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# Intro to Python

<br>

## Week 1 Review

<br>

## ``type``s, `print`, `input`

<br>

### [Prof. Lane](#links)

<br>

#### Virtual Office Hours 10AM & 7PM:
#### [sdccd-edu.zoom.us/my/dlane](https://sdccd-edu.zoom.us/my/dlane)

---

## Attendance

<br>

When I call your name, raise your hand and...

- Name a type or function
- Explain what it does

<br>

If we run out of types or functions, tell us something you learned last week.

note:
- [officefile:///home/hobs/code/mesa_python/mesa_python/data/private-fall26/runestone_roster_fall26.ods](officefile:///home/hobs/code/mesa_python/mesa_python/data/private-fall26/runestone_roster_fall26.ods)
- How do you convert from one type to another?
- What is active learning?

---

## Challenge

## Create an integer variable

note:
- How many different ways can you think of?

---

```python
num_sides = 4
```

note:
- What character do you use for a separator in Python numbers

---

```python
num_bytes = 4_000_000_000
```

note:
- translate that number into natural language?
- what is that number in natural language?
- 4 million?
- how much RAM would you need to hold that many bytes?

---

## 4GB in scientific notation?

---

```python
num_bytes = 4 * 1e9
num_bytes = 4 * 1e9
num_bytes = int(4 * 1e9)
```

---

```python
num_bytes = int(4 * 1e9)
```

note:
- translate that number into natural language?

---

- Do a math operation (addition, subtraction, multiplication, division)

- Create `str`, `int`, and `float` variables
- Data types and how to convert between types
- Send and receive standard text input and output
  - `print()`
  - `input()`
- Active learning
- Run a python program in the terminal (Git-Bash)

---

## You

- What do you want to do with Python?

---

## What is bash?

---

- Every computer has a text "command line" interface like bash 
- A terminal (or shell) is your window into a computer's brain  
- In Bash you can type commands to manipulate files and directories 
- Bash is the best way to explore and get to know your computer

---

## Bash as a text adventure!

- cd: choose door   
- ls: looksee       
- pwd: print where them dam I am    
- mkdir: make "door"

note:
- Sowershell is crap (literally enshittified)

---

## Can you add strings?

---

```python
>>> print('hello', 'world')
```

---

```python
>>> print('hello' + 'world')
```

---

```python
>>> print('Hello ' * 3.0)
```

---

```python
>>> print('Hello ' ** 3)
```

---

```python
>>> print('Hello ' * '3')
```

---

## What does this do?

```python
>>> str.upper('yelling')
```

---

## Explore `str.`[TAB]

---
```
or

```python
>>> str.upper('YELLING')
```

```python
>>> print('Hello '.lower())
```

## Help me teach

After you've played a few gameshell games tell me some ways to teach

- ``find``   
- ``grep``   
- ``cat``    
- ``less``/``more``   
- ``nano``

---

## GameShell

[bash.proai.org](https://bash.proai.org/)

^[github.com/hobson/GameShell-Browser](github.com/hobson/GameShell-Browser)^

note:
Let's take a break and see how you do on your own.
You're first intro to forward and backslashes will be to type that URL in your browser.