Chatty reference · python week 2

69 words

1 min read

2026-08-16T00:00:00.000Z

Visual companion

Python

Type and operator map

Python Week 1: the first filter for runtime behavior

Open gallery Related surface

View

Revision summary

What this note is really saying

Short form

W2–3 combined in source # 18. Python W2–3 — Conditionals Core structures: Patterns: ### Binary decision $$P\rightarrow A/B$$ ### Multiple mutually exclusive cases $$P_1,P_2,\ldots,P_n$$ ### Compound condition ### Alternative condition Important distinction: versus and nested conditionals.

18. Python W2–3 — Conditionals

Core structures:


python
if condition:
    ...
elif condition:
    ...
else:
    ...

Patterns:

Binary decision

P\rightarrow A/B

Multiple mutually exclusive cases

P_1,P_2,\ldots,P_n

Compound condition


python
if A and B:

Alternative condition


python
if A or B:

Important distinction:


python
and

versus


python
or

and nested conditionals.

We'll also train truth-table thinking, not just syntax.