在很多情况下，Python 包的函数没有源码是因为它们可能依赖于第三方库或者系统库，这些库的函数不是由 Python 编写的，而是由 C、C++、Java 等其他语言编写的。因此，这些函数的“源码”实际上是其他语言的代码，而不是 Python 代码。
此外，有些 Python 包的函数可能是由 Python 编写的，但是它们的源码可能没有被包含在 Python 包的发行版中。这种情况通常发生在一些商业软件或者闭源软件中，它们可能只提供了 Python 接口，而没有提供源码。
如果你想要查看某个 Python 包的源码，你可以查看该包的 GitHub 仓库或者其它代码托管平台。很多开源的 Python 包都会在 GitHub 等平台上提供源码，你可以通过查看源码来了解函数是如何实现的。
base_url = "https://down.chinaz.com" # 采集的网址
save_path = "D:\\Freedom\\Sprider\\ChinaZ\\"
sprider_count = 88 # 采集数量
sprider_start_count=0# 从第几个序号开始 直接改数量即可 会做除法操作正 正在采集第32页的第16个资源 debug
word_content_list = []
folder_name = ""
page_end_number=0
max_pager=15 #每页的数量
haved_sprider_count =0 # 已经采集的数量
page_count = 1 # 每个栏目开始业务content="text/html; charset=gb2312"def sprider(self,title_name="NET"):
"""
采集
PHP https://down.chinaz.com/class/572_5_1.htm
NET https://down.chinaz.com/class/572_4_1.htm
ASP https://down.chinaz.com/class/572_3_1.htm
Pytyhon https://down.chinaz.com/class/604_572_1.htm
:return:
"""
if title_name == "PHP":
self.folder_name = "PHP源码"
self.second_column_name = "572_5"
elif title_name == "Go":
self.folder_name = "Go源码"
self.second_column_name = "606_572"
elif title_name == "NET":
self.folder_name = "NET源码"
self.second_column_name = "572_4"
elif title_name == "ASP":
self.folder_name = "ASP源码"
self.second_column_name = "572_3"
elif title_name == "Python":
self.folder_name = "Python源码"
self.second_column_name = "604_572"
#
first_column_name = title_name # 一级目录
second_folder_name = str(self.sprider_count) + "个" + self.folder_name #二级目录
merchant=int(self.sprider_start_count) //int(self.max_pager)+1 #起始页码用于效率采集
self.file_path = self.save_path + os.sep + "Code" + os.sep + first_column_name + os.sep + second_folder_name
self.save_path = self.save_path+ os.sep + "Code" + os.sep+first_column_name+os.sep + second_folder_name+ os.sep + self.folder_name
BaseFrame().debug("开始采集ChinaZCode"+self.folder_name+"...")
sprider_url = (self.base_url + "/class/{0}_1.htm".format(self.second_column_name))
down_path="D:\\Freedom\\Sprider\\ChinaZ\\Code\\"+first_column_name+"\\"+second_folder_name+"\\Temp\\"
if os.path.exists(down_path) is True:
shutil.rmtree(down_path)
if os.path.exists(down_path) is False:
os.makedirs(down_path)
if os.path.exists(self.save_path ) is True:
shutil.rmtree(self.save_path )
if os.path.exists(self.save_path ) is False:
os.makedirs(self.save_path )
chrome_options = webdriver.ChromeOptions()
diy_prefs ={'profile.default_content_settings.popups': 0,
'download.default_directory':'{0}'.format(down_path)}
# 添加路径到selenium配置中
chrome_options.add_experimental_option('prefs', diy_prefs)
chrome_options.add_argument('--headless') #隐藏浏览器
# 实例化chrome浏览器时，关联忽略证书错误
driver = webdriver.Chrome(options=chrome_options)
driver.set_window_size(1280, 800) # 分辨率 1280*800
# driver.get方法将定位在给定的URL的网页，get接受url可以是任何网址，此处以百度为例
driver.get(sprider_url)
# content = driver.page_source
# print(content)
div_elem = driver.find_element(By.CLASS_NAME, "main") # 列表页面 核心内容
element_list = div_elem.find_elements(By.CLASS_NAME, 'item')
laster_pager_ul = driver.find_element(By.CLASS_NAME, "el-pager")
laster_pager_li =laster_pager_ul.find_elements(By.CLASS_NAME, 'number')
laster_pager_url = laster_pager_li[len(laster_pager_li) - 1]
page_end_number = int(laster_pager_url.text)
self.page_count=merchant
while self.page_count <= int(page_end_number): # 翻完停止
try:
if self.page_count == 1:
self.sprider_detail(driver,element_list,self.page_count,page_end_number,down_path)
pass
else:
if self.haved_sprider_count == self.sprider_count:
BaseFrame().debug("采集到达数量采集停止...")
