ducoterra/python-2020-5-day-class
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

move note

Browse Source
This commit is contained in:
ducoterra
2020-10-25 21:16:26 -04:00
parent 79e3fd74ff
commit d15165b114
1 changed files with 24 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
docs/day1.md
View File

@@ -6,39 +6,39 @@ Before we can dive into our web project we have to cover some Python basics. Let
1. Make sure you have a (venv) to the left of your terminal cursor. Type `python` and press enter.
![python_prompt](img/day1/python_prompt.gif)
1. Type `1+1` and press enter. You should see `2` returned. As long as you see the `>>>` to the left of your cursor you can type any python code you want and press enter to execute it.
**NOTE**: This is not a terminal! You cannot run your django server from here. Before you can do things in the terminal you must exit by typing `exit()`!
1. Type `x=1` and press enter. Nothing should return.
![python_prompt](img/day1/python_prompt.gif)
1. Type `x` and press enter. You should see `1` return. We've give `x` the value of `1`
2. Type `1+1` and press enter. You should see `2` returned. As long as you see the `>>>` to the left of your cursor you can type any python code you want and press enter to execute it.
1. Type `x+1` and press enter. You should see `2` returned just like `1+1` above.
3. Type `x=1` and press enter. Nothing should return.
1. Type `x=3` and press enter. Nothing should return.
4. Type `x` and press enter. You should see `1` return. We've give `x` the value of `1`
1. Type `x` and press enter. You should see `3` return. Variables in Python can be reassigned to anything else.
5. Type `x+1` and press enter. You should see `2` returned just like `1+1` above.
1. Type `x="hello"` and press enter. Nothing should return.
6. Type `x=3` and press enter. Nothing should return.
1. Type `x` and press etner. You should see `hello` printed to the screen. Variables in python do not have a "type" - they can be integers, strings, floats, etc and can switch between them at will.
7. Type `x` and press enter. You should see `3` return. Variables in Python can be reassigned to anything else.
1. Type `my_name = "\<your name here\>"` and press enter. Nothing should return
8. Type `x="hello"` and press enter. Nothing should return.
1. Type `my_name` and press enter. You should see your name printed to your terminal. `my_name` is a much better variable name than `x`. It describes the thing it stores. Please use variable names that are descriptive.
9. Type `x` and press etner. You should see `hello` printed to the screen. Variables in python do not have a "type" - they can be integers, strings, floats, etc and can switch between them at will.
1. Type `my_coordinates = (1,2)` and press enter. Nothing should return.
10. Type `my_name = "\<your name here\>"` and press enter. Nothing should return
1. Type `my_coordinates` and press enter. `(1,2)` should return. This is called a `tuple`. It's useful for storing multiple points of data.
11. Type `my_name` and press enter. You should see your name printed to your terminal. `my_name` is a much better variable name than `x`. It describes the thing it stores. Please use variable names that are descriptive.
1. Type `address = (123, "lane ave", "Columbus", "OH", 43212)` and press enter. Nothing should return
12. Type `my_coordinates = (1,2)` and press enter. Nothing should return.
1. Type `address` and press enter. You should see the address print to the terminal. Tuples can hold multiple types of data - 123 is a number and "lane ave" is a string.
13. Type `my_coordinates` and press enter. `(1,2)` should return. This is called a `tuple`. It's useful for storing multiple points of data.
1. Type `len(address)` and press enter. You should see `5` printed to the terminal. There are 5 "things" in the tuple:
14. Type `address = (123, "lane ave", "Columbus", "OH", 43212)` and press enter. Nothing should return
15. Type `address` and press enter. You should see the address print to the terminal. Tuples can hold multiple types of data - 123 is a number and "lane ave" is a string.
16. Type `len(address)` and press enter. You should see `5` printed to the terminal. There are 5 "things" in the tuple:
`123 ` (1)
@@ -50,17 +50,17 @@ Before we can dive into our web project we have to cover some Python basics. Let
`43212` (5)
1. Type `address[0]` and press enter. You should see `123` printed to the terminal. You just accessed the first item in the tuple. Tuples and other collections start at 0 and count up.
17. Type `address[0]` and press enter. You should see `123` printed to the terminal. You just accessed the first item in the tuple. Tuples and other collections start at 0 and count up.
1. Type `address[1]` and press enter. You should see `"lane ave"` print to the terminal. You just accessed the second item in the tuple
18. Type `address[1]` and press enter. You should see `"lane ave"` print to the terminal. You just accessed the second item in the tuple
1. Type `vocabulary = {"apple": "the usually round, red or yellow, edible fruit of a small tree, Malus sylvestris, of the rose family.", "banana": "a tropical plant of the genus Musa, certain species of which are cultivated for their nutritious fruit."}` and press enter. Nothing should return.
19. Type `vocabulary = {"apple": "the usually round, red or yellow, edible fruit of a small tree, Malus sylvestris, of the rose family.", "banana": "a tropical plant of the genus Musa, certain species of which are cultivated for their nutritious fruit."}` and press enter. Nothing should return.
1. Type `vocabulary` and press enter. {"apple": ...} should print to the terminal. This is called a dictionary.
20. Type `vocabulary` and press enter. {"apple": ...} should print to the terminal. This is called a dictionary.
2. Type `vocabulary["apple"]` and press enter. `'the usually round, red or yellow, edible fruit of a small tree, Malus sylvestris, of the rose family.'` should print to the terminal. You just access the definition of apple. Much like tuples can be accessed with `address[0]` or `address[1]`, dictionary values can be accessed by supplying the keyword, or key for short.
21. Type `vocabulary["apple"]` and press enter. `'the usually round, red or yellow, edible fruit of a small tree, Malus sylvestris, of the rose family.'` should print to the terminal. You just access the definition of apple. Much like tuples can be accessed with `address[0]` or `address[1]`, dictionary values can be accessed by supplying the keyword, or key for short.
1. Type `exit()` and press enter. You should no longer see `>>>` to the left of the cursor.
22. Type `exit()` and press enter. You should no longer see `>>>` to the left of the cursor.
## A Python Program