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How to use write_sep method in pytest-benchmark

Best Python code snippet using pytest-benchmark

terminal.py

Source:terminal.py

...169        else:170            fill = ''171        line = str(line)172        self._tw.write("\r" + line + fill, **markup)173    def write_sep(self, sep, title=None, **markup):174        self.ensure_newline()175        self._tw.sep(sep, title, **markup)176    def section(self, title, sep="=", **kw):177        self._tw.sep(sep, title, **kw)178    def line(self, msg, **kw):179        self._tw.line(msg, **kw)180    def pytest_internalerror(self, excrepr):181        for line in py.builtin.text(excrepr).split("\n"):182            self.write_line("INTERNALERROR> " + line)183        return 1184    def pytest_logwarning(self, code, fslocation, message, nodeid):185        warnings = self.stats.setdefault("warnings", [])186        warning = WarningReport(code=code, fslocation=fslocation,187                                message=message, nodeid=nodeid)188        warnings.append(warning)189    def pytest_plugin_registered(self, plugin):190        if self.config.option.traceconfig:191            msg = "PLUGIN registered: %s" % (plugin,)192            # XXX this event may happen during setup/teardown time193            #     which unfortunately captures our output here194            #     which garbles our output if we use self.write_line195            self.write_line(msg)196    def pytest_deselected(self, items):197        self.stats.setdefault('deselected', []).extend(items)198    def pytest_runtest_logstart(self, nodeid, location):199        # ensure that the path is printed before the200        # 1st test of a module starts running201        if self.showlongtestinfo:202            line = self._locationline(nodeid, *location)203            self.write_ensure_prefix(line, "")204        elif self.showfspath:205            fsid = nodeid.split("::")[0]206            self.write_fspath_result(fsid, "")207    def pytest_runtest_logreport(self, report):208        rep = report209        res = self.config.hook.pytest_report_teststatus(report=rep)210        cat, letter, word = res211        self.stats.setdefault(cat, []).append(rep)212        self._tests_ran = True213        if not letter and not word:214            # probably passed setup/teardown215            return216        if self.verbosity <= 0:217            if not hasattr(rep, 'node') and self.showfspath:218                self.write_fspath_result(rep.nodeid, letter)219            else:220                self._tw.write(letter)221        else:222            if isinstance(word, tuple):223                word, markup = word224            else:225                if rep.passed:226                    markup = {'green': True}227                elif rep.failed:228                    markup = {'red': True}229                elif rep.skipped:230                    markup = {'yellow': True}231            line = self._locationline(rep.nodeid, *rep.location)232            if not hasattr(rep, 'node'):233                self.write_ensure_prefix(line, word, **markup)234                # self._tw.write(word, **markup)235            else:236                self.ensure_newline()237                if hasattr(rep, 'node'):238                    self._tw.write("[%s] " % rep.node.gateway.id)239                self._tw.write(word, **markup)240                self._tw.write(" " + line)241                self.currentfspath = -2242    def pytest_collection(self):243        if not self.isatty and self.config.option.verbose >= 1:244            self.write("collecting ... ", bold=True)245    def pytest_collectreport(self, report):246        if report.failed:247            self.stats.setdefault("error", []).append(report)248        elif report.skipped:249            self.stats.setdefault("skipped", []).append(report)250        items = [x for x in report.result if isinstance(x, pytest.Item)]251        self._numcollected += len(items)252        if self.isatty:253            # self.write_fspath_result(report.nodeid, 'E')254            self.report_collect()255    def report_collect(self, final=False):256        if self.config.option.verbose < 0:257            return258        errors = len(self.stats.get('error', []))259        skipped = len(self.stats.get('skipped', []))260        if final:261            line = "collected "262        else:263            line = "collecting "264        line += str(self._numcollected) + " item" + ('' if self._numcollected == 1 else 's')265        if errors:266            line += " / %d errors" % errors267        if skipped:268            line += " / %d skipped" % skipped269        if self.isatty:270            self.rewrite(line, bold=True, erase=True)271            