81. Pearson Edexcel GCSE (1CP2) Topic 6B Data validation

About this video

EDEXCEL 1CP2 Specification Reference - Topic 6B: 6.2.1 - 6.6.3

This video looks at how you can write programs in Python which implement validation, including length checks, presence checks, range checks and pattern checks.

Don't forget, whenever the blue note icon appears in the corner of the screen, that is your cue to take notes about the content being shown on the current slide.

00:00 Data validation
00:06 Intro
00:11 Input validation
03:03 Implementing validation in Python, what you need for your exams
03:24 Length check
04:53 Presence check
06:32 Range check
08:13 Pattern check
13:18 Programming Language Subset
14:57 Outro

Last updated: 28.10.25

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