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# pywws-reprocess

Regenerate hourly and daily summary data

    usage: pywws-reprocess.py [options] data_dir
    options are:
     -h | --help     display this help
     -u | --update   update status on old data to include bits from wind_dir byte
     -v | --verbose  increase number of informative messages
    data_dir is the root directory of the weather data

This program recreates the calibrated, hourly, daily and monthly summary data that is created by the `pywws.Process` module. It should be run whenever you upgrade to a newer version of pywws (if the summary data format has changed), change your calibration module or alter your pressure offset.

The `-u` (or `--update`) option is a special case. It should be used when upgrading from any pywws version earlier than 14.02.dev1143. Unlike normal reprocessing, the `-u` option changes your raw data. You are advised to backup your data before using the `-u` option.

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