cn-py-serv/server/file_read.py

import logging

log = logging.getLogger(__name__)


def fileiter(filename):
    log.debug("Open file %s to byte-read" % filename)

    with open(filename, "rb") as f:
        while True:
            file_data = f.read(1024)

            yield file_data

            if len(file_data) >= 1024:
                log.debug("File size greeter 1024 bytes, yield data. Continue to read")
            else:
                log.debug("File size lower 1024 bytes, yield data. Break to read")
                break