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How to use _validate_error method in pandera

Best Python code snippet using pandera_python

pipeline_options_validator.py

Source:pipeline_options_validator.py

...117  def is_full_string_match(self, pattern, string):118    """Returns True if the pattern matches the whole string."""119    pattern = '^%s$' % pattern120    return re.search(pattern, string) is not None121  def _validate_error(self, err, *args):122    return [err % args]123  def validate_gcs_path(self, view, arg_name):124    """Validates a GCS path against gs://bucket/object URI format."""125    arg = getattr(view, arg_name, None)126    if arg is None:127      return self._validate_error(self.ERR_MISSING_GCS_PATH, arg_name)128    match = re.match(self.GCS_URI, arg, re.DOTALL)129    if match is None:130      return self._validate_error(self.ERR_INVALID_GCS_PATH, arg, arg_name)131    scheme = match.group('SCHEME')132    bucket = match.group('BUCKET')133    gcs_object = match.group('OBJECT')134    if ((scheme is None) or (scheme.lower() != self.GCS_SCHEME) or135        (bucket is None)):136      return self._validate_error(self.ERR_INVALID_GCS_PATH, arg, arg_name)137    if not self.is_full_string_match(self.GCS_BUCKET, bucket):138      return self._validate_error(self.ERR_INVALID_GCS_BUCKET, arg, arg_name)139    if gcs_object is None or '\n' in gcs_object or '\r' in gcs_object:140      return self._validate_error(self.ERR_INVALID_GCS_OBJECT, arg, arg_name)141    return []142  def validate_cloud_options(self, view):143    """Validates job_name and project arguments."""144    errors = []145    if (view.job_name and146        not self.is_full_string_match(self.JOB_PATTERN, view.job_name)):147      errors.extend(148          self._validate_error(self.ERR_INVALID_JOB_NAME, view.job_name))149    project = view.project150    if project is None:151      errors.extend(self._validate_error(self.ERR_MISSING_OPTION, 'project'))152    else:153      if self.is_full_string_match(self.PROJECT_NUMBER_PATTERN, project):154        errors.extend(155            self._validate_error(self.ERR_INVALID_PROJECT_NUMBER, project))156      elif not self.is_full_string_match(self.PROJECT_ID_PATTERN, project):157        errors.extend(158            self._validate_error(self.ERR_INVALID_PROJECT_ID, project))159    if view.update:160      if not view.job_name:161        errors.extend(162            self._validate_error(163                'Existing job name must be provided when updating a pipeline.'))164    if view.transform_name_mapping:165      if not view.update or not self.options.view_as(StandardOptions).streaming:166        errors.append(167            'Transform name mapping option is only useful when '168            '--update and --streaming is specified')169      for _, (key, value) in enumerate(view.transform_name_mapping.items()):170        if not isinstance(key, (str, unicode)) \171            or not isinstance(value, (str, unicode)):172          errors.extend(173              self._validate_error(174                  self.ERR_INVALID_TRANSFORM_NAME_MAPPING, key, value))175          break176    if view.region is None and self.is_service_runner():177      default_region = self.runner.get_default_gcp_region()178      if default_region is None:179        errors.extend(self._validate_error(self.ERR_MISSING_OPTION, 'region'))180      else:181        view.region = default_region182    return errors183  def validate_worker_region_zone(self, view):184    """Validates Dataflow worker region and zone arguments are consistent."""185    errors = []186    if view.zone and (view.worker_region or view.worker_zone):187      errors.extend(188          self._validate_error(189              'Cannot use deprecated flag --zone along with worker_region or '190              'worker_zone.'))191    if self.options.view_as(DebugOptions).lookup_experiment('worker_region')\192        and (view.worker_region or view.worker_zone):193      errors.extend(194          self._validate_error(195              'Cannot use deprecated experiment worker_region along with '196              'worker_region or worker_zone.'))197    if view.worker_region and view.worker_zone:198      errors.extend(199          self._validate_error(200              'worker_region and worker_zone are mutually exclusive.'))201    if view.zone:202      _LOGGER.warning(203          'Option --zone is deprecated. Please use --worker_zone instead.')204      view.worker_zone = view.zone205      view.zone = None206    return errors207  def validate_optional_argument_positive(self, view, arg_name):208    """Validates that an optional argument (if set) has a positive value."""209    arg = getattr(view, arg_name, None)210    if arg is not None and int(arg) <= 0:211      return self._validate_error(self.ERR_INVALID_NOT_POSITIVE, arg, arg_name)212    return []213  def validate_test_matcher(self, view, arg_name):214    """Validates that on_success_matcher argument if set.215    Validates that on_success_matcher is unpicklable and is instance216    of `hamcrest.core.base_matcher.BaseMatcher`.217    """218    # This is a test only method and requires hamcrest219    from hamcrest.core.base_matcher import BaseMatcher220    pickled_matcher = view.on_success_matcher221    errors = []222    try:223      matcher = pickler.loads(pickled_matcher)224      if not isinstance(matcher, BaseMatcher):225        errors.extend(226            self._validate_error(227                self.ERR_INVALID_TEST_MATCHER_TYPE, matcher, arg_name))228    except:  # pylint: disable=bare-except229      errors.extend(230          self._validate_error(231              self.ERR_INVALID_TEST_MATCHER_UNPICKLABLE,232              pickled_matcher,233              arg_name))...

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