Merge pull request #345 from PdxCodeGuild/richard-python-lab-17

Richard python lab 17

Code/Richard/python/lab_17.py

@@ -0,0 +1,133 @@
+import json
+
+class ContactList:
+
+    def __init__(self):
+        self.contacts = []
+        #self.phone_number = phone_number
+        #self.email = email
+
+    def load(self):
+        # 1) open 'contacts.json' with option 'r' for read
+        with open ('contacts.json', 'r') as f:
+        # 2) get the text from the file
+            contacts = f.read()
+
+        # 3) convert the text into a python dictionary (json.loads)
+        contacts = json.loads(contacts) # convert a string containing json to a dictionary
+        # 4) get the list of contacts out of the dictionary
+        contacts=contacts['contacts']
+
+        # 5) assign the list of dictionaries to self.contacts
+        self.contacts = contacts
+        ...
+
+    def count(self):
+        return len(self.contacts)
+
+        # return the length of self.contacts
+        #print(contacts)
+
+        ...
+
+    def save(self):
+        # 1) open 'contacts.json' with open 'w' for write
+        with open ('contacts.json', 'w') as f:
+            # contacts = f.read()
+
+            # 2) put self.contacts in a dictionary with the key 'contacts'
+            dictionary = {"contacts":self.contacts}
+
+            # 3) convert the dictionary to a json string (json.dumps)
+
+            contacts = json.dumps(dictionary, indent=2)
+            # 4) write the json string to the file
+
+            # with open ('C:/Users/Richard Watkins/pdx_code/class_raven/Code/Richard/python/contacts.json', 'w') as f:
+            f.write(contacts)
+        ...
+
+    def print(self):
+        # loop over self.contacts
+        for contact in self.contacts:
+            print(contact)
+        #print('here', self.contacts)
+        # print the information for each contact on a separate line
+        ...
+
+    def add(self, name, phone_number, email):
+        # create a new dictionary using the 3 parameters
+        new_dict={}
+        new_dict['name']=name
+        new_dict['phone_number']=phone_number
+        new_dict['email']=email
+        # add the new dictionary to self.contacts
+        self.contacts.append(new_dict)
+
+        ...
+
+    def remove(self, name):
+        # find the contact in self-contacts with the given name
+        for contact in self.contacts:
+            if name == contact['name']:
+                self.contacts.pop(self.contacts.index(contact))
+
+        # remove the element at that index
+
+        ...
+
+    def update(self, old_name, new_name, new_phone_number, new_email):
+        # find the contact in self.contacts with the given old_name
+        for contact in self.contacts:
+            if old_name == contact['name']:
+                print(contact)
+        # set that contacts' name, phone number, etc to the given values
+
+                contact['name']=new_name
+                contact['phone_number']=new_phone_number
+                contact['email']=new_email
+
+        ...
+
+contact_list = ContactList() # create an instance of our class
+contact_list.load()
+print('Welcome to the Contact List App (CLA)')
+while True:
+    command = input('Enter a command: ')
+    if command == 'load':
+        contact_list.load()
+        print(f'Loaded {contact_list.count()} contacts.')
+    elif command == 'save':
+        contact_list.save()
+        print(f'Saved {contact_list.count()} contacts.')
+    elif command == 'print':
+        contact_list.print()
+    elif command == 'add':
+        print('Enter info of contact to add:')
+        name = input('Name: ')
+        phone_number = input('Phone Number: ')
+        email = input('Email: ')
+        contact_list.add(name, phone_number, email)
+    elif command == 'remove':
+        name = input('Name of contact to remove: ')
+        contact_list.remove(name)
+    elif command == 'update':
+        print('Enter info of contact to add:')
+        old_name = input('Name of contact to update: ')
+        new_name = input('New Name: ')
+        new_phone_number = input('New Phone Number: ')
+        new_email = input('New Email: ')
+        contact_list.update(old_name, new_name, new_phone_number, new_email)
+    elif command == 'help':
+        print('Available commands:')
+        print('load   - load all contacts from the file')
+        print('save   - save contacts to a file')
+        print('print  - print all contacts')
+        print('add    - add a new contact')
+        print('remove - remove a contact')
+        print('update - update a contact')
+        print('exit   - exit the program')
+    elif command == 'exit':
+        break
+    else:
+        print('Command not recognized')