TODO: Add Argument parsing

--dir -> pet images folder
--arch -> CNN Architecture
--dogfile -> File with Dog Names

ai-programming-with-python/C02P8-pre-trained-image-classifier/get_input_args.py

@@ -1,12 +1,12 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 # */AIPND-revision/intropyproject-classify-pet-images/get_input_args.py
-#                                                                             
-# PROGRAMMER: 
-# DATE CREATED:                                   
-# REVISED DATE: 
-# PURPOSE: Create a function that retrieves the following 3 command line inputs 
-#          from the user using the Argparse Python module. If the user fails to 
+#
+# PROGRAMMER:
+# DATE CREATED:
+# REVISED DATE:
+# PURPOSE: Create a function that retrieves the following 3 command line inputs
+#          from the user using the Argparse Python module. If the user fails to
 #          provide some or all of the 3 inputs, then the default values are
 #          used for the missing inputs. Command Line Arguments:
 #     1. Image Folder as --dir with default value 'pet_images'
@@ -17,17 +17,18 @@
 # Imports python modules
 import argparse
 
+
 # TODO 1: Define get_input_args function below please be certain to replace None
-#       in the return statement with parser.parse_args() parsed argument 
+#       in the return statement with parser.parse_args() parsed argument
 #       collection that you created with this function
-# 
+#
 def get_input_args():
     """
     Retrieves and parses the 3 command line arguments provided by the user when
-    they run the program from a terminal window. This function uses Python's 
-    argparse module to created and defined these 3 command line arguments. If 
-    the user fails to provide some or all of the 3 arguments, then the default 
-    values are used for the missing arguments. 
+    they run the program from a terminal window. This function uses Python's
+    argparse module to created and defined these 3 command line arguments. If
+    the user fails to provide some or all of the 3 arguments, then the default
+    values are used for the missing arguments.
     Command Line Arguments:
       1. Image Folder as --dir with default value 'pet_images'
       2. CNN Model Architecture as --arch with default value 'vgg'
@@ -36,13 +37,20 @@ def get_input_args():
     Parameters:
      None - simply using argparse module to create & store command line arguments
     Returns:
-     parse_args() -data structure that stores the command line arguments object  
+     parse_args() -data structure that stores the command line arguments object
     """
     # Create Parse using ArgumentParser
-    
+    parser = argparse.ArgumentParser(description="Identify dog breeds in images")
+
     # Create 3 command line arguments as mentioned above using add_argument() from ArguementParser method
-    
-    
-    # Replace None with parser.parse_args() parsed argument collection that 
-    # you created with this function 
-    return None
+    parser.add_argument(
+        "-d", "--dir", default="pet_images/", help="path to the pet images folder"
+    )
+    parser.add_argument("-a", "--arch", default="vgg", help="CNN Model Architecture")
+    parser.add_argument(
+        "-f", "--dogfile", default="dognames.txt", help="Textfile with Dog Names"
+    )
+
+    # Replace None with parser.parse_args() parsed argument collection that
+    # you created with this function
+    return parser.parse_args()