replacing with py, clearing it up

Author: Chris

5-advanced-prompts/README.md

@@ -573,20 +573,20 @@ Here are some good practices to consider:
 
 ## Assignment
 
-Here's code in JavaScript showing how to build a simple API using Express.js:
+Here's code in Python showing how to build a simple API using Flask:
 
-```javascript
-const express = require('express')
+```python
+from flask import Flask, request
 
-const app = express()
+app = Flask(__name__)
 
-app.get('/', (req, res) => {
-  res.send('Hello World!')
-})
+@app.route('/')
+def hello():
+    name = request.args.get('name', 'World')
+    return f'Hello, {name}!'
 
-app.listen(3000, () => {
-  console.log('Example app listening on port 3000!')
-})
+if __name__ == '__main__':
+    app.run()
 ```
 
 Use an AI assistant like GitHub Copilot or ChatGPT and apply the "self-refine" technique to improve the code.
@@ -598,7 +598,7 @@ Please attempt to solve the assignment by adding suitable prompts to the code.
 > [!TIP]
 > Phrase a prompt to ask it to improve, it's a good idea to limit how many improvements. You can also ask to improve it in a certain way, for example architecture, performance, security, etc. 
 
-[Solution](./solution.js)
+[Solution](./solution.py)
 
 ## Knowledge check
 

5-advanced-prompts/assignment.py

@@ -0,0 +1,11 @@
+from flask import Flask, request
+
+app = Flask(__name__)
+
+@app.route('/')
+def hello():
+    name = request.args.get('name', 'World')
+    return f'Hello, {name}!'
+
+if __name__ == '__main__':
+    app.run()

5-advanced-prompts/assignment.js 5-advanced-prompts/javascript/assignment.js

@@ -0,0 +1,36 @@
+# here are some suggestions to improve the code:
+
+# - Add input validation to prevent malicious input from being processed by the server. You can use a library like flask-wtf to validate user input and sanitize it before processing.
+
+# - Use environment variables to store sensitive information such as database credentials, API keys, and other secrets. This will prevent the information from being hard-coded in the code and exposed in case of a security breach.
+
+# - Implement error handling to provide meaningful error messages to the user in case of errors. You can use the @app.errorhandler() decorator to handle exceptions and return an error response.
+
+from flask import Flask, request
+from flask_wtf import FlaskForm
+from wtforms import StringField, SubmitField
+from wtforms.validators import DataRequired, Length, Email
+
+app = Flask(__name__)
+app.config['SECRET_KEY'] = 'secret_key'
+
+class HelloForm(FlaskForm):
+    name = StringField('Name', validators=[DataRequired(), Length(min=3)])
+    email = StringField('Email', validators=[DataRequired(), Email()])
+    submit = SubmitField('Submit')
+
+@app.route('/', methods=['GET', 'POST'])
+def hello():
+    form = HelloForm()
+    if form.validate_on_submit():
+        name = form.name.data
+        email = form.email.data
+        return f'Hello, {name} ({email})!'
+    return form.render_template()
+
+@app.errorhandler(400)
+def bad_request(error):
+    return 'Bad request', 400
+
+if __name__ == '__main__':
+    app.run()