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！
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
python -m pydoc open
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 1009
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:6666/，在浏览器中打开
三、浏览器中查看文档
1、在浏览器输入：http://localhost:6666/
2、Built-in Moudles ：这个是python自带的模块
四、webdriver API
1、找到这个路径：C:Python33libsite-packages，点开selenium
2、打开的selenium>webdriver>firefox>webdriver,最终路径：http://localhost:1009/selenium.webdriver.firefox.webdriver.html
class WebDriver(selenium.webdriver.remote.webdriver.WebDriver) Method resolution order: WebDriver selenium.webdriver.remote.webdriver.WebDriver builtins.object Methods defined here: __init__(self, firefox_profile=None, firefox_binary=None, timeout=30, capabilities=None, proxy=None, executable_path='wires', firefox_options=None) quit(self) Quits the driver and close every associated window. set_context(self, context) Data descriptors defined here: firefox_profile Data and other attributes defined here: NATIVE_EVENTS_ALLOWED = True Methods inherited from selenium.webdriver.remote.webdriver.WebDriver: __repr__(self) 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: driver.execute_async_script('document.title') 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('document.title') file_detector_context(*args, **kwds) 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) 'Private' method used by the find_element_by_* methods. :Usage: Use the corresponding find_element_by_* instead of this. :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. :Usage: driver.find_element_by_class_name('foo') find_element_by_css_selector(self, css_selector) Finds an element by css selector. :Args: - css_selector: The css selector to use when finding elements. :Usage: 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. :Usage: 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. :Usage: 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. :Usage: 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. :Usage: driver.find_element_by_partial_link_text('Sign') find_element_by_tag_name(self, name) Finds an element by tag name. :Args: - name: The tag name of the element to find. :Usage: driver.find_element_by_tag_name('foo') find_element_by_xpath(self, xpath) Finds an element by xpath. :Args: - xpath - The xpath locator of the element to find. :Usage: driver.find_element_by_xpath('//div/td[1]') find_elements(self, by='id', value=None) 'Private' method used by the find_elements_by_* methods. :Usage: Use the corresponding find_elements_by_* instead of this. :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. :Usage: driver.find_elements_by_class_name('foo') find_elements_by_css_selector(self, css_selector) Finds elements by css selector. :Args: - css_selector: The css selector to use when finding elements. :Usage: 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. :Usage: 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. :Usage: 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. :Usage: 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. :Usage: driