diff --git a/py3x/__init__.py b/py3x/__init__.py
index ced3179..822bb71 100644
--- a/py3x/__init__.py
+++ b/py3x/__init__.py
@@ -1,9 +1,21 @@
 print("loading py3x/__init__.py")
 
+import sys
 from py3x.functions import parse_args
 
 def main():
     """ Main function """
     print("running function main from py3x/__init__.py")
-    parse_args()
 
+    args = parse_args(sys.argv[1:])
+
+    if args.verbose:
+        if args.input:
+            print("input file name is: {}".format(args.input))
+        if args.output:
+            print("output file name is: {}".format(args.output))
+    else:
+        if args.input:
+            print(args.input)
+        if args.output:
+            print(args.output)
diff --git a/py3x/functions.py b/py3x/functions.py
index 1981020..eeae6e2 100644
--- a/py3x/functions.py
+++ b/py3x/functions.py
@@ -2,7 +2,7 @@ print("loading py3x/functions.py")
 
 import argparse
 
-def parse_args():
+def parse_args(args):
     """ Parse command line arguments """
     print("running function parse_args from py3x/functions.py")
 
@@ -13,15 +13,6 @@ def parse_args():
                         help="Output file name")
     parser.add_argument("-v", "--verbose", action="store_true",
                         help="Increase output verbosity")
-    args = parser.parse_args()
-    if args.verbose:
-        if args.input:
-            print("input file name is: {}".format(args.input))
-        if args.output:
-            print("output file name is: {}".format(args.output))
-    else:
-        if args.input:
-            print(args.input)
-        if args.output:
-            print(args.output)
+    args = parser.parse_args(args)
+    return args