Get last line of file (csv) without reading the entire file into memory

read_last_line_of_file.py

#This works.  Yields the last line of the file as a string without reading the entire file into memory.
#Use a parsing function to separate returned data by commas to select the desired element.

import os

def get_last_line_records_of_file(identifier_data):
    filepath = linux_path+"/"+identifier_data+".csv"
    try:
        with open(filepath,'rb') as f:
            f.seek(-1,os.SEEK_END)
            text = [f.read(1)]
            while text[-1] != '\n'.encode('utf-8') or len(text)==1:
                f.seek(-2, os.SEEK_CUR)
                text.append(f.read(1))
    except Exception as e:
        print("EXCEPTION: ",e)
        pass
    return ''.join([t.decode('utf-8') for t in text[::-1]]).strip()

Ever want to get the last record in a csv dataset without reading in the entire dataset? Dataset too big to fit into memory? Just need to know the date of the last record to know where to append next? You're welcome. Solution not by me but via stack overflow adapted for my needs.