#3 - Python

Author: juanchernandezdev

Roadmap/03 - ESTRUCTURAS DE DATOS/python/juanchernandezdev.py

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+### Python Data Structures ###
+
+#! List
+
+my_list = [1, 6, 3, 10, 5]
+print(my_list)
+
+my_str = 'hello'
+print(list(my_str))
+
+# Append
+my_list.append(8)
+print(my_list)
+
+# Remove
+my_list.remove(8)
+print(my_list)
+
+# Insert
+my_list.insert(2, 50)
+print(my_list)
+
+# Sort
+my_list.sort()
+print(my_list)
+
+#! Dictionary
+
+my_dict = { 'name': 'John', 'lastname': 'Doe', 'age': 44}
+print(my_dict)
+
+# Add
+my_dict['country'] = 'Norway'
+print(my_dict)
+
+# Remove
+my_dict.pop('name')
+print(my_dict)
+
+# Update
+my_dict['lastname'] = 'new lastname'
+print(my_dict)
+
+# Order
+print(sorted(my_dict.keys()))
+
+#! Tuple
+
+my_tuple = (1, 2, 3, 8, 7, 4)
+print(my_tuple)
+
+#* Since tuples are immutable you can't add or remove items.
+
+# Order
+print(sorted(my_tuple))
+
+#! Set
+my_set = {1, 2, 3, 5, 8, 12, 3, 3, 4, 5} # The 3 will be only one time since sets don't allow duplicated items.
+print(my_set)
+
+# Add
+my_set.add(50)
+print(my_set)
+
+# Remove
+my_set.remove(4)
+print(my_set)
+
+# Update
+my_second_set = {100, 200, 500}
+my_set.update(my_second_set)
+print(my_set)
+
+# Order
+print(sorted(my_set))
+
+#! Optional Challenge
+print('---Optional Challenge---')
+
+# Start the program
+# Give the user a set of option, to insert, search, update, or remove a contact
+# Ask the user for the data corresponding to the operation that was selected
+# Execute the selected operation
+# Verify that telephone number data type is numeric and contains no more than 11 digits
+# Notify the user if the operation was successful or not
+# Ask the user to add another contact or to end the programm
+
+contacts_list = []
+id = 1
+
+user_start = input('Please type start to run the program: ')
+run_program = False
+
+if user_start == 'start':
+  run_program = True
+  
+def search_contact(contact_name, list):
+    for contact in list:
+      if contact_name == contact['contact_name'].lower():
+        return contact
+      
+def update_contact(contact_name, list):
+    for contact in list:
+      index = list.index(contact)
+      if contact_name == list[index]['contact_name'].lower():
+        print(list[index]['contact_name'])
+        new_name = input('Type the new name for your contact: ').lower()
+        new_phone = input('Type the new phone for your contact: ').lower()
+        list[index]['contact_name'] = new_name
+        list[index]['contact_phone'] = new_phone
+        print(f'Contact updated: {list[index]['contact_name']} - {list[index]['contact_phone']}')
+      
+def delete_contact(contact_name, list):
+    for contact in list:
+      index = list.index(contact)
+      if contact_name == list[index]['contact_name'].lower():
+        print(list[index]['contact_name'])
+        del list[index]
+        print('Contact deleted')
+        
+def show_contacts(list):
+    if len(list) == 0:
+      print('Your contact list is empty')
+    
+    for contact in list:
+      print(f'{contact['contact_name']} - {contact['contact_phone']}')
+  
+  
+while run_program == True:
+  print('----Choices----')
+  user_choice = input('a: Add contact\nb: Search contact\nc: Update contact\nd: Remove contact\ne: Show all contacts\nType the corresponding letter to perform an action or type "exit" to end the program: ').lower()
+  
+  if user_choice== 'exit':
+    run_program = False
+  
+  # Add Contact
+  
+  if user_choice == 'a':
+    print('----New Contact----')
+    contact_name: str = input('Enter your contact name: ').title()
+    contact_phone: str = input('Enter your contact phone number: ')
+    
+    if not contact_phone.isnumeric():
+      print('Phone number should contain only numbers!')
+    
+    if len(contact_phone) > 11:
+      print('Phone number should contain only 11 digits or less')
+    else:
+      new_contact = {'id': id, 'contact_name': contact_name, 'contact_phone': contact_phone }
+      id += 1
+      contacts_list.append(new_contact)
+    
+  # Search Contact
+      
+  if user_choice == 'b':
+    print('----Search Contact----')
+    contact_name: str = input('Type the name of the contact you want to search: ').lower()
+    contact = search_contact(contact_name, contacts_list)
+    print(f'Contact name: {contact['contact_name'].title()}\nContact phone number: {contact['contact_phone']}')
+  
+  # Update Contact
+  
+  if user_choice == 'c':
+    print('----Search Update----')
+    contact_name: str = input('Type the name of the contact you want to update: ').lower()
+    update_contact(contact_name, contacts_list)
+  
+  # Remove Contact
+    
+  if user_choice == 'd':
+    print('----Remove Contact----')
+    contact_name: str = input('Type the name of the user you want to remove: ').lower()
+    delete_contact(contact_name, contacts_list)
+  
+  # Show Contacts
+      
+  if user_choice == 'e':
+    print('----Contacts----')
+    show_contacts(contacts_list)
+