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How to use to_yaml method in pandera

Best Python code snippet using pandera_python

models_courses.py

Source:models_courses.py

...59        formatted_errors = []60        for error in expected:61            formatted_errors.append('%s%s' % (ERROR_HEADER, error))62        self.assertEqual(formatted_errors, actual)63    def to_yaml(self, adict):64        """Convert a dict to YAML."""65        return yaml.safe_dump(adict)66    def test_empty_string(self):67        """Validation should fail on an empty string."""68        workflow = Workflow('')69        workflow.validate(self.errors)70        self.assert_matching_errors(['missing key: grader.'], self.errors)71    def test_invalid_string(self):72        """Validation should fail for invalid YAML strings."""73        workflow = Workflow('(')74        workflow.validate(self.errors)75        self.assertTrue(self.errors)76    def test_not_dict(self):77        """Validation should fail for non-dict YAML strings."""78        yaml_strs = ['- first\n- second', 'grader']79        for yaml_str in yaml_strs:80            self.errors = []81            workflow = Workflow(yaml_str)82            workflow.validate(self.errors)83            self.assert_matching_errors(84                ['expected the YAML representation of a dict'], self.errors)85    def test_missing_grader_key(self):86        """Validation should fail for missing grader key."""87        workflow = Workflow(self.to_yaml({'not_grader': 'human'}))88        workflow.validate(self.errors)89        self.assert_matching_errors(['missing key: grader.'], self.errors)90    def test_auto_grader(self):91        """Validation should pass for an auto-graded assessment."""92        workflow = Workflow(self.to_yaml({'grader': 'auto'}))93        workflow.validate(self.errors)94        self.assertFalse(self.errors)95    def test_empty_submission_date_in_grader(self):96        """Validation should pass for empty submission date."""97        workflow = Workflow(self.to_yaml(98            {'grader': 'auto', 'submission_due_date': ''}))99        workflow.validate(self.errors)100        self.assertFalse(self.errors)101    def test_invalid_human_grader(self):102        """Validation should fail for invalid human grading specifications."""103        workflow = Workflow(self.to_yaml({'grader': 'human'}))104        workflow.validate(self.errors)105        self.assert_matching_errors([106            '%s matcher, review_min_count, review_window_mins, '107            'submission_due_date, review_due_date.' %108            MISSING_KEYS_PREFIX], self.errors)109        self.errors = []110        workflow = Workflow(self.to_yaml(111            {'grader': 'human', 'matcher': 'peer'}112        ))113        workflow.validate(self.errors)114        self.assert_matching_errors([115            '%s review_min_count, review_window_mins, submission_due_date, '116            'review_due_date.' % MISSING_KEYS_PREFIX], self.errors)117    def test_invalid_review_min_count(self):118        """Validation should fail for bad review_min_count values."""119        workflow_dict = self.valid_human_review_workflow_dict120        workflow_dict['review_min_count'] = 'test_string'121        workflow = Workflow(self.to_yaml(workflow_dict))122        workflow.validate(self.errors)123        self.assert_matching_errors(124            ['review_min_count should be an integer.'], self.errors)125        self.errors = []126        workflow_dict['review_min_count'] = -1127        workflow = Workflow(self.to_yaml(workflow_dict))128        workflow.validate(self.errors)129        self.assert_matching_errors(130            ['review_min_count should be a non-negative integer.'], self.errors)131        self.errors = []132        workflow_dict['review_min_count'] = 0133        workflow = Workflow(self.to_yaml(workflow_dict))134        workflow.validate(self.errors)135        self.assertFalse(self.errors)136    def test_invalid_review_window_mins(self):137        """Validation should fail for bad review_window_mins values."""138        workflow_dict = self.valid_human_review_workflow_dict139        workflow_dict['review_window_mins'] = 'test_string'140        workflow = Workflow(self.to_yaml(workflow_dict))141        workflow.validate(self.errors)142        self.assert_matching_errors(143            ['review_window_mins should be an integer.'], self.errors)144        self.errors = []145        workflow_dict['review_window_mins'] = -1146        workflow = Workflow(self.to_yaml(workflow_dict))147        workflow.validate(self.errors)148        self.assert_matching_errors(149            ['review_window_mins should be a non-negative integer.'],150            self.errors)151        self.errors = []152        workflow_dict['review_window_mins'] = 0153        workflow = Workflow(self.to_yaml(workflow_dict))154        workflow.validate(self.errors)155        self.assertFalse(self.errors)156    def test_invalid_date(self):157        """Validation should fail for invalid dates."""158        workflow_dict = self.valid_human_review_workflow_dict159        workflow_dict['submission_due_date'] = 'test_string'160        workflow = Workflow(self.to_yaml(workflow_dict))161        workflow.validate(self.errors)162        self.assert_matching_errors([DATE_FORMAT_ERROR], self.errors)163        self.errors = []164        workflow_dict = self.valid_human_review_workflow_dict165        workflow_dict['review_due_date'] = 'test_string'166        workflow = Workflow(self.to_yaml(workflow_dict))167        workflow.validate(self.errors)168        self.assert_matching_errors([DATE_FORMAT_ERROR], self.errors)169    def test_submission_date_after_review_date_fails(self):170        """Validation should fail if review date precedes submission date."""171        workflow_dict = self.valid_human_review_workflow_dict172        workflow_dict['submission_due_date'] = '2013-03-14 12:00'173        workflow_dict['review_due_date'] = '2013-03-13 12:00'174        workflow = Workflow(self.to_yaml(workflow_dict))175        workflow.validate(self.errors)176        self.assert_matching_errors(177            ['submission due date should be earlier than review due date.'],178            self.errors)179    def test_multiple_errors(self):180        """Validation should fail with multiple errors when appropriate."""181        workflow_dict = self.valid_human_review_workflow_dict182        workflow_dict['submission_due_date'] = '2013-03-14 12:00'183        workflow_dict['review_due_date'] = '2013-03-13 12:00'184        workflow_dict['review_window_mins'] = 'hello'185        workflow = Workflow(self.to_yaml(workflow_dict))186        workflow.validate(self.errors)187        self.assert_matching_errors(188            ['review_window_mins should be an integer; submission due date '189             'should be earlier than review due date.'],190            self.errors)191    def test_valid_human_grader(self):192        """Validation should pass for valid human grading specifications."""193        workflow_dict = self.valid_human_review_workflow_dict194        workflow = Workflow(self.to_yaml(workflow_dict))195        workflow.validate(self.errors)...