BaseFrame().debug("开始写文章...")
self.builder_word(self.folder_name, self.save_path, self.word_content_list)
BaseFrame().debug("文件编写完毕，请到对应的磁盘查看word文件和下载文件！")
break
#(self.base_url + "/sort/{0}/{1}/".format(url_index, self.page_count))
#http://soft.onlinedown.net/sort/177/2/
next_url = self.base_url + "/class/{0}_{1}.htm".format(self.second_column_name, self.page_count)
driver.get(next_url)
div_elem = driver.find_element(By.CLASS_NAME, "main") # 列表页面 核心内容
element_list = div_elem.find_elements(By.CLASS_NAME, 'item')
self.sprider_detail( driver, element_list, self.page_count, page_end_number, down_path)
pass
#print(self.page_count)
self.page_count = self.page_count + 1 # 页码增加1
except Exception as e:
print("sprider()执行过程出现错误:" + str(e))
sleep(10)
def sprider_detail(self, driver,element_list,page_count,max_page,down_path):
"""
采集明细页面
:param driver:
:param element_list:
:param page_count:
:param max_page:
:param down_path:
:return:
"""
index = 0
element_array=[]
element_length=len(element_list)
for element in element_list:
url_A_obj = element.find_element(By.CLASS_NAME, 'name-text')
next_url = url_A_obj.get_attribute("href")
coder_title = url_A_obj.get_attribute("title")
e=coder_title+"$"+ next_url
element_array.append(e)
pass
self.sprider_start_index = int(self.sprider_start_count) % int(self.max_pager)
index=self.sprider_start_index
while index < element_length:
if os.path.exists(down_path) is False:
os.makedirs(down_path)
if self.haved_sprider_count == self.sprider_count:
BaseFrame().debug("采集到达数量采集停止...")
break
#element = element_list[index]
element=element_array[index]
time.sleep(1)
index = index + 1
sprider_info="正在采集第"+str(page_count)+"页的第"+str(index)+"个资源，共"+str(max_page)+"页资源"
BaseFrame().debug(sprider_info)
next_url=element.split("$")[1]
coder_title=element.split("$")[0]
# next_url = element.find_element(By.TAG_NAME, 'a').get_attribute("href")
# coder_title =element.find_element(By.TAG_NAME, 'img').get_attribute("title")
driver.get(next_url) # 请求明细页面
try:
# codeEntity = SpriderEntity() # 下载过的资源不再下载
# codeEntity.sprider_base_url = self.base_url
# codeEntity.create_datetime = SpriderTools.get_current_datetime()
# codeEntity.sprider_url = next_url
# codeEntity.sprider_pic_title = coder_title
# codeEntity.sprider_pic_index = str(index)
# codeEntity.sprider_pager_index = page_count
# codeEntity.sprider_type = "code"
# if SpriderAccess().query_sprider_entity_by_urlandindex(next_url, str(index)) is None:
# SpriderAccess().save_sprider(codeEntity)
# else:
# BaseFrame().debug(coder_title+next_url + "数据采集过因此跳过")
# continue
if SeleniumTools.judeg_element_isexist(driver, "CLASS_NAME", "download-item") == 3:
driver.back()
BaseFrame().debug(coder_title+"不存在源码是soft因此跳过哦....")
continue
print("准备点击下载按钮...")
driver.find_element(By.CLASS_NAME, "download-item").click() #下载源码
result,message=SpriderTools.judge_file_exist(True,240,1,down_path,"zip|rar|gz|tgz")#判断源码
if result is True:
sprider_content = [coder_title, self.save_path + os.sep +"image"+ os.sep + coder_title + ".jpg"] # 采集成功的记录
self.word_content_list.append(sprider_content) # 增加到最终的数组
self.haved_sprider_count = self.haved_sprider_count + 1
BaseFrame().debug("已经采集完成第" + str(self.haved_sprider_count) + "个")
time.sleep(1)
driver.back()
coder_title = str(coder_title).replace("/", "") #去掉windows不识别的字符
files = os.listdir(down_path)
srcFile = down_path + os.sep + files[0]
file_ext = os.path.splitext(srcFile)[-1]
dstFile = down_path + os.sep + coder_title + file_ext
os.rename(srcFile, dstFile)
srcFile = dstFile
dstFile = self.save_path + os.sep + coder_title + file_ext
shutil.move(srcFile, dstFile) # 移动文件
else:
BaseFrame().error("检测下载文件出错可能原因是等待时间不够已经超时，再等待70秒...")
time.sleep(70)
#shutil.rmtree(down_path) #如果没下载完是无法删除的
#使用数组append记录文件名字 移动的时候过滤
pass
except Exception as e:
#shutil.rmtree(down_path)
BaseFrame().error("sprider_detail()执行过程出现错误：" + str(e))
#driver.get(sprider_url)
#driver.quit()
if(int(page_count)==int(max_page)):
self.builder_word(self.folder_name,self.save_path,self.word_content_list)
BaseFrame().debug("文件编写完毕，请到对应的磁盘查看word文件和下载文件！")
