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- Python Part 1 - Getting started with Python
- Python Part 2 - Installing and customising Visual Studio Code
- Python Part 3 - Ranges, loops and formatting
- Python Part 4 - Virtual Environments
- Python Part 5 - Modules
- Python Part 6 - Debugging
- Python Part 7a - Sequences: iterating using for loops
- Python Part 7b - Sequences: slicing
- Python Part 7c - Sequences: other techniques
- Python Part 8 - List Comprehensions
- Python Part 9 - Files and Folders
- Python Part 10 - Sets
- Python Part 11 - Dictionaries
- Python Part 12a - Functions
- Python Part 12b - Advanced Functions
- Python Part 13 - Error-trapping
- Python Part 14a - Working with numbers
- Python Part 14b - Working with Booleans
- Python Part 14c - Working with dates/times
- Python Part 14d - Working with strings
- Python Part 15 - Scraping websites
- Python Part 16a - Linking to SQL Server
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- Python Part 16c - Linking to JSON files
- Python Part 17a- Excel using openpyxl
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- Python Part 18 - NumPy
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Python videos | Python Part 8 - List Comprehensions
Posted by Andy Brown on 15 October 2021
Processing a list usually involves applying a condition to exclude unwanted items and then transforming the result to get what you want. A list comprehension provides an elegant, concise way to combine these two things.
This video has the following accompanying files:
|Listing even squares.py||Python code||Example - listing even squares|
|Listing Y words.py||Python code||Example - listing words containing Y|
|Listing hyperlinks.py||Python code||Example - listing hyperlinks|
|Single line program.py||Python code||Single line program|
Click to download a zipped copy of the above files.
After watching this video, you may like to test your understanding by doing one or more of the following exercises:
|Use text functions, loops and a comprehension to analyse word counts||Standard|
You can also download the answers to each exercise from the links above.
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