Selenium3+python3自动化（二十）--查看selenium API
前言
前面都是通过官网或他人博客学些selenium，介绍的一些selenium api使用方法，那么selenium的api到底有多少呢？本篇介绍如何查看完整的selenium api
pydoc是Python自带的模块，主要用于python模块中自动生成文档，这些文档可以基于文本呈现的、也可以生成WEB页面的，还可以在服务器上以浏览器的方式呈现！
一、pydoc
1.到底什么是pydoc? ，这个是准确的解释：Documentation generator and online help system.pydoc是Python自带的模块，主要用于从python模块中自动生成文档，这些文档可以基于文本呈现的、也可以生成web页面的，还可以在服务器上以浏览器的方式呈现！简而言之，就是帮你从代码和注释自动生成文档的工具。
2.举个栗子，我需要查看python里面open函数的功能和语法，打开cmd，输入：python -m pydoc open
3.-m参数：python以脚本方法运行模块
那么问题来了，这个是已经知道有这个函数，去查看它的功能，selenium里面不知道到底有多少个函数或方法，那如何查看呢？
二、启动server
1.打开cmd命令行，输入：python -m pydoc -p 6666
2.-p参数：这个表示在本机上启动服务
3.6666参数：这个是服务端口号，随意设置
打开后，界面会出现一个地址：http://localhost:7777/，输入b，在浏览器中直接打开
三、浏览器查看文档
1.发现浏览器自动打开：http://localhost:7777/
2.Built-in Moudles:这个是python自带的模块
四、webdriver API
1.找到这个路径：python37\lib\site-packages，点开selenium
2.打开selenium>webdriver>chrome>webdriver,最终路径：http://localhost:7777/selenium.webdriver.chrome.webdriver.html
3.最终看到的这些就是selenium的webdriver API帮助文档啦
add_cookie(self, cookie_dict)
Adds a cookie to your current session.
:Args:
- cookie_dict: A dictionary object, with required keys - "name" and "value";
optional keys - "path", "domain", "secure", "expiry"
Usage:
driver.add_cookie({'name' : 'foo', 'value' : 'bar'})
driver.add_cookie({'name' : 'foo', 'value' : 'bar', 'path' : '/'})
driver.add_cookie({'name' : 'foo', 'value' : 'bar', 'path' : '/', 'secure':True})
back(self)
Goes one step backward in the browser history.
:Usage:
driver.back()
close(self)
Closes the current window.
:Usage:
driver.close()
create_web_element(self, element_id)
Creates a web element with the specified `element_id`.
delete_all_cookies(self)
Delete all cookies in the scope of the session.
:Usage:
driver.delete_all_cookies()
delete_cookie(self, name)
Deletes a single cookie with the given name.
:Usage:
driver.delete_cookie('my_cookie')
execute(self, driver_command, params=None)
Sends a command to be executed by a command.CommandExecutor.
:Args:
- driver_command: The name of the command to execute as a string.
- params: A dictionary of named parameters to send with the command.
:Returns:
The command's JSON response loaded into a dictionary object.
execute_async_script(self, script, *args)
Asynchronously Executes JavaScript in the current window/frame.
:Args:
- script: The JavaScript to execute.
- \*args: Any applicable arguments for your JavaScript.
:Usage:
script = "var callback = arguments[arguments.length - 1]; " "window.setTimeout(function(){ callback('timeout') }, 3000);"
driver.execute_async_script(script)
execute_script(self, script, *args)
Synchronously Executes JavaScript in the current window/frame.
:Args:
- script: The JavaScript to execute.
- \*args: Any applicable arguments for your JavaScript.
:Usage:
driver.execute_script('return document.title;')
file_detector_context(self, file_detector_class, *args, **kwargs)
Overrides the current file detector (if necessary) in limited context.
Ensures the original file detector is set afterwards.
Example:
with webdriver.file_detector_context(UselessFileDetector):
someinput.send_keys('/etc/hosts')
:Args:
- file_detector_class - Class of the desired file detector. If the class is different
from the current file_detector, then the class is instantiated with args and kwargs
and used as a file detector during the duration of the context manager.
- args - Optional arguments that get passed to the file detector class during
instantiation.
- kwargs - Keyword arguments, passed the same way as args.
find_element(self, by='id', value=None)
Find an element given a By strategy and locator. Prefer the find_element_by_* methods when
possible.
:Usage:
element = driver.find_element(By.ID, 'foo')
:rtype: WebElement
find_element_by_class_name(self, name)
Finds an element by class name.
:Args:
- name: The class name of the element to find.
:Returns:
- WebElement - the element if it was found
:Raises:
- NoSuchElementException - if the element wasn't found
:Usage:
element = driver.find_element_by_class_name('foo')
find_element_by_css_selector(self, css_selector)
Finds an element by css selector.
:Args:
- css_selector - CSS selector string, ex: 'a.nav#home'
:Returns:
- WebElement - the element if it was found
:Raises:
- NoSuchElementException - if the element wasn't found
:Usage:
element = driver.find_element_by_css_selector('#foo')
find_element_by_id(self, id_)
Finds an element by id.
:Args:
- id\_ - The id of the element to be found.
:Returns:
- WebElement - the element if it was found
:Raises:
- NoSuchElementException - if the element wasn't found
:Usage:
element = driver.find_element_by_id('foo')
find_element_by_link_text(self, link_text)
Finds an element by link text.
:Args:
- link_text: The text of the element to be found.
:Returns:
- WebElement - the element if it was found
:Raises:
- NoSuchElementException - if the element wasn't found
:Usage:
element = driver.find_element_by_link_text('Sign In')
find_element_by_name(self, name)
Finds an element by name.
:Args:
- name: The name of the element to find.
:Returns:
- WebElement - the element if it was found
:Raises:
- NoSuchElementException - if the element wasn't found
:Usage:
element = driver.find_element_by_name('foo')
find_element_by_partial_link_text(self, link_text)
Finds an element by a partial match of its link text.
:Args:
- link_text: The text of the element to partially match on.
:Returns:
- WebElement - the element if it was found
:Raises:
- NoSuchElementException - if the element wasn't found
:Usage:
element = driver.find_element_by_partial_link_text('Sign')
find_element_by_tag_name(self, name)
Finds an element by tag name.
:Args:
- name - name of html tag (eg: h1, a, span)
:Returns:
- WebElement - the element if it was found
:Raises:
- NoSuchElementException - if the element wasn't found
:Usage:
element = driver.find_element_by_tag_name('h1')
find_element_by_xpath(self, xpath)
Finds an element by xpath.
:Args:
- xpath - The xpath locator of the element to find.
:Returns:
- WebElement - the element if it was found
:Raises:
- NoSuchElementException - if the element wasn't found
:Usage:
element = driver.find_element_by_xpath('//div/td[1]')
find_elements(self, by='id', value=None)
Find elements given a By strategy and locator. Prefer the find_elements_by_* methods when
possible.
:Usage:
elements = driver.find_elements(By.CLASS_NAME, 'foo')
:rtype: list of WebElement
find_elements_by_class_name(self, name)
Finds elements by class name.
:Args:
- name: The class name of the elements to find.
:Returns:
- list of WebElement - a list with elements if any was found. An
empty list if not
:Usage:
elements = driver.find_elements_by_class_name('foo')
find_elements_by_css_selector(self, css_selector)
Finds elements by css selector.
:Args:
- css_selector - CSS selector string, ex: 'a.nav#home'
:Returns:
- list of WebElement - a list with elements if any was found. An
empty list if not
:Usage:
elements = driver.find_elements_by_css_selector('.foo')
find_elements_by_id(self, id_)
Finds multiple elements by id.
:Args:
- id\_ - The id of the elements to be found.
:Returns:
- list of WebElement - a list with elements if any was found. An
empty list if not
:Usage:
elements = driver.find_elements_by_id('foo')
find_elements_by_link_text(self, text)
Finds elements by link text.
:Args:
- link_text: The text of the elements to be found.
:Returns:
- list of webelement - a list with elements if any was found. an
empty list if not
:Usage:
elements = driver.find_elements_by_link_text('Sign In')
find_elements_by_name(self, name)
Finds elements by name.
:Args:
- name: The name of the elements to find.
:Returns:
- list of webelement - a list with elements if any was found. an
empty list if not
:Usage:
elements = driver.find_elements_by_name('foo')
find_elements_by_partial_link_text(self, link_text)
Finds elements by a partial match of their link text.
:Args:
- link_text: The text of the element to partial match on.
:Returns:
- list of webelement - a list with elements if any was found. an
empty list if not
:Usage:
elements = driver.find_elements_by_partial_link_text('Sign')
find_elements_by_tag_name(self, name)
Finds elements by tag name.
:Args:
- name - name of html tag (eg: h1, a, span)
:Returns:
- list of WebElement - a list with elements if any was found. An
empty list if not
:Usage:
elements = driver.find_elements_by_tag_name('h1')
find_elements_by_xpath(self, xpath)
Finds multiple elements by xpath.
:Args:
- xpath - The xpath locator of the elements to be found.
:Returns:
- list of WebElement - a list with elements if any was found. An
empty list if not
:Usage:
elements = driver.find_elements_by_xpath("//div[contains(@class, 'foo')]")
forward(self)
Goes one step forward in the browser history.
:Usage:
driver.forward()
fullscreen_window(self)
Invokes the window manager-specific 'full screen' operation
get(self, url)
Loads a web page in the current browser session.
get_cookie(self, name)
Get a single cookie by name. Returns the cookie if found, None if not.
:Usage:
driver.get_cookie('my_cookie')
get_cookies(self)
Returns a set of dictionaries, corresponding to cookies visible in the current session.
:Usage:
driver.get_cookies()
get_log(self, log_type)
Gets the log for a given log type
:Args:
- log_type: type of log that which will be returned
:Usage:
driver.get_log('browser')
driver.get_log('driver')
driver.get_log('client')
driver.get_log('server')
get_screenshot_as_base64(self)
Gets the screenshot of the current window as a base64 encoded string
which is useful in embedded images in HTML.
:Usage:
driver.get_screenshot_as_base64()
get_screenshot_as_file(self, filename)
Saves a screenshot of the current window to a PNG image file. Returns
False if there is any IOError, else returns True. Use full paths in
your filename.
:Args:
- filename: The full path you wish to save your screenshot to. This
should end with a `.png` extension.
:Usage:
driver.get_screenshot_as_file('/Screenshots/foo.png')
get_screenshot_as_png(self)
Gets the screenshot of the current window as a binary data.
:Usage:
driver.get_screenshot_as_png()
get_window_position(self, windowHandle='current')
Gets the x,y position of the current window.
:Usage:
driver.get_window_position()
get_window_rect(self)
Gets the x, y coordinates of the window as well as height and width of
the current window.
:Usage:
driver.get_window_rect()
get_window_size(self, windowHandle='current')
Gets the width and height of the current window.
:Usage:
driver.get_window_size()
implicitly_wait(self, time_to_wait)
Sets a sticky timeout to implicitly wait for an element to be found,
or a command to complete. This method only needs to be called one
time per session. To set the timeout for calls to
execute_async_script, see set_script_timeout.
:Args:
- time_to_wait: Amount of time to wait (in seconds)
:Usage:
driver.implicitly_wait(30)
maximize_window(self)
Maximizes the current window that webdriver is using
minimize_window(self)
Invokes the window manager-specific 'minimize' operation
refresh(self)
Refreshes the current page.
:Usage:
driver.refresh()
save_screenshot(self, filename)
Saves a screenshot of the current window to a PNG image file. Returns
False if there is any IOError, else returns True. Use full paths in
your filename.
:Args:
- filename: The full path you wish to save your screenshot to. This
should end with a `.png` extension.
:Usage:
driver.save_screenshot('/Screenshots/foo.png')
set_page_load_timeout(self, time_to_wait)
Set the amount of time to wait for a page load to complete
before throwing an error.
:Args:
- time_to_wait: The amount of time to wait
:Usage:
driver.set_page_load_timeout(30)
set_script_timeout(self, time_to_wait)
Set the amount of time that the script should wait during an
execute_async_script call before throwing an error.
:Args:
- time_to_wait: The amount of time to wait (in seconds)
:Usage:
driver.set_script_timeout(30)
set_window_position(self, x, y, windowHandle='current')
Sets the x,y position of the current window. (window.moveTo)
:Args:
- x: the x-coordinate in pixels to set the window position
- y: the y-coordinate in pixels to set the window position
:Usage:
driver.set_window_position(0,0)
set_window_rect(self, x=None, y=None, width=None, height=None)
Sets the x, y coordinates of the window as well as height and width of
the current window.
:Usage:
driver.set_window_rect(x=10, y=10)
driver.set_window_rect(width=100, height=200)
driver.set_window_rect(x=10, y=10, width=100, height=200)
set_window_size(self, width, height, windowHandle='current')
Sets the width and height of the current window. (window.resizeTo)
:Args:
- width: the width in pixels to set the window to
- height: the height in pixels to set the window to
:Usage:
driver.set_window_size(800,600)
start_client(self)
Called before starting a new session. This method may be overridden
to define custom startup behavior.
start_session(self, capabilities, browser_profile=None)
Creates a new session with the desired capabilities.
:Args:
- browser_name - The name of the browser to request.
- version - Which browser version to request.
- platform - Which platform to request the browser on.
- javascript_enabled - Whether the new session should support JavaScript.
- browser_profile - A selenium.webdriver.firefox.firefox_profile.FirefoxProfile object. Only used if Firefox is requested.
stop_client(self)
Called after executing a quit command. This method may be overridden
to define custom shutdown behavior.
switch_to_active_element(self)
Deprecated use driver.switch_to.active_element
switch_to_alert(self)
Deprecated use driver.switch_to.alert
switch_to_default_content(self)
Deprecated use driver.switch_to.default_content
switch_to_frame(self, frame_reference)
Deprecated use driver.switch_to.frame
switch_to_window(self, window_name)
Deprecated use driver.switch_to.window
Data descriptors inherited from selenium.webdriver.remote.webdriver.WebDriver:
__dict__
dictionary for instance variables (if defined)
__weakref__
list of weak references to the object (if defined)
application_cache
Returns a ApplicationCache Object to interact with the browser app cache
current_url
Gets the URL of the current page.
:Usage:
driver.current_url
current_window_handle
Returns the handle of the current window.
:Usage:
driver.current_window_handle
desired_capabilities
returns the drivers current desired capabilities being used
file_detector
log_types
Gets a list of the available log types
:Usage:
driver.log_types
mobile
name
Returns the name of the underlying browser for this instance.
:Usage:
name = driver.name
orientation
Gets the current orientation of the device
:Usage:
orientation = driver.orientation
page_source
Gets the source of the current page.
:Usage:
driver.page_source
switch_to
:Returns:
- SwitchTo: an object containing all options to switch focus into
:Usage:
element = driver.switch_to.active_element
alert = driver.switch_to.alert
driver.switch_to.default_content()
driver.switch_to.frame('frame_name')
driver.switch_to.frame(1)
driver.switch_to.frame(driver.find_elements_by_tag_name("iframe")[0])
driver.switch_to.parent_frame()
driver.switch_to.window('main')
title
Returns the title of the current page.
:Usage:
title = driver.title
window_handles
Returns the handles of all windows within the current session.
:Usage:
driver.window_handles
cookie：driver.add_cookie(字典格式)
driver.delete_cookie('cookie名')
driver.delete_all_cookies()
driver.get_cookie(name)
driver.get_cookies()
浏览器相关：
浏览器前进、后退、退出当前窗口：driver.forward()、driver.back()、driver.close()
全屏:driver.fullscreen_window()
driver.get(url)、
创建新的web element：driver.create_web_element(element_id)
位置、大小：
driver.get_window_position()
driver.get_window_rect()
driver.get_window_size()
driver.maximize_window()
driver.minimize_window()
set_window_position(0,0) # x,y
set_window_rect(x=1,y=1,width=100,height=200)
set_window_size(width,height)
等待：driver.implicitly_wait(10)
driver.set_page_load_timeout(20) #设置等待页面加载完成的时间量在抛出错误之前。
driver.set_script_timeout(20) #设置脚本在在引发错误之前执行“异步”脚本调用。
刷新：driver.refresh()
截图：
driver.save_screenshot("D:\\1.png")
driver.get_screenshot_as_base64()
driver.get_screenshot_as_file("D:\\1.png")
driver.get_screenshot_as_png()
执行：driver.execute(字符串格式的执行命令的名称，命名参数字典）
driver.execute_async_script(script,*args)
driver.execute_script(script,*args)
定位：八种定位方式，单数：如，find_element_by_id(id)
复数：如，find_elements_by_id(id)
其它：
driver.get_log('browser') #获取给定日志类型的日志
driver.current_url #获取当前页的URL
driver.title
driver.current_window_handle #返回当前窗口的句柄
driver.name
driver.window_handles #返回当前会话中所有窗口的句柄（浏览器窗口的标签）
driver.orientation
driver.page_source
switch_to #切换到 一个包含所有可切换焦点的选项的对象
driver.switch_to.active_element
driver.switch_to.alert
driver.switch_to.default_content()
driver.switch_to.frame('frame_name')
driver.switch_to.frame(driver.find_elements_by_tag_name("iframe")[0])
driver.switch_to.parent_frame()
driver.switch_to.window('main') #切换句柄，如，切换浏览器标签
越努力，越幸运！！！
good good study，day day up！！!
