Python Coding Practice

Definition first

What Python means

Python is a programming language for writing exact instructions, often used for automation data scripts and backend APIs. Start with one mental model: input goes through steps and becomes output.

Minimum run factsFile app.pyRun python app.pyHabit Use a tiny script and print the data shape after every transformation

Program

An ordered set of instructions. It reads input, follows rules, and produces output.

Value and variable

A value is data. A variable is the name you use to hold and reuse that data.

Function

A named piece of work. It takes input, does one job, and can return a result.

Runtime

Python 3 is the place that actually runs code from app.py.

First readable code

Variables

names lists dictionaries strings

score = 40 + 2
print(score)

Output 42

Language lineage

Python family tree

See where Python comes from, which languages feel close, and what to learn next.

roots

ABCCUnix tools

currentPythonReadable scripting family

relatives

Ruby Lua Julia R

familyReadable scripting family

best used for

automation, data work, backend APIs, and beginner friendly problem solving

learn next

SQL Bash Go

Zero base path

1Read one rule2Predict output3Type from memory4Run checklist5Repeat with one change

Question bank

Search before practice

Pick a stage or search across the open programming bank. Jump straight to the matching drill.

18 matching questions

Search programming questions

Q 1ChoiceStage 1 definitions

Python practice 1

Python question 1. Choose the statement that matches function definition.

Q 2ChoiceStage 1 definitions

Python practice 2

Python question 2. Choose the statement that matches list append.

Q 3ChoiceStage 1 definitions

Python practice 3

Python question 3. Choose the statement that matches dictionary access.

Q 4ChoiceStage 1 definitions

Python practice 4

Python question 4. Choose the statement that matches for loop.

Q 5ChoiceStage 1 definitions

Python practice 5

Python question 5. Choose the statement that matches function definition.

Q 6ChoiceStage 1 definitions

Python practice 6

Python question 6. Choose the statement that matches list append.

Q 7ChoiceStage 1 definitions

Python practice 7

Python question 7. Choose the statement that matches dictionary access.

Q 8ChoiceStage 1 definitions

Python practice 8

Python question 8. Choose the statement that matches for loop.

Q 9ChoiceStage 1 definitions

Python practice 9

Python question 9. Choose the statement that matches function definition.

Q 10ChoiceStage 1 definitions

Python practice 10

Python question 10. Choose the statement that matches list append.

Q 11ChoiceStage 1 definitions

Python practice 11

Python question 11. Choose the statement that matches dictionary access.

Q 12ChoiceStage 1 definitions

Python practice 12

Python question 12. Choose the statement that matches for loop.

Q 13ChoiceStage 1 definitions

Python practice 13

Python question 13. Choose the statement that matches function definition.

Q 14ChoiceStage 1 definitions

Python practice 14

Python question 14. Choose the statement that matches list append.

Q 15ChoiceStage 1 definitions

Python practice 15

Python question 15. Choose the statement that matches dictionary access.

Q 16ChoiceStage 1 definitions

Python practice 16

Python question 16. Choose the statement that matches for loop.

Q 17ChoiceStage 1 definitions

Python practice 17

Python question 17. Choose the statement that matches function definition.

Q 18ChoiceStage 1 definitions

Python practice 18

Python question 18. Choose the statement that matches list append.

Multiple choice

Python practice 1

Q 1Choicenew

Question

Python question 1. Choose the statement that matches function definition.

def add(a, b):
    return a + b

Reference

Patterns for app.py

Python 3python app.py

Recall from memoryRead a small point then write it back without looking

Trace the codeWrite variable values line by line before you run the answer

Type it yourselfCopy less type more and fix one small error at a time

names lists dictionaries strings

Variables

score = 40 + 2
print(score)

Indentation matters
Use descriptive names
Print intermediate values

def parameters return

Functions

def add(a, b):
    return a + b
print(add(2, 3))

Use def to name work
Indent the body
Return the result

for ranges lists dictionaries

Loops

for item in ["a", "b"]:
    print(item)

Loop over values directly
Use enumerate when index matters
Keep loop bodies short

Definition first

What Python means

Python is a programming language for writing exact instructions, often used for automation data scripts and backend APIs. Start with one mental model: input goes through steps and becomes output.

