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→Command Line Argument to be supported
=== Command Line Argument to be supported ===
* Your Python script must support one command line argument only: date in the following format with correct values in YYYY, MM, and DD should be considered as valid input data:
** <code>YYYYMMDD</code>** <code>YYYY/MM/DD</code>** <code>YYYY-MM-DD</code>** <code>YYYY.MM.DD. </code> * If there are no argument, more than one argument, or an invalid year, month, or day, your script should display the appropriate usage message, error code, and exit.
=== Documentation ===
