DateStringModifier (class)

Similar to DateModPipeline except all input and output dates are strings instead of datetime.date.

Specifying the date format

The constructor of the DateStringModifier takes a date_format argument as an optional second argument. This argument is a string that specifies the format of the output date string using Python's date format codes. If not provided, the default format is %Y-%m-%d.

In addition, both the modify method and the get_date_list method both take an additional input_format optional argument that specifies the format of the input date string. If not provided, the default format is the same as the output format (i.e., the value of the date_format argument from the constructor).