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March 19, 2024 18:03
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F-string examples from Indently on YouTube
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| # scientific notion with number of decimals after period | |
| big_number: int = 1_620_000_000 | |
| print(f'{big_number:.2e}') | |
| # format dates on the fly | |
| from datetime import datetime | |
| now: datetime = datetime.now() | |
| print(f'{now:%d.%m.%y}') | |
| # nesting f-strings | |
| number: float = 1000000.1234567 | |
| spec: str = ',.2f' | |
| print(f'{number:{spec}') | |
| # r before a string escapes escape characters, and this can be used in tandem with f-strings | |
| print(rf'{}') | |
| # debug with f-strings | |
| a: float = 0.1 | |
| b: float = 0.2 | |
| print(f'{a + b = :.1f}') | |
| # | |
| from datatime import datetime, date | |
| banana: str = '🍌' | |
| name: str = 'Bob' | |
| today: date = datetime.now().date() | |
| print(f'[{today!s}] {name!s} says: {banana!s}') # string representation per variable | |
| print(f'[{today!r}] {name!r} says: {banana!r}') # representation of each variable | |
| print(f'[{today!a}] {name!a} says: {banana!a}') # ASCII representation of each variable |
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