Python · Beginner

Python Programming

Fifty-six lessons that build genuine Python skill: syntax, data structures, control flow, functions, files, errors, modules and five small programs you will actually use.

56 steps, written for someone starting from zero: the lessons plus a checkpoint quiz task after every ten. Each lesson opens with a starting point you have to change, not the finished answer. Work through it in order and you finish with a program you wrote yourself — the kind of thing you can show in an interview, not a certificate you bought.

56 tasks 6 sections 0 done

Start task 1

First steps

1 Hello, Python Python —
2 Variables Python —
3 Numbers and maths Python —
4 Strings and f-strings Python —
5 input() Python —
6 Booleans and comparisons Python —
7 Comments and names Python —
8 Type conversion Python —
9 Debug a script Python —
10 Your first program Concept —

Data structures

11 Lists Python —
12 List methods Python —
13 Slicing Python —
14 Loops over lists Python —
15 Dictionaries Python —
16 Tuples Python —
17 Sets Python —
18 Nested structures Python —
19 Sorting Python —
20 Pick the right structure Concept —

Control flow and functions

21 if / elif / else Python —
22 Truthiness Python —
23 while loops Python —
24 range() Python —
25 break and continue Python —
26 Defining functions Python —
27 Arguments and defaults Python —
28 Return vs print Python —
29 Scope Python —
30 Combine it Concept —

Files, errors and modules

31 Reading a file Python —
32 Writing a file Python —
33 try / except Python —
34 Raising errors Python —
35 Importing modules Python —
36 Dates and times Python —
37 CSV files Python —
38 JSON Python —
39 List comprehensions Python —
40 Clean up a script Concept —

Build something real

41 Average of a list Python —
42 Count with a dict Python —
43 Filter a list Python —
44 Sort by a key Python —
45 Build a fee calculator Python —
46 Search a list Python —
47 Format money Python —
48 Simple classes Python —
49 Work with an API Python —
50 Your Python toolbox Concept —

Capstone: five small programs

51 Format an academy invoice Python —
52 Tally attendance with a dictionary Python —
53 Average a column of text data Python —
54 Write a function with a default argument Python —
55 Model a student with a class Python —
56 Guard bad input with try/except Python —

Final exam and certificate

Twenty questions from the whole track. Pass mark is 60%. Retakes are free and the best score is the one printed on your certificate.

Create a free account to take the exam