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How to use is_full_url method in localstack

Best Python code snippet using localstack_python

auto_scraper.py

Source:auto_scraper.py

1import json2from collections import defaultdict3from urllib.parse import urljoin, urlparse4import requests5from bs4 import BeautifulSoup6from autoscraper.utils import unique, get_random_str7class AutoScraper(object):8    request_headers = {9        'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/537.36 \10            (KHTML, like Gecko) Chrome/84.0.4147.135 Safari/537.36'11    }12    def __init__(self, stack_list=None, url=None):13        self.stack_list = stack_list14        self.url = url15    def save(self, file_path):16        data = dict(url=self.url, stack_list=self.stack_list)17        with open(file_path, 'w') as f:18            json.dump(data, f)19    def load(self, file_path):20        with open(file_path, 'r') as f:21            data = json.load(f)22        # for backward compatibility23        if isinstance(data, list):24            self.stack_list = data25            return26        self.stack_list = data['stack_list']27        self.url = data['url']28    @classmethod29    def _get_soup(cls, url=None, html=None, request_args=None):30        request_args = request_args or {}31        if html:32            return BeautifulSoup(html, 'lxml')33        headers = dict(cls.request_headers)34        if url:35            headers['Host'] = urlparse(url).netloc36        user_headers = request_args.pop('headers', {})37        headers.update(user_headers)38        html = requests.get(url, headers=headers, **request_args).text39        return BeautifulSoup(html, 'lxml')40    @staticmethod41    def _get_valid_attrs(item):42        return {43            k: v if v != [] else '' for k, v in item.attrs.items() if k in {'class', 'style'}44        }45    def _child_has_text(self, child, text):46        child_text = child.getText().strip()47        if text == child_text:48            child.wanted_attr = None49            return True50        for key, value in child.attrs.items():51            if not isinstance(value, str):52                continue53            value = value.strip()54            if text == value:55                child.wanted_attr = key56                return True57            if key in {'href', 'src'}:58                full_url = urljoin(self.url, value)59                if text == full_url:60                    child.wanted_attr = key61                    child.is_full_url = True62                    return True63        return False64    def _get_children(self, soup, text):65        text = text.strip()66        children = reversed(soup.findChildren())67        children = list(filter(lambda x: self._child_has_text(x, text), children))68        return children69    def build(self, url=None, wanted_list=None, html=None, request_args=None):70        self.url = url71        soup = self._get_soup(url=url, html=html, request_args=request_args)72        result_list = []73        stack_list = []74        for wanted in wanted_list:75            children = self._get_children(soup, wanted)76            for child in children:77                result, stack = self._get_result_for_child(child, soup)78                result_list += result79                stack_list.append(stack)80        result_list = unique(result_list)81        if all(w in result_list for w in wanted_list):82            self.stack_list = unique(stack_list)83            return result_list84        return None85    @classmethod86    def _build_stack(cls, child):87        content = [(child.name, cls._get_valid_attrs(child))]88        parent = child89        while True:90            grand_parent = parent.findParent()91            if not grand_parent:92                break93            children = grand_parent.findAll(parent.name, cls._get_valid_attrs(parent),94                                                         recursive=False)95            for i, c in enumerate(children):96                if c == parent:97                    content.insert(98                        0, (grand_parent.name, cls._get_valid_attrs(grand_parent), i))99                    break100            if grand_parent.name == 'html':101                break102            parent = grand_parent103        wanted_attr = getattr(child, 'wanted_attr', None)104        is_full_url = getattr(child, 'is_full_url', False)105        stack = dict(content=content, wanted_attr=wanted_attr, is_full_url=is_full_url)106        stack['stack_id'] = 'rule_' + get_random_str(4)107        return stack108    def _get_result_for_child(self, child, soup):109        stack = self._build_stack(child)110        result = self._get_result_with_stack(stack, soup)111        return result, stack112    def _fetch_result_from_child(self, child, wanted_attr, is_full_url):113        if wanted_attr is None:114            return child.getText().strip()115        if wanted_attr not in child.attrs:116            return None117        if is_full_url:118            return urljoin(self.url, child.attrs[wanted_attr])119        return child.attrs[wanted_attr]120    def _get_result_with_stack(self, stack, soup):121        parents = [soup]122        for _, item in enumerate(stack['content']):123            children = []124            for parent in parents:125                children += parent.findAll(item[0], item[1], recursive=False)126            parents = children127        wanted_attr = stack['wanted_attr']128        is_full_url = stack['is_full_url']129        result = [self._fetch_result_from_child(i, wanted_attr, is_full_url) for i in parents]130        result = list(filter(lambda x: x, result))131        return result132    def _get_result_with_stack_index_based(self, stack, soup):133        p = soup.findChildren(recursive=False)[0]134        stack_content = stack['content']135        for index, item in enumerate(stack_content[:-1]):136            content = stack_content[index + 1]137            p = p.findAll(content[0], content[1], recursive=False)138            if not p:139                return []140            idx = min(len(p) - 1, item[2])141            p = p[idx]142        result = [self._fetch_result_from_child(p, stack['wanted_attr'], stack['is_full_url'])]143        result = list(filter(lambda x: x, result))144        return result145    def _get_result_by_func(self, func, url, html, soup, request_args, grouped):146        if url:147            self.url = url148        if not soup:149            soup = self._get_soup(url=url, html=html, request_args=request_args)150        result_list = []151        grouped_result = defaultdict(list)152        for stack in self.stack_list:153            result = func(stack, soup)154            if not grouped:155                result_list += result156                continue157            stack_id = stack['stack_id']158            grouped_result[stack_id] += result159        return dict(grouped_result) if grouped else unique(result_list)160    def get_result_similar(self, url=None, html=None, soup=None, request_args=None, grouped=False):161        func = self._get_result_with_stack162        return self._get_result_by_func(func, url, html, soup, request_args, grouped)163    def get_result_exact(self, url=None, html=None, soup=None, request_args=None, grouped=False):164        func = self._get_result_with_stack_index_based165        return self._get_result_by_func(func, url, html, soup, request_args, grouped)166    def get_result(self, url=None, html=None, request_args=None):167        soup = self._get_soup(url=url, html=html, request_args=request_args)168        similar = self.get_result_similar(soup=soup)169        exact = self.get_result_exact(soup=soup)170        return similar, exact171    def remove_rules(self, rules):172        self.stack_list = list(filter(lambda x: x['stack_id'] not in rules, self.stack_list))173    def keep_rules(self, rules):174        self.stack_list = list(filter(lambda x: x['stack_id'] in rules, self.stack_list))175    def generate_python_code(self):176        # deprecated...