basics.py

Source:basics.py

...34    try:35        return isinstance(obj, basestring)36    except NameError:37        return isinstance(obj, str)38def to_yaml(obj):39    """ Simplify yaml representation for pretty printing """40    # Is there a better way to do this by adding a representation with yaml.Dumper?41    # Ordered dict: http://pyyaml.org/ticket/29#comment:1142    if obj is None or isstring(obj):43        out = str(obj)44    elif type(obj) in [int, float, bool]:45        return obj46    elif hasattr(obj, 'to_yaml'):47        out = obj.to_yaml()48    elif isinstance(obj, etree._Element):49    	out = etree.tostring(obj, pretty_print = True)50    elif type(obj) == dict:51        out = {}52        for (var, value) in obj.items():53            out[str(var)] = to_yaml(value)54    elif hasattr(obj, 'tolist'):55        # For numpy objects56        out = to_yaml(obj.tolist())57    elif isinstance(obj, collections.Iterable):58        out = [to_yaml(item) for item in obj]59    else:60        out = str(obj)61    return out62class SelectiveReflection(object):63	def get_refl_vars(self):64		return list(vars(self).keys())65class YamlReflection(SelectiveReflection):66	def to_yaml(self):67		raw = dict((var, getattr(self, var)) for var in self.get_refl_vars())68		return to_yaml(raw)69		70	def __str__(self):...

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