 parser = argparse.ArgumentParser()
-parser.add_argument('--config', help='config file')
-parser.add_argument('--meta', help='metagraph file')
+parser.add_argument('--meta', help='metagraph file', required=True)
 parser.add_argument(dest='model')
 parser.add_argument(dest='output')
 args = parser.parse_args()
 
-assert args.config or args.meta, "Either config or metagraph must be present!"
-
 with tf.Graph().as_default() as G:
-    if args.config:
-        logger.warn("Using a config script is not reliable. Please use metagraph.")
-        MODEL = imp.load_source('config_script', args.config).Model
-        M = MODEL()
-        with TowerContext('', is_training=False):
-            input = PlaceholderInput()
-            input.setup(M.get_inputs_desc())
-            M.build_graph(*input.get_input_tensors())
-    else:
-        tf.train.import_meta_graph(args.meta)
+    tf.train.import_meta_graph(args.meta)
 
     # loading...
     init = get_model_loader(args.model)