code_template.py

Source:code_template.py

1from urllib.parse import urljoin, urlparse2import requests3from bs4 import BeautifulSoup4class GeneratedAutoScraper(object):5    request_headers = {6        'User-Agent': 'Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; \7            Googlebot/2.1; +http://www.google.com/bot.html) Safari/537.36'8    }9    def __init__(self):10        self.url = ''11        self.stack_list = "{STACK_LIST}"12    @staticmethod13    def _get_soup(url=None, html=None, request_args=None):14        if html:15            return BeautifulSoup(html, 'lxml')16        request_args = request_args if request_args else {}17        headers = dict(GeneratedAutoScraper.request_headers)18        if url:19            headers['Host'] = urlparse(url).netloc20        headers = request_args.get('headers', headers)21        html = requests.get(url, headers=headers, **request_args).text22        return BeautifulSoup(html, 'lxml')23    @staticmethod24    def unique(item_list):25        unique_list = []26        for item in item_list:27            if item not in unique_list:28                unique_list.append(item)29        return unique_list30    def _fetch_result_from_child(self, child, wanted_attr, is_full_url):31        if wanted_attr is None:32            return child.getText().strip().rstrip()33        if wanted_attr not in child.attrs:34            return None35        if is_full_url:36            return urljoin(self.url, child.attrs[wanted_attr])37        return child.attrs[wanted_attr]38    def _get_result_with_stack(self, stack, soup):39        parents = [soup]40        for _, item in enumerate(stack['content']):41            children = []42            for parent in parents:43                children += parent.findAll(item[0], item[1], recursive=False)44            parents = children45        wanted_attr = stack['wanted_attr']46        is_full_url = stack['is_full_url']47        result = [self._fetch_result_from_child(i, wanted_attr, is_full_url) for i in parents]48        result = list(filter(lambda x: x, result))49        return result50    def _get_result_with_stack_index_based(self, stack, soup):51        p = soup.findChildren(recursive=False)[0]52        stack_content = stack['content']53        for index, item in enumerate(stack_content[:-1]):54            p = p.findAll(stack_content[index + 1][0], recursive=False)[item[2]]55        result = self._fetch_result_from_child(p, stack['wanted_attr'], stack['is_full_url'])56        return result57    def get_result_similar(self, url=None, html=None, soup=None, request_args=None):58        if url:59            self.url = url60        if not soup:61            soup = self._get_soup(url=url, html=html, request_args=request_args)62        result = []63        for stack in self.stack_list:64            result += self._get_result_with_stack(stack, soup)65        return self.unique(result)66    def get_result_exact(self, url=None, html=None, soup=None, request_args=None):67        if url:68            self.url = url69        if not soup:70            soup = self._get_soup(url=url, html=html, request_args=request_args)71        result = []72        for stack in self.stack_list:73            try:74                result.append(self._get_result_with_stack_index_based(stack, soup))75            except IndexError:76                continue77        return self.unique(result)78    def get_result(self, url=None, html=None, request_args=None):79        soup = self._get_soup(url=url, html=html, request_args=request_args)80        similar = self.get_result_similar(soup=soup)81        exact = self.get_result_exact(soup=soup)...

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