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Sourcery Sourcery

Use-Or-For-Fallback

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Sourcery rule id: use-or-for-fallback

Section titled “Sourcery rule id: use-or-for-fallback”

Description

Section titled “Description”

Use or for providing a fallback value

Before

Section titled “Before”
pattern = provided_pattern
if not pattern:
    pattern = pattern_from_config

After

Section titled “After”
pattern = provided_pattern or pattern_from_config

Explanation

Section titled “Explanation”

Thanks to the flexibility of Python’s or operator, you can use a single assignment statement, even if a variable can retrieve its value from various sources. This is shorter and easier to read than using multiple assignments with if not conditions.