Minimum run factsFile app.pyRun python app.pyHabit Use a tiny script and print the data shape after every transformation

Program

An ordered set of instructions. It reads input, follows rules, and produces output.

Value and variable

A value is data. A variable is the name you use to hold and reuse that data.

Function

A named piece of work. It takes input, does one job, and can return a result.

Runtime

Python 3 is the place that actually runs code from app.py.

First readable code

Variables

names lists dictionaries strings

score = 40 + 2
print(score)

Output 42

Language lineage

Python family tree

See where Python comes from, which languages feel close, and what to learn next.

roots

ABCCUnix tools

currentPythonReadable scripting family

relatives

Ruby Lua Julia R

familyReadable scripting family

best used for

automation, data work, backend APIs, and beginner friendly problem solving

learn next

SQL Bash Go

Zero base path

1Read one rule2Predict output3Type from memory4Run checklist5Repeat with one change

Question bank

Search before practice

Pick a stage or search across the open programming bank. Jump straight to the matching drill.

18 matching questions

Search programming questions

Q 1ChoiceStage 1 definitions

Python practice 1

Python question 1. Choose the statement that matches function definition.

Q 2ChoiceStage 1 definitions

Python practice 2

Python question 2. Choose the statement that matches list append.

Q 3ChoiceStage 1 definitions

Python practice 3

Python question 3. Choose the statement that matches dictionary access.

Q 4ChoiceStage 1 definitions

Python practice 4

Python question 4. Choose the statement that matches for loop.

Q 5ChoiceStage 1 definitions

Python practice 5

Python question 5. Choose the statement that matches function definition.

Q 6ChoiceStage 1 definitions

Python practice 6

Python question 6. Choose the statement that matches list append.

Q 7ChoiceStage 1 definitions

Python practice 7

Python question 7. Choose the statement that matches dictionary access.

Q 8ChoiceStage 1 definitions

Python practice 8

Python question 8. Choose the statement that matches for loop.

Q 9ChoiceStage 1 definitions

Python practice 9

Python question 9. Choose the statement that matches function definition.

Q 10ChoiceStage 1 definitions

Python practice 10

Python question 10. Choose the statement that matches list append.

Q 11ChoiceStage 1 definitions

Python practice 11

Python question 11. Choose the statement that matches dictionary access.

Q 12ChoiceStage 1 definitions

Python practice 12

Python question 12. Choose the statement that matches for loop.

Q 13ChoiceStage 1 definitions

Python practice 13

Python question 13. Choose the statement that matches function definition.

Q 14ChoiceStage 1 definitions

Python practice 14

Python question 14. Choose the statement that matches list append.

Q 15ChoiceStage 1 definitions

Python practice 15

Python question 15. Choose the statement that matches dictionary access.

Q 16ChoiceStage 1 definitions

Python practice 16

Python question 16. Choose the statement that matches for loop.

Q 17ChoiceStage 1 definitions

Python practice 17

Python question 17. Choose the statement that matches function definition.

Q 18ChoiceStage 1 definitions

Python practice 18

Python question 18. Choose the statement that matches list append.

Multiple choice

Python practice 1

Q 1Choicenew

Question

Python question 1. Choose the statement that matches function definition.

def add(a, b):
    return a + b

Reference

Patterns for app.py

Python 3python app.py

Recall from memoryRead a small point then write it back without looking

Trace the codeWrite variable values line by line before you run the answer

Type it yourselfCopy less type more and fix one small error at a time

names lists dictionaries strings

Variables

score = 40 + 2
print(score)

Indentation matters
Use descriptive names
Print intermediate values

def parameters return

Functions

def add(a, b):
    return a + b
print(add(2, 3))

Use def to name work
Indent the body
Return the result

for ranges lists dictionaries

Loops

for item in ["a", "b"]:
    print(item)

Loop over values directly
Use enumerate when index matters
Keep loop bodies short