Article Python Fundamentals
Nested Loops in Python
Nested loops let you work with 2D data like grids, tables, and images. Learn how they work, avoid common pitfalls, and write cleaner Python code with real examples.
8 results
Article Python Fundamentals
Nested loops let you work with 2D data like grids, tables, and images. Learn how they work, avoid common pitfalls, and write cleaner Python code with real examples.
Challenge
Scan a radar grid stored as a list of strings with a loop inside a loop, print the row and column of every # with enumerate(), then turn the loops around to find the columns that are clear all the way…
Quiz
Free beginner quiz on Python for loops: 15 questions on lists, strings, range(), enumerate(), totals and break, with instant answers.
Example
Dictionaries can contain other dictionaries. Useful for complex data structures.
Quiz
…questions on keys and values, get(), in, pop(), update(), loops and nested dictionaries. Instant answers.
Challenge
Build the station's weekly shift rota: three shifts a day, the crew taken in turn so nobody works two shifts in a row, with a check that proves it, then plan around days off while keeping the work…
Quiz
…packing and unpacking, count(), index(), slicing and nested tuples. Instant answers.
Quiz
…Leaving a function early with return : inside an if , a loop or nested loops Using a returned value straight away, and returning one of two values with a conditional expression How it works 15…