NapsterTemplate.py

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import re
 
class NapsterTemplate:
    def date(self, filename):
        """Sets date column given the filename (it contains the date)
           For example Napster_GYROstream_20220731m_stream_.txt
        Args:
            filename (str): current filename
        Returns: date_str (str)
        """
        date = re.findall(r'_20\d{6}', filename)[0]
        date = date.replace("_", "")
        date_str = date[:4]+"-"+date[4:6]+"-"+date[6:]
        # df["date_from_file"] = date_str
        return date_str