diff --git a/opppy/plotting_help.py b/opppy/plotting_help.py
index a65cd4c..4eff7c5 100644
--- a/opppy/plotting_help.py
+++ b/opppy/plotting_help.py
@@ -276,7 +276,7 @@ def add_plot_options(parser):
     parser.add_argument('-lpo','--last_point_only', dest='last_point_only', help='only plot the last data point', nargs='?', type=bool, default=False, const=True )
     parser.add_argument('-ltv','--last_time_value', dest='last_time_value', help='only plot the last time value', nargs=1, type=float)
     parser.add_argument('-fr','--figure_resolution', dest='figure_resolution', help='figure resolution in  dpi', nargs='?', type=float, default=300.0)
-    parser.add_argument('-fs','--font_size', dest='font size', help='set the plot font size', type=float, default=None, nargs="?")
+    parser.add_argument('-fs','--font_size', dest='font_size', help='set the plot font size', type=float, default=None, nargs="?")
     parser.add_argument('-yev','--y_exceeds_value', dest='y_exceeds_value', help='y arrival value', nargs=1, type=float, default=0.0)
     parser.add_argument('-sy','--scale_y', dest='scale_y', help='scale y values', type=float, default=[], action="append")
     parser.add_argument('-sx','--scale_x', dest='scale_x', help='scale x values', type=float, default=[], action="append")
@@ -302,7 +302,7 @@ def add_2d_plot_options(parser):
     parser.add_argument('-xlab','--xlab', dest='x_label', help='x axis label')
     parser.add_argument('-ylab','--ylabl', dest='y_label', help='y axis label')
     parser.add_argument('-fr','--figure_resolution', dest='figure_resolution', help='figure resolution in  dpi', nargs='?', type=float, default=300.0)
-    parser.add_argument('-fs','--font_size', dest='font size', help='set the plot font size', type=float, default=None, nargs="?")
+    parser.add_argument('-fs','--font_size', dest='font_size', help='set the plot font size', type=float, default=None, nargs="?")
     parser.add_argument('-sv','--scale_value', dest='scale_value', help='scale values', type=float, default=1.0)
     parser.add_argument('-sx','--scale_x', dest='scale_x', help='scale x values', type=float, default=1.0)
     parser.add_argument('-sy','--scale_y', dest='scale_y', help='scale y values', type=float, default=1.0)
diff --git a/tests/my_test_opppy_dump_parser.py b/tests/my_test_opppy_dump_parser.py
index 50b3dbb..730fd6f 100644
--- a/tests/my_test_opppy_dump_parser.py
+++ b/tests/my_test_opppy_dump_parser.py
@@ -45,3 +45,4 @@ def build_data_dictionary(self, filename, dump_keys=None):
         return data
         
 
+
diff --git a/tests/my_test_opppy_parser.py b/tests/my_test_opppy_parser.py
index 00f8d26..410738a 100644
--- a/tests/my_test_opppy_parser.py
+++ b/tests/my_test_opppy_parser.py
@@ -14,6 +14,15 @@ def __init__(self):
       self.file_end_string = None
       print("Initializing my_test_opppy_parser")
 
+    def add_parser_args(self, parser):
+        parser.add_argument('-ppt', '--pre_parser_test', dest="pre_parser_test", nargs="?", default=None)
+
+    def pre_parse(self, args):
+        if(args.pre_parser_test is not None):
+            print("pre_parse hook works: args.pre_parser_test")
+        else:
+            print("pre_parse hook works: None")
+
     def parse_cycle_string(self,cycle_string):
       # return dictionary of dictionaries 
       data_dict = {}
@@ -53,8 +62,13 @@ def parse_cycle_string(self,cycle_string):
       # append dictionary with multiple entries
       data_dict['density'] = density_data
 
+      return data_dict
 
+    def post_parse(self, args, data):
+       if(args.pre_parser_test is not None):
+           data["post_parse_test_"+args.pre_parser_test]=data['test_data1']
+       else:
+           data['post_parser_test']=data['test_data1']
 
 
-      return data_dict
-        
+       
diff --git a/tests/my_test_opppy_tally_parser.py b/tests/my_test_opppy_tally_parser.py
index 678b233..56ec98a 100644
--- a/tests/my_test_opppy_tally_parser.py
+++ b/tests/my_test_opppy_tally_parser.py
@@ -20,6 +20,16 @@ def __init__(self):
       self.file_end_string = None
       print("Initializing my_test_opppy_tally_parser")
 
+    def add_parser_args(self, parser):
+        parser.add_argument('-ppt', '--pre_parser_test', dest="pre_parser_test", nargs="?", default=None)
+
+    def pre_parse(self, args):
+        if(args.pre_parser_test is not None):
+            print("pre_parse hook works: args.pre_parser_test")
+        else:
+            print("pre_parse hook works: None")
+
+
     def parse_cycle_string(self,cycle_string):
       cycle_data_keys = ['bins','odd_counts','even_counts']
       cycle_info_keys = ['time', 'cycle']
@@ -58,4 +68,8 @@ def parse_cycle_string(self,cycle_string):
       data_dict['cool_counts'] = counts
 
       return data_dict
-        
+
+    def post_parse(self, args, data):
+       print("Post Parse Test Data keys: ",data.keys())
+
+