if final:272                self.write('\n')273        else:274            self.write_line(line)275    def pytest_collection_modifyitems(self):276        self.report_collect(True)277    @pytest.hookimpl(trylast=True)278    def pytest_sessionstart(self, session):279        self._sessionstarttime = time.time()280        if not self.showheader:281            return282        self.write_sep("=", "test session starts", bold=True)283        verinfo = platform.python_version()284        msg = "platform %s -- Python %s" % (sys.platform, verinfo)285        if hasattr(sys, 'pypy_version_info'):286            verinfo = ".".join(map(str, sys.pypy_version_info[:3]))287            msg += "[pypy-%s-%s]" % (verinfo, sys.pypy_version_info[3])288        msg += ", pytest-%s, py-%s, pluggy-%s" % (289               pytest.__version__, py.__version__, pluggy.__version__)290        if self.verbosity > 0 or self.config.option.debug or \291           getattr(self.config.option, 'pastebin', None):292            msg += " -- " + str(sys.executable)293        self.write_line(msg)294        lines = self.config.hook.pytest_report_header(295            config=self.config, startdir=self.startdir)296        self._write_report_lines_from_hooks(lines)297    def _write_report_lines_from_hooks(self, lines):298        lines.reverse()299        for line in flatten(lines):300            self.write_line(line)301    def pytest_report_header(self, config):302        inifile = ""303        if config.inifile:304            inifile = " " + config.rootdir.bestrelpath(config.inifile)305        lines = ["rootdir: %s, inifile:%s" % (config.rootdir, inifile)]306        plugininfo = config.pluginmanager.list_plugin_distinfo()307        if plugininfo:308            lines.append(309                "plugins: %s" % ", ".join(_plugin_nameversions(plugininfo)))310        return lines311    def pytest_collection_finish(self, session):312        if self.config.option.collectonly:313            self._printcollecteditems(session.items)314            if self.stats.get('failed'):315                self._tw.sep("!", "collection failures")316                for rep in self.stats.get('failed'):317                    rep.toterminal(self._tw)318                return 1319            return 0320        lines = self.config.hook.pytest_report_collectionfinish(321            config=self.config, startdir=self.startdir, items=session.items)322        self._write_report_lines_from_hooks(lines)323    def _printcollecteditems(self, items):324        # to print out items and their parent collectors325        # we take care to leave out Instances aka ()326        # because later versions are going to get rid of them anyway327        if self.config.option.verbose < 0:328            if self.config.option.verbose < -1:329                counts = {}330                for item in items:331                    name = item.nodeid.split('::', 1)[0]332                    counts[name] = counts.get(name, 0) + 1333                for name, count in sorted(counts.items()):334                    self._tw.line("%s: %d" % (name, count))335            else:336                for item in items:337                    nodeid = item.nodeid338                    nodeid = nodeid.replace("::()::", "::")339                    self._tw.line(nodeid)340            return341        stack = []342        indent = ""343        for item in items:344            needed_collectors = item.listchain()[1:]  # strip root node345            while stack:346                if stack == needed_collectors[:len(stack)]:347                    break348                stack.pop()349            for col in needed_collectors[len(stack):]:350                stack.append(col)351                # if col.name == "()":352                #    continue353                indent = (len(stack) - 1) * "  "354                self._tw.line("%s%s" % (indent, col))355    @pytest.hookimpl(hookwrapper=True)356    def pytest_sessionfinish(self, exitstatus):357        outcome = yield358        outcome.get_result()359        self._tw.line("")360        summary_exit_codes = (361            EXIT_OK, EXIT_TESTSFAILED, EXIT_INTERRUPTED, EXIT_USAGEERROR,362            EXIT_NOTESTSCOLLECTED)363        if exitstatus in summary_exit_codes:364            self.config.hook.pytest_terminal_summary(terminalreporter=self,365                                                     exitstatus=exitstatus)366            self.summary_errors()367            self.summary_failures()368            self.summary_warnings()369            self.summary_passes()370        if exitstatus == EXIT_INTERRUPTED:371            self._report_keyboardinterrupt()372            del self._keyboardinterrupt_memo373        self.summary_deselected()374        