def str_to_time(s, format='%Y-%m-%d %H:%M:%S.OPTFRAC'):
'''
Convert string representing UTC time to floating point system time.
:param s: string representing UTC time
:param format: time string format
:returns: system time stamp as floating point value
Uses the semantics of :py:func:`time.strptime` but allows for fractional
seconds. If the format ends with ``'.FRAC'``, anything after a dot is
interpreted as fractional seconds. If the format ends with ``'.OPTFRAC'``,
the fractional part, including the dot is made optional. The latter has the
consequence, that the time strings and the format may not contain any other
dots. If the format ends with ``'.xFRAC'`` where x is 1, 2, or 3, it is
ensured, that exactly that number of digits are present in the fractional
seconds.
'''
if util_ext is not None:
try:
t, tfrac = util_ext.stt(s, format)
except util_ext.UtilExtError, e:
raise TimeStrError('%s, string=%s, format=%s' %
(str(e), s, format))
return t + tfrac
def str_to_time(s, format='%Y-%m-%d %H:%M:%S.OPTFRAC'):
'''
Convert string representing UTC time to floating point system time.
:param s: string representing UTC time
:param format: time string format
:returns: system time stamp as floating point value
Uses the semantics of :py:func:`time.strptime` but allows for fractional
seconds. If the format ends with ``'.FRAC'``, anything after a dot is
interpreted as fractional seconds. If the format ends with ``'.OPTFRAC'``,
the fractional part, including the dot is made optional. The latter has the
consequence, that the time strings and the format may not contain any other
dots. If the format ends with ``'.xFRAC'`` where x is 1, 2, or 3, it is
ensured, that exactly that number of digits are present in the fractional
seconds.
'''
if util_ext is not None:
try:
t, tfrac = util_ext.stt(s, format)
except util_ext.UtilExtError, e:
raise TimeStrError(
'%s, string=%s, format=%s' % (str(e), s, format))
return t+tfrac