### ![](https://ga-dash.s3.amazonaws.com/production/assets/logo-9f88ae6c9c3871690e33280fcf557f33.png) Python Programming

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# Flask: Templates Practice Problems

In this homework, you're going to write code for a few problems.

You will practice these programming concepts we've covered in class:
* Variables
* Routing
* Templates

------------

## Deliverables

For each of the challenges listed below, you will create a new `.py` file and write code to solve the problem. For example, you would create `problem1.py` with your solution code to the first problem. Run the file from the command line to check your work.

*Reminder: On your laptop, you can run the file from your command line with the following:*

```
python problem1.py
```

> **Hint**: After finish writing your code, launch your server, go into your browser, and be sure that your Flask app is outputting the intended data.


## Requirements:

* By the end of this, you should have four different `.py` files (one each for the problems).

---

## Problem 1: "Good Artists Copy"

### Skill You're Practicing: Using templates to render Python.`

Make an `html` file like the one from our lesson on templates.

Modify the content of the `html` file.

Create a Flask app that renders this template. Include a variable that you pass into the template.

#### Example Test Code
```
render_template('index.html', name=user)
```

#### Example Test Output
```
"Hi there Akilah. It's great to see you today!"
```

**Hint 1:**

Remember: Templates for variables use the double brackets `{{}}`.

**Hint 2:**

Our module to use is `render_template`.

---


## Problem 2: "Routing"

### Skill You're Practicing: Creating routes with Flask.

Make a copy of one of the three Python files from Problem 1. We're going to modify it.

Create a route whose endpoint is a variable. Pass that variable into your Flask app.

#### Example Test Code
```
http://localhost:5000/<food>
```

#### Example Test Output
```
We all know that chicken is not only good, it's good for you.
```

***Hint 1:****

Recall that we need to put an argument into our function that gets wrapped by the @app.route.

---


## Problem 3: "All of De Bugs!"

### Skill You're Practicing: Turning off debug mode.

In production, we definitely do not want people to see a traceback if our code results in an error.

In `app.run`, check for `debug` to be set to `True`. We don't want that! **If** debug is `False`, write a Flask app that prints to the screen "Ain't no bugs on me!"

#### Example Test Code
```
def hello():
    return "Ain't no bugs on me!"
```

#### Example Test Output

```
"Ain't no bugs on me!"
```

**Hint 1:**

We're looking for an argument within `app.run()` that sets debug to `True`. We want to set this argument to `False`.

**Hint 2:**

By default, Flask sets this argument to `False`.

---


## Problem 4: "Variables Vary Very for Weary Vikings"

### Skill You're Practicing: Passing variables into your Flask app.

Write a Flask app that reads in a variable from another file whose value is your favorite food.

For this problem, you'll have three slightly different versions:
1. The first version will use a variable in your Flask app.
2. The second version will read a variable in from a Python file.
3. The third version will read a variable in from a `.txt` file.

#### Example Test Code
```
favorite_food = Chicken
favorite_dish = BBQ Chicken Pizza
```

#### Example Test Output
```
"My favorite food is chicken on top of my favorite dish, BBQ Chicken Pizza"
```

**Hint 1:**

Refer to your class notes from the Variables lesson for how to read in a variable in each approach/style.