def follow(file):
    file.seek(0,2)
    while True:
        line = file.readline()
        if not line:
            time.sleep(0.1)
            continue
        line = str(line).replace('"', '\"')
        line = str(line).replace("'", "\'")
        if re.findall(TO_REGEX_OFFICIAL, line) != []:
            strings = re.findall(TO_REGEX_OFFICIAL, line)
        elif re.findall(TO_REGEX_POE_XYZ, line) != []:
            strings = re.findall(TO_REGEX_POE_XYZ, line)
        else:
            continue
        yield strings

def filewriter(line):
    dictionary = {}
    dictionary['name'] = line[0][0]
    dictionary['item_to_buy'] = line[0][1]
    dictionary['currency'] = line[0][2]
    dictionary['league'] = line[0][3]
    with open('logs.json', 'a+') as f:
        f.write(json.dumps(f))
        f.write('\n')


with open(logfile) as fp:
    for line in follow(fp):
        filewriter(line) # writing to .json endlessly