def bool_from_string(subject, strict=False, default=False): """Interpret a string as a boolean. A case-insensitive match is performed such that strings matching 't', 'true', 'on', 'y', 'yes', or '1' are considered True and, when `strict=False`, anything else returns the value specified by 'default'. Useful for JSON-decoded stuff and config file parsing. If `strict=True`, unrecognized values, including None, will raise a ValueError which is useful when parsing values passed in from an API call. Strings yielding False are 'f', 'false', 'off', 'n', 'no', or '0'. """ if not isinstance(subject, six.string_types): subject = str(subject) lowered = subject.strip().lower() if lowered in TRUE_STRINGS: return True elif lowered in FALSE_STRINGS: return False elif strict: acceptable = ', '.join("'%s'" % s for s in sorted(TRUE_STRINGS + FALSE_STRINGS)) msg = _("Unrecognized value '%(val)s', acceptable values are:" " %(acceptable)s") % { 'val': subject, 'acceptable': acceptable } raise ValueError(msg) else: return default
def _post(self, url, body=None): try: _body = self.client.post(url, params=body) return _body except Exception: message = _("Connection server error") raise exc.HTTPInternalServerError(message=message)
def _action(self, url, id=None): try: _body = self.client.get(url, params={"id": json.dumps(id)}).json() return _body except Exception: message = _("Connection server error") raise exc.HTTPInternalServerError(message=message)
def string_to_bytes(text, unit_system='IEC', return_int=False): """Converts a string into an float representation of bytes. The units supported for IEC :: Kb(it), Kib(it), Mb(it), Mib(it), Gb(it), Gib(it), Tb(it), Tib(it) KB, KiB, MB, MiB, GB, GiB, TB, TiB The units supported for SI :: kb(it), Mb(it), Gb(it), Tb(it) kB, MB, GB, TB Note that the SI unit system does not support capital letter 'K' :param text: String input for bytes size conversion. :param unit_system: Unit system for byte size conversion. :param return_int: If True, returns integer representation of text in bytes. (default: decimal) :returns: Numerical representation of text in bytes. :raises ValueError: If text has an invalid value. """ try: base, reg_ex = UNIT_SYSTEM_INFO[unit_system] except KeyError: msg = _('Invalid unit system: "%s"') % unit_system raise ValueError(msg) match = reg_ex.match(text) if match: magnitude = float(match.group(1)) unit_prefix = match.group(2) if match.group(3) in ['b', 'bit']: magnitude /= 8 else: msg = _('Invalid string format: %s') % text raise ValueError(msg) if not unit_prefix: res = magnitude else: res = magnitude * pow(base, UNIT_PREFIX_EXPONENT[unit_prefix]) if return_int: return int(math.ceil(res)) return res
def _list(self, url): objlist = [] try: body = self.client.get(url).json() for obj in body: data = self.resource_class(self, obj) objlist.append(data) return objlist except Exception: message = _("Connection server error") raise exc.HTTPInternalServerError(message=message)
def _get(self, url, id=0): try: body = self.client.get(url, params={"id": id}).json() if body: data = body.pop() obj = self.resource_class(self, data) return obj return body except Exception: message = _("Connection server error") raise exc.HTTPInternalServerError(message=message)