Python爬虫实战之爬淘宝商品并做数据分析，现在赚钱没点技术还真不行！

之前我写了一个爬取淘宝商品的源码，给了一个小伙子学习，本想着后面写成文章分享给大家学习的，但没成想被那个小伙子捷足先登了…今天还是拿出来分享给大伙！

是这样的，之前接了一个金主的单子，他想在淘宝开个小鱼零食的网店，想对目前这个市场上的商品做一些分析，本来手动去做统计和分析也是可以的，这些信息都是对外展示的，只是手动比较麻烦，所以想托我去帮个忙。

一、 项目要求：

具体的要求如下：

1.在淘宝搜索“小鱼零食”，想知道前10页搜索结果的所有商品的销量和金额，按照他划定好的价格区间来统计数量，给我划分了如下的一张价格区间表：

2.这10页搜索结果中，商家都是分布在全国的哪些位置？

3.这10页的商品下面，用户评论最多的是什么？

4.从这些搜索结果中，找出销量最多的10家店铺名字和店铺链接。

从这些要求来看，其实这些需求也不难实现，我们先来看一下项目的效果。

二、效果预览

获取到数据之后做了下分析，最终做成了柱状图，鼠标移动可以看出具体的商品数量。

在10~30元之间的商品最多，越往后越少，看来大多数的产品都是定位为低端市场。

然后我们再来看一下全国商家的分布情况：

可以看出，商家分布大多都是在沿海和长江中下游附近，其中以沿海地区最为密集。

然后再来看一下用户都在商品下面评论了一些什么：

字最大的就表示出现次数最多，口感味道、包装品质、商品分量和保质期是用户评价最多的几个方面，那么在产品包装的时候可以从这几个方面去做针对性阐述，解决大多数人比较关心的问题。

最后就是销量前10的店铺和链接了。

在拿到数据并做了分析之后，我也在想，如果这个东西是我来做的话，我能不能看出来什么东西？或许可以从价格上找到切入点，或许可以从产品地理位置打个差异化，又或许可以以用户为中心，由外而内地做营销。

