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daft.functions.file_exists#

file_exists #

file_exists(file: Expression) -> Expression

Returns whether the file exists.

Parameters:

Name Type Description Default
file File Expression

expression to evaluate.

 required

Returns:

Name Type Description
Expression Boolean Expression

expression indicating whether the file exists
Source code in daft/functions/file_.py 
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def file_exists(file: Expression) -> Expression:
    """Returns whether the file exists.

    Args:
        file (File Expression): expression to evaluate.

    Returns:
        Expression (Boolean Expression): expression indicating whether the file exists
    """
    return file._eval_expressions("file_exists")