self.summary_stats()375    def pytest_keyboard_interrupt(self, excinfo):376        self._keyboardinterrupt_memo = excinfo.getrepr(funcargs=True)377    def pytest_unconfigure(self):378        if hasattr(self, '_keyboardinterrupt_memo'):379            self._report_keyboardinterrupt()380    def _report_keyboardinterrupt(self):381        excrepr = self._keyboardinterrupt_memo382        msg = excrepr.reprcrash.message383        self.write_sep("!", msg)384        if "KeyboardInterrupt" in msg:385            if self.config.option.fulltrace:386                excrepr.toterminal(self._tw)387            else:388                self._tw.line("to show a full traceback on KeyboardInterrupt use --fulltrace", yellow=True)389                excrepr.reprcrash.toterminal(self._tw)390    def _locationline(self, nodeid, fspath, lineno, domain):391        def mkrel(nodeid):392            line = self.config.cwd_relative_nodeid(nodeid)393            if domain and line.endswith(domain):394                line = line[:-len(domain)]395                values = domain.split("[")396                values[0] = values[0].replace('.', '::')  # don't replace '.' in params397                line += "[".join(values)398            return line399        # collect_fspath comes from testid which has a "/"-normalized path400        if fspath:401            res = mkrel(nodeid).replace("::()", "")  # parens-normalization402            if nodeid.split("::")[0] != fspath.replace("\\", nodes.SEP):403                res += " <- " + self.startdir.bestrelpath(fspath)404        else:405            res = "[location]"406        return res + " "407    def _getfailureheadline(self, rep):408        if hasattr(rep, 'location'):409            fspath, lineno, domain = rep.location410            return domain411        else:412            return "test session"  # XXX?413    def _getcrashline(self, rep):414        try:415            return str(rep.longrepr.reprcrash)416        except AttributeError:417            try:418                return str(rep.longrepr)[:50]419            except AttributeError:420                return ""421    #422    # summaries for sessionfinish423    #424    def getreports(self, name):425        values = []426        for x in self.stats.get(name, []):427            if not hasattr(x, '_pdbshown'):428                values.append(x)429        return values430    def summary_warnings(self):431        if self.hasopt("w"):432            all_warnings = self.stats.get("warnings")433            if not all_warnings:434                return435            grouped = itertools.groupby(all_warnings, key=lambda wr: wr.get_location(self.config))436            self.write_sep("=", "warnings summary", yellow=True, bold=False)437            for location, warnings in grouped:438                self._tw.line(str(location) or '<undetermined location>')439                for w in warnings:440                    lines = w.message.splitlines()441                    indented = '\n'.join('  ' + x for x in lines)442                    self._tw.line(indented)443                self._tw.line()444            self._tw.line('-- Docs: http://doc.pytest.org/en/latest/warnings.html')445    def summary_passes(self):446        if self.config.option.tbstyle != "no":447            if self.hasopt("P"):448                reports = self.getreports('passed')449                if not reports:450                    return451                self.write_sep("=", "PASSES")452                for rep in reports:453                    msg = self._getfailureheadline(rep)454                    self.write_sep("_", msg)455                    self._outrep_summary(rep)456    def print_teardown_sections(self, rep):457        for secname, content in rep.sections:458            if 'teardown' in secname:459                self._tw.sep('-', secname)460                if content[-1:] == "\n":461                    content = content[:-1]462                self._tw.line(content)463    def summary_failures(self):464        if self.config.option.tbstyle != "no":465            reports = self.getreports('failed')466            if not reports:467                return468            self.write_sep("=", "FAILURES")469            for rep in reports:470                if self.config.option.tbstyle == "line":471                    line = self._getcrashline(rep)472                    self.write_line(line)473                else:474                    msg = self._getfailureheadline(rep)475                    markup = {'red': True, 'bold': True}476                    self.write_sep("_", msg, **markup)477                    self._outrep_summary(rep)478                    for report in self.getreports(''):479                        if report.nodeid == rep.nodeid and report.when == 