越往深想，越觉得有门道，算了，对于小鱼零食这一块我是外行，不多想了。

三、爬虫源码

由于源码分了几个源文件，还是比较长的，所以这里就不跟大家一一讲解了，懂爬虫的人看几遍就看懂了，不懂爬虫的说再多也是云里雾里，等以后学会了爬虫再来看就懂了。

import csvimport osimport timeimport wordcloudfrom selenium import webdriverfrom selenium.webdriver.common.by import Bydef tongji():    prices = []    with open("前十页销量和金额.csv", "r", encoding="utf-8", newline="") as f:        fieldnames = ["价格", "销量", "店铺位置"]        reader = csv.DictReader(f, fieldnames=fieldnames)        for index, i in enumerate(reader):            if index != 0:                price = float(i["价格"].replace("¥", ""))                prices.append(price)    DATAS = {"<10": 0, "10~30": 0, "30~50": 0,             "50~70": 0, "70~90": 0, "90~110": 0,             "110~130": 0, "130~150": 0, "150~170": 0, "170~200": 0, }    for price in prices:        if price < 10:            DATAS["<10"] += 1        elif 10 <= price < 30:            DATAS["10~30"] += 1        elif 30 <= price < 50:            DATAS["30~50"] += 1        elif 50 <= price < 70:            DATAS["50~70"] += 1        elif 70 <= price < 90:            DATAS["70~90"] += 1        elif 90 <= price < 110:            DATAS["90~110"] += 1        elif 110 <= price < 130:            DATAS["110~130"] += 1        elif 130 <= price < 150:            DATAS["130~150"] += 1        elif 150 <= price < 170:            DATAS["150~170"] += 1        elif 170 <= price < 200:            DATAS["170~200"] += 1    for k, v in DATAS.items():        print(k, ":", v)def get_the_top_10(url):    top_ten = []    # 获取代理    ip = zhima1()[2][random.randint(0, 399)]    # 运行quicker动作（可以不用管）    os.system(""C:/Program Files/Quicker/QuickerStarter.exe" runaction:5e3abcd2-9271-47b6-8eaf-3e7c8f4935d8")    options = webdriver.ChromeOptions()    # 远程调试Chrome    options.add_experimental_option("debuggerAddress", "127.0.0.1:9222")    options.add_argument(f"--proxy-server={ip}")    driver = webdriver.Chrome(options=options)    # 隐式等待    driver.implicitly_wait(3)    # 打开网页    driver.get(url)    # 点击部分文字包含"销量"的网页元素    driver.find_element(By.PARTIAL_LINK_TEXT, "销量").click()    time.sleep(1)    # 页面滑动到最下方    driver.execute_script("window.scrollTo(0,document.body.scrollHeight)")    time.sleep(1)    # 查找元素    element = driver.find_element(By.ID, "mainsrp-itemlist").find_element(By.XPATH, ".//div[@class="items"]")    items = element.find_elements(By.XPATH, ".//div[@data-category="auctions"]")    for index, item in enumerate(items):        if index == 10:            break        # 查找元素        price = item.find_element(By.XPATH, "./div[2]/div[1]/div[contains(@class,"price")]").text        paid_num_data = item.find_element(By.XPATH, "./div[2]/div[1]/div[@class="deal-cnt"]").text        store_location = item.find_element(By.XPATH, "./div[2]/div[3]/div[@class="location"]").text        store_href = item.find_element(By.XPATH, "./div[2]/div[@class="row row-2 title"]/a").get_attribute(            "href").strip()        # 将数据添加到字典        top_ten.append(            {"价格": price,             "销量": paid_num_data,             "店铺位置": store_location,             "店铺链接": store_href             })    for i in top_ten:        print(i)def get_top_10_comments(url):    with open("排名前十评价.txt", "w+", encoding="utf-8") as f:        pass    # ip = ipidea()[1]    os.system(""C:/Program Files/Quicker/QuickerStarter.exe" runaction:5e3abcd2-9271-47b6-8eaf-3e7c8f4935d8")    options = webdriver.ChromeOptions()    options.add_experimental_option("debuggerAddress", "127.0.0.1:9222")    # options.add_argument(f"--proxy-server={ip}")    driver = webdriver.Chrome(options=options)    driver.implicitly_wait(3)    driver.get(url)    driver.find_element(By.PARTIAL_LINK_TEXT, "销量").click()    time.sleep(1)    element = driver.find_element(By.ID, "mainsrp-itemlist").find_element(By.XPATH, ".//div[@class="items"]")    items = element.find_elements(By.XPATH, ".//div[@data-category="auctions"]")    original_handle = driver.current_window_handle    item_hrefs = []    # 先获取前十的链接    for index, item in enumerate(items):        if index == 10:            break        item_hrefs.append(            item.find_element(By.XPATH, ".//div[2]/div[@class="row row-2 title"]/a").get_attribute("href").strip())    # 爬取前十每个商品评价    for item_href in item_hrefs:        # 打开新标签        # item_href = "https://item.taobao.com/item.htm?id=523351391646&ns=1&abbucket=11#detail"        driver.execute_script(f"window.open("{item_href}")")        # 切换过去        handles = driver.window_handles        driver.switch_to.window(handles[-1])        # 页面向下滑动一部分，直到让评价那两个字显示出来        try:            driver.find_element(By.PARTIAL_LINK_TEXT, "评价").click()        except Exception as e1:            try:                x = driver.find_element(By.PARTIAL_LINK_TEXT, "评价").location_once_scrolled_into_view                driver.find_element(By.PARTIAL_LINK_TEXT, "评价").click()            except Exception as e2:                try:                    # 先向下滑动100，放置评价2个字没显示在屏幕内                    driver.execute_script("var q=document.documentElement.scrollTop=100")                    x = driver.find_element(By.PARTIAL_LINK_TEXT, "评价").location_once_scrolled_into_view                except Exception as e3:                    driver.find_element(By.XPATH, "/html/body/div[6]/div/div[3]/div[2]/div/div[2]/ul/li[2]/a").click()        time.sleep(1)        try:            trs = driver.find_elements(By.XPATH, "//div[@class="rate-grid"]/table/tbody/tr")            for index, tr in enumerate(trs):                if index == 0:                    comments = tr.find_element(By.XPATH, "./td[1]/div[1]/div/div").text.strip()                else:                    try:                        comments = tr.find_element(By.XPATH,                                                   "./td[1]/div[1]/div[@class="tm-rate-fulltxt"]").text.strip()                    except Exception as e:                        comments = tr.find_element(By.XPATH,                                                   "./td[1]/div[1]/div[@class="tm-rate-content"]/div[@class="tm-rate-fulltxt"]").text.strip()                with open("排名前十评价.txt", "a+", encoding="utf-8") as f:                    f.write(comments + "/n")                    print(comments)        except Exception as e:            lis = driver.find_elements(By.XPATH, "//div[@class="J_KgRate_MainReviews"]/div[@class="tb-revbd"]/ul/li")            for li in lis:                comments = li.find_element(By.XPATH, "./div[2]/div/div[1]").text.strip()                with open("排名前十评价.txt", "a+", encoding="utf-8") as f:                    f.write(comments + "/n")                    print(comments)def get_top_10_comments_wordcloud():    file = "排名前十评价.txt"    f = open(file, encoding="utf-8")    txt = f.read()    f.close()    w = wordcloud.WordCloud(width=1000,                            height=700,                            background_color="white",                            font_path="msyh.ttc")    # 创建词云对象，并设置生成图片的属性    w.generate(txt)    name = file.replace(".txt", "")    w.to_file(name + "词云.png")    os.startfile(name + "词云.png")def get_10_pages_datas():    with open("前十页销量和金额.csv", "w+", encoding="utf-8", newline="") as f:        f.write("/ufeff")        fieldnames = ["价格", "销量", "店铺位置"]        writer = csv.DictWriter(f, fieldnames=fieldnames)        writer.writeheader()    infos = []    options = webdriver.ChromeOptions()    options.add_experimental_option("debuggerAddress", "127.0.0.1:9222")    # options.add_argument(f"--proxy-server={ip}")    driver = webdriver.Chrome(options=options)    driver.implicitly_wait(3)    driver.get(url)    # driver.execute_script("window.scrollTo(0,document.body.scrollHeight)")    element = driver.find_element(By.ID, "mainsrp-itemlist").find_element(By.XPATH, ".//div[@class="items"]")    items = element.find_elements(By.XPATH, ".//div[@data-category="auctions"]")    for index, item in enumerate(items):        price = item.find_element(By.XPATH, "./div[2]/div[1]/div[contains(@class,"price")]").text        paid_num_data = item.find_element(By.XPATH, "./div[2]/div[1]/div[@class="deal-cnt"]").text        store_location = item.find_element(By.XPATH, "./div[2]/div[3]/div[@class="location"]").text        infos.append(            {"价格": price,             "销量": paid_num_data,             "店铺位置": store_location})    try:        driver.find_element(By.PARTIAL_LINK_TEXT, "下一").click()    except Exception as e:        driver.execute_script("window.scrollTo(0,document.body.scrollHeight)")        driver.find_element(By.PARTIAL_LINK_TEXT, "下一").click()    for i in range(9):        time.sleep(1)        driver.execute_script("window.scrollTo(0,document.body.scrollHeight)")        element = driver.find_element(By.ID, "mainsrp-itemlist").find_element(By.XPATH, ".//div[@class="items"]")        items = element.find_elements(By.XPATH, ".//div[@data-category="auctions"]")        for index, item in enumerate(items):            try:                price = item.find_element(By.XPATH, "./div[2]/div[1]/div[contains(@class,"price")]").text            except Exception:                time.sleep(1)                driver.execute_script("window.scrollTo(0,document.body.scrollHeight)")                price = item.find_element(By.XPATH, "./div[2]/div[1]/div[contains(@class,"price")]").text            paid_num_data = item.find_element(By.XPATH, "./div[2]/div[1]/div[@class="deal-cnt"]").text            store_location = item.find_element(By.XPATH, "./div[2]/div[3]/div[@class="location"]").text            infos.append(                {"价格": price,                 "销量": paid_num_data,                 "店铺位置": store_location})        try:            driver.find_element(By.PARTIAL_LINK_TEXT, "下一").click()        except Exception as e:            driver.execute_script("window.scrollTo(0,document.body.scrollHeight)")            driver.find_element(By.PARTIAL_LINK_TEXT, "下一").click()        # 一页结束        for info in infos:            print(info)        with open("前十页销量和金额.csv", "a+", encoding="utf-8", newline="") as f:            fieldnames = ["价格", "销量", "店铺位置"]            writer = csv.DictWriter(f, fieldnames=fieldnames)            for info in infos:                writer.writerow(info)if __name__ == "__main__":    url = "https://s.taobao.com/search?q=%E5%B0%8F%E9%B1%BC%E9%9B%B6%E9%A3%9F&imgfile=&commend=all&ssid=s5-e&search_type=item&sourceId=tb.index&spm=a21bo.21814703.201856-taobao-item.1&ie=utf8&initiative_id=tbindexz_20170306&bcoffset=4&ntoffset=4&p4ppushleft=2%2C48&s=0"    # get_10_pages_datas()    # tongji()    # get_the_top_10(url)    # get_top_10_comments(url)    get_top_10_comments_wordcloud()

通过上面的代码，我们能获取到想要获取的数据，然后再Bar和Geo进行柱状图和地理位置分布展示，这两块大家可以去摸索一下。

结语

项目源码我都可以分享给大家，但也请大家尊重一下原开发者，千万不要未经允许就擅自把别人的代码编成你的故事，那个小伙子想找他聊聊他都不理我了…诶。