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Under utils/common.py, 

TIMESTAMP_FORMAT_MILLIS = '%Y-%m-%dT%H:%M:%S.%fZ'

The %f produces time with microseconds, for example: 2020-03-18T19:43:18.115783Z.


However, when interacting the AWS s3 and sns apis, I receive DateTimes like this:

2020-03-02T22:32:13.240Z
i.e. milliseconds. 

This seems like a simple change to the utils. TIMESTAMP_FORMAT_MILLIS is named as if it should be millis as well. This is seems like a simple change. Is there a reason it should be microseconds?
if line in [None, '', b'']:
                                break
                            if not (line and line.strip()) and self.is_killed():
                                break
                            line = convert_line(line)
                            if filter_line(line):
                                continue
                            outstream.write(line)
                            outstream.flush()
                self.process.wait()
            else:
                self.process.communicate()
        except Exception as e:
            if self.process and not self.quiet:
                LOG.warning('Shell command error "%s": %s' % (e, self.cmd))
        if self.process and not self.quiet and self.process.returncode != 0:
            LOG.warning('Shell command exit code "%s": %s' % (self.process.returncode, self.cmd))
    def is_killed(self):
        if not self.process:
            return True
        if INFRA_STOPPED:
            return True
        
        
        
        import psutil
        return not psutil.pid_exists(self.process.pid)
    def stop(self, quiet=False):