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PYTHON CATEGORIES▼
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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
- Python Part 16b - Linking to CSV files
- Python Part 16c - Linking to JSON files
- Python Part 17a- Excel using openpyxl
- Python Part 17b - VBA using pywin32
- Python Part 18 - NumPy
- Python Part 19 - Pandas
- Python Part 20 - Working with Power BI Desktop
- Python Part 21a - Programming using classes
- Python Part 21b - Case study on classes (hangman)
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.
See our full range of Python training resources, or test your knowledge of Python with one of our Python skills assessment tests.
This video has the following accompanying files:
| File name | Type | Description |
|---|---|---|
| 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:
| Exercise | Level |
|---|---|
| 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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