Catch USRP timestamp

import re

path = 'date.txt'

with open(path) as f:

    for line in f:

        # catch USRP timestamp by regular expression
        pattern = re.compile( r'\b(\d+\.\d+)\b' )
        result = re.search(pattern, line)

        if result:

            timestamp_str = result.groups(1)[0]

            print("\n")
            print( type(timestamp_str) )
            print(f"string result {timestamp_str}" )

            # convert from string to float
            timestamp_float = float(timestamp_str)

            print("\n")
            print( type(timestamp_float) )
            print(f" float result {timestamp_float:.9f}" )