update the code for more understanding

1 File handle/File handle text/question 5.py

@@ -1,20 +1,52 @@
 """Write a function in python to count the number of lowercase
 alphabets present in a text file “happy.txt"""
 
+import time
+import os
+
+print("You will see the count of lowercase, uppercase and total count of alphabets in provided file..")
+
+
+file_path = input("Please, Enter file path: ")
+
+if os.path.exists(file_path):
+    print('The file exists and this is the path:\n',file_path) 
+
+
+def lowercase(file_path):
+    try:
+
+        with open(file_path, 'r') as F:
+            # Define the initial count of the lower and upper case.
+            lowercase_count = 0
+            uppercase_count = 0
+
+            value = F.read()
+
+            for i in value:
+                if i.islower():
+                    # It will increase the count.
+                    lowercase_count += 1
+                elif i.isupper():
+                    uppercase_count += 1
+
+
+
+            total_count = lowercase_count+uppercase_count
+
+            print("The total number of lower case letters are", lowercase_count)
+            time.sleep(1)
+            print("The total number of upper case letters are", uppercase_count)
+            time.sleep(1)
+            print("The total number of letters are", total_count)
+            time.sleep(1)
+
+    except FileNotFoundError:
+        print("File is not exist.. Please check AGAIN")
+
+
 
-def lowercase():
-    with open("happy.txt") as F:
-        count_lower = 0
-        count_upper = 0
-        value = F.read()
-        for i in value:
-            if i.islower():
-                count_lower += 1
-            elif i.isupper():
-                count_upper += 1
-        print("The total number of lower case letters are", count_lower)
-        print("The total number of upper case letters are", count_upper)
-        print("The total number of letters are", count_lower + count_upper)
 
 if __name__ == "__main__":
-    lowercase()
+
+    lowercase(file_path)