Adds action to parser

Author: tainagdcoleman

.gitpod.yml

@@ -3,7 +3,9 @@
 # and commit this file to your remote git repository to share the goodness with others.
 
 tasks:
-  - init: pip install -r requirements.txt
+  - init: |
+      pip install -r requirements.txt
+      pip install -e .
 vscode:
   extensions:
     - ms-python.python

wfcommons/wfchef/chef.py

@@ -11,6 +11,7 @@
 import json
 import argparse
 import math
+import sys
 import networkx as nx
 import numpy as np
 import pandas as pd
@@ -343,6 +344,10 @@ def main():
     parser = get_parser()
     args = parser.parse_args()
 
+    if not hasattr(args, "action"):
+        sys.argv.append("--help")
+        parser.parse_args()
+        
     if args.action == ls_recipe:
         ls_recipe()
     elif args.action == uninstall_recipe: