Theseek()functionsets the position of a file pointerand thetell()functionreturns the current positionof a file pointer. Afile handle or pointer denotes the position from which the file contents will be read or written. File handle is also called as file pointer or cursor. For example, when ...
importos filename ='/tmp/data.txt'withopen(filename,'w')asfh: fh.write("Hello World!\nHow are you today?\nThank you!")print(os.path.getsize(filename))# 42withopen(filename)asfh:print(fh.tell())# 0row = fh.readline()print(row)# Hello World!print(fh.tell())# 13fh.seek(-...
Note that not all file objects are seekable."""passdefseekable(self, *args, **kwargs):#real signature unknown"""True if file supports random-access."""passdeftell(self, *args, **kwargs):#real signature unknown"""Current file position. Can raise OSError for non seekable files."""pa...
GET_STARTUP_INTERVAL = 15 # The unit is second. MAX_TIMES_GET_STARTUP = 120 # Maximum number of retries. # Maximum number of file downloading retries. MAX_TIMES_RETRY_DOWNLOAD = 3 MAX_TIMES_RETRY = 5 DELAY_INTERVAL = 10 # Define the file length. FELMNAMME_127 = 127 FELMNAMME_64 ...
获取当前访问页面 url current_url 获取当前浏览器标题 title 保存图片 get_screenshot_as_png()/get_screenshot_as_file(file) 网页源码 page_source 3、元素的操作 点击操作 element.click() 清空输入框 element.clear() 输入框输入数据 element.send_keys(data) ...
service=Service(r'C:\Program Files (x86)\Microsoft\Edge\Application\msedgedriver.exe')driver=webdriver.Edge(service=service)driver.get('https://www.bilibili.com/')time.sleep(5)#在搜索框输入字符串driver.find_element('xpath','//input[@class="nav-search-input" and @type="text"]').send_ke...
出现场景:用discover方法批量执行py文件,出现随机性的报错(有时a.py报错,有时b.py报错...),共同特点:均是打开新窗口后,切换最新窗口,但定位不到新窗口的元素,超时报错。由于个人项目遇到的是跑一条用例都有1~3个窗口,所以本文针对1~3个窗口的切换随机报错进行处理。
append to the endofthe file regardlessofthe current seek position).In text mode,ifencoding is not specified the encoding used is platformdependent:locale.getpreferredencoding(False)is called togetthe current locale encoding.(For reading and writing raw bytes use binary ...
'get', 'get_cookie', 'get_cookies', 'get_log', 'get_screenshot_as_base64', 'get_screenshot_as_file', 'get_screenshot_as_png', 'get_window_position', 'get_window_size', 'implicitly_wait', 'log_types', 'maximize_window', 'mobile', 'name', 'orientation', 'page_source', 'pr...
{'mac':'', 'esn':''} g_ip_addr = None # File server in which stores the necessary system software, configuration and patch files: # 1) Specify the file server which supports the following format. # (hostname for IPv6 should be placed in brackets) # tftp://hostname # ftp://...