'teardown':480                            self.print_teardown_sections(report)481    def summary_errors(self):482        if self.config.option.tbstyle != "no":483            reports = self.getreports('error')484            if not reports:485                return486            self.write_sep("=", "ERRORS")487            for rep in self.stats['error']:488                msg = self._getfailureheadline(rep)489                if not hasattr(rep, 'when'):490                    # collect491                    msg = "ERROR collecting " + msg492                elif rep.when == "setup":493                    msg = "ERROR at setup of " + msg494                elif rep.when == "teardown":495                    msg = "ERROR at teardown of " + msg496                self.write_sep("_", msg)497                self._outrep_summary(rep)498    def _outrep_summary(self, rep):499        rep.toterminal(self._tw)500        for secname, content in rep.sections:501            self._tw.sep("-", secname)502            if content[-1:] == "\n":503                content = content[:-1]504            self._tw.line(content)505    def summary_stats(self):506        session_duration = time.time() - self._sessionstarttime507        (line, color) = build_summary_stats_line(self.stats)508        msg = "%s in %.2f seconds" % (line, session_duration)509        markup = {color: True, 'bold': True}510        if self.verbosity >= 0:511            self.write_sep("=", msg, **markup)512        if self.verbosity == -1:513            self.write_line(msg, **markup)514    def summary_deselected(self):515        if 'deselected' in self.stats:516            self.write_sep("=", "%d tests deselected" % (517                len(self.stats['deselected'])), bold=True)518def repr_pythonversion(v=None):519    if v is None:520        v = sys.version_info521    try:522        return "%s.%s.%s-%s-%s" % v523    except (TypeError, ValueError):524        return str(v)525def flatten(values):526    for x in values:527        if isinstance(x, (list, tuple)):528            for y in flatten(x):529                yield y530        else:...

cross_validation.py

Source:cross_validation.py

1# coding=utf-82""""3    Cross Validation fo Recommender Algorithms4"""5# Â© 2018. Case Recommender (MIT License)6from collections import defaultdict7import numpy as np8import shutil9from caserec.utils.split_database import SplitDatabase10__author__ = 'removed for double blind review'11class CrossValidation(object):12    def __init__(self, input_file, recommender, dir_folds, k_folds=10, header=None, sep='\t', write_predictions=False,13                 write_sep='\t', recommender_verbose=False, evaluation_in_fold_verbose=True, metrics=None,14                 as_table=False, table_sep='\t', del_folds=False, random_seed=None):15        """16        Cross Validation17        This strategy is responsible to divide the database in K folds, in which each fold contain a train and a test18        set. Its also responsible to run and evaluate the recommender results in each fold and calculate the mean and19        the standard deviation.20        Usage:21            >> rec = MostPopular(as_binary=True)22            >> CrossValidation(db, rec, fold_d, evaluation_in_fold_verbose=False).compute()23        :param input_file: Database file24        :type input_file: str25        :param recommender: Initialize the recommender algorithm. e.g.: MostPopular(as_binary=True)26        :type recommender: class27        :param dir_folds: Directory to write folds (train and test files)28        :type dir_folds: str29        :param k_folds: How much folds the strategy will divide30        :type k_folds: int, default 1031        :param header: Skip header line32        :type header: int, default None33        :param sep: Delimiter for input files34        :type sep: str, default '\t'35        :param write_predictions: Write the recommender predictions in each fold36        :type write_predictions: bool, default False37        :param write_sep: Delimiter for output files38        :type write_sep: str, default '\t'39        :param recommender_verbose: Print header of recommender in each fold40        :type recommender_verbose: bool, default False41        :param evaluation_in_fold_verbose: Print evaluation of recommender in each fold42        :type evaluation_in_fold_verbose: bool, default True43        :param metrics: List of evaluation metrics44        :type metrics: str, default None45        :param as_table: Print the evaluation results as table46        :type as_table: bool, default False47        :param table_sep: Delimiter for print results (only work with verbose=True and as_table=True)48        :type table_sep: str, default '\t'49        :param del_folds: Delete folds after evaluation50        :type del_folds: bool, default False51        :param random_seed: Random seed52        :type random_seed: int, default None53        """54        self.input_file = input_file55        self.recommender = recommender56        self.dir_folds = dir_folds57        self.k_folds = k_folds58        self.header = header59        self.sep = sep60        self.write_predictions = write_predictions61        self.write_sep = write_sep62        self.recommender_verbose = recommender_verbose63        self.evaluation_in_fold_verbose = evaluation_in_fold_verbose64        self.metrics = metrics65        self.as_table = as_table66        self.table_sep = table_sep67        self.del_folds = del_folds68        self.random_seed = random_seed69        # internal vars70        self.folds_results = defaultdict(list)71    def generate_folds(self):72        """73        Method to generate folds with k fold cross validation74        """75        SplitDatabase(input_file=self.input_file, n_splits=self.k_folds, dir_folds=self.dir_folds,76                      sep_read=self.sep, header=self.header).kfoldcrossvalidation(random_state=self.random_seed)77    def execute_algorithm(self):78        """79        Method to run recommender algorithm in k folds80        """81        for k in range(self.k_folds):82            train_file = self.dir_folds + 'folds/%d/train.dat' % k83            test_file = self.dir_folds + 'folds/%d/test.dat' % k84            self.recommender.train_file = train_file85            self.recommender.test_file = test_file86            if self.write_predictions:87                output_file = self.dir_folds + 'folds/%d/output.dat' % k88                self.recommender.output_file = output_file89            self.recommender.compute(verbose=self.recommender_verbose,90                                     verbose_evaluation=self.evaluation_in_fold_verbose, metrics=self.metrics)91            if self.metrics is None:92                self.metrics = self.recommender.evaluation_results.keys()93            for metric in self.metrics:94                self.folds_results[metric.upper()].append(self.recommender.evaluation_results[metric.upper()])95    def evaluate(self, verbose=True):96        """97        Method to evaluate folds results and generate mean and standard deviation98        :param verbose: If True, print evaluation results99        :type verbose: bool, default True100        """101        mean_dict = defaultdict(dict)102        std_dict = defaultdict(dict)103        for metric in self.metrics:104            mean_dict[metric.upper()] = np.mean(self.folds_results[metric.upper()])105            std_dict[metric.upper()] = np.std(self.folds_results[metric.upper()])106        if verbose:107            if self.as_table:108                header = ''109                values_mean = ''110                values_std = ''111                for metric in self.metrics:112                    header += metric.upper() + self.table_sep113                    values_mean += str(round(mean_dict[metric.upper()], 6)) + self.table_sep114                    values_std += str(round(std_dict[metric.upper()], 6)) + self.table_sep115                print('Metric%s%s' % (self.table_sep, header))116                print('Mean%s%s' % (self.table_sep, values_mean))117                print('STD%s%s' % (self.table_sep, values_std))118            else:119                evaluation_mean = 'Mean:: '120                evaluation_std = 'STD:: '121                for metrics in self.metrics:122                    evaluation_mean += "%s: %.6f " % (metrics.upper(), mean_dict[metrics.upper()])123                    evaluation_std += "%s: %.6f " % (metrics.upper(), std_dict[metrics.upper()])124                print(evaluation_mean)125                print(evaluation_std)126    def erase_folds(self):127        """128        Method to delete folds after evaluation129        """130        folds = self.dir_folds + 'folds/'131        shutil.rmtree(folds)132    def compute(self, verbose=True):133        """134        Method to run the cross validation135        :param verbose: If True, print header136        :type verbose: bool, default True137        """138        if verbose:139            print("[Case Recommender: Cross Validation]\n")140            print("Database:: %s \nRecommender Algorithm:: %s | K Folds: %d\n" % (self.input_file,141                                                                                  self.recommender.recommender_name,142                                                                                  self.k_folds))143        self.generate_folds()144        self.execute_algorithm()145        self.evaluate(verbose)146        if self.del_folds:...

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