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How to use __delimiter_gen method in yandex-tank

Best Python code snippet using yandex-tank

screen.py

Source:screen.py

...112        self.default_final = '{{{:}:>{len}}}'113        self.last_reshaped = time.time()114        self.old_shape = {}115        self.reshape_delay = reshape_delay116    def __delimiter_gen(self):117        for d in self.delimiters:118            yield d119        while True:120            yield self.delimiters[-1]121    def __prepare(self, data):122        prepared = []123        shape = {}124        for line in data:125            new = {}126            for f in line:127                if f in self.template:128                    new[f] = self.template[f]['tpl'].format(line[f])129                    if f not in shape:130                        shape[f] = len(new[f])131                    else:132                        shape[f] = max(shape[f], len(new[f]))133            prepared.append(new)134        return (prepared, shape)135    def __update_shape(self, shape):136        def change_shape():137            self.last_reshaped = time.time()138            self.old_shape = shape139        if set(shape.keys()) != set(self.old_shape.keys()):140            change_shape()141            return shape142        else:143            for f in shape:144                if shape[f] > self.old_shape[f]:145                    change_shape()146                    return shape147                elif shape[f] < self.old_shape[f]:148                    if time.time() > (self.last_reshaped + self.reshape_delay):149                        change_shape()150                        return shape151        return self.old_shape152    def render_table(self, data, fields):153        prepared, shape = self.__prepare(data)154        headers = {}155        for f in shape:156            if 'header' in self.template[f]:157                headers[f] = self.template[f]['header']158                shape[f] = max(shape[f], len(headers[f]))159            else:160                headers[f] = ''161        shape = self.__update_shape(shape)162        has_headers = any(headers.values())163        delimiter_gen = self.__delimiter_gen()164        row_tpl = ''165        for num, field in enumerate(fields):166            if 'final' in self.template[field]:167                final = self.template[field]['final']168            else:169                final = self.default_final170            row_tpl += final.format(field, len=shape[field])171            if num < len(fields) - 1:172                row_tpl += next(delimiter_gen)173        result = []174        if has_headers:175            result.append(176                (row_tpl.format(**headers),))177        for line in prepared:...

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