feat: added implementation to send mail using python

python/welcome-email/README.md

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+# 📧 Sending Welcome Emails using Mailgun's Email API
+A sample Python Cloud Function for sending a welcome email to a newly registered user.
+
+## 📝 Environment Variables
+Go to Settings tab of your Cloud Function. Add the following environment variables.
+
+* **MAILGUN_API_KEY** - API Key for Mailgun 
+* **MAILGUN_DOMAIN** - Domain Name from Mailgun
+
+## 🚀 Building and Packaging
+
+To package this example as a cloud function, follow these steps.
+
+```bash
+$ cd demos-for-functions/python/welcome-email
+
+$ virtualenv env
+
+$ source env/bin/activate
+
+$ pip3 install requirements.txt
+```
+Create a .env file with the following content
+
+```
+MAILGUN_API_KEY = 'Replace this with your key here'
+MAILGUN_DOMAIN = 'Replace this with your Domain'
+
+```
+
+* Ensure that your folder structure looks like this 
+```
+.
+├── main.py
+├── env
+└── requirements.txt
+```
+
+* Navigate to the Overview Tab of your Cloud Function > Deploy Tag
+* Input the command that will run your function (in this case "python3 main.py") as your entrypoint command
+* Click 'Activate'
+
+## 🎯 Trigger
+
+Head over to your function in the Appwrite console and under the Settings Tab, enable the `users.create` and `account.create` event.

python/welcome-email/main.py

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+import requests
+import os
+import json
+
+payload = json.parse(os.environ.get('APPWRITE_FUNCTION_EVENT_PAYLOAD'))
+name = payload['name']
+email = payload['email']
+
+
+from dotenv import load_dotenv
+
+load_dotenv()
+
+basedir = os.path.abspath(os.path.dirname(__file__))
+key = os.environ.get('MAILGUN_API_KEY')
+domain = os.environ.get('MAILGUN_DOMAIN')
+
+request_url = 'https://api.mailgun.net/v2/{0}/messages'.format(Domain)
+request = requests.post(request_url, auth=('api', key), data={
+    'from': 'Welcome to My Awesome App <[email protected]>',
+    'to': email,
+    'subject': 'Welcome on board {0}!'.format(name),
+    'text': 'Hi {0}\nGreat to have you with us. ! 😍'.format(name)
+})

python/welcome-email/requirements.txt

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+requests==2.25.1
+urllib3==1.26.2