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Input

  • input: The original input text or data
  • output: The date string to validate
  • expectedOutput: The expected output to compare against.
  • Any of the input variables (input, output, expectedOutput) can be marked as optional.
  • The returned value from the validate function can be a boolean, string, or a number.

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Output

  • Result: Boolean (true or false) | string | number

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Interpretation

Assuming this evaluator returns a boolean
  • true: The string is a valid date
  • false: The string is not a valid date
This evaluator requires a function named validate.

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Example

from datetime import datetime

def validate(input, output, expectedOutput):
    date_str = str(output)
    formats = [
        '%Y-%m-%d', '%m/%d/%Y', '%d/%m/%Y', '%Y/%m/%d', '%Y-%d-%m'
    ]
    for fmt in formats:
        try:
            datetime.strptime(date_str, fmt)
            return True
        except ValueError:
            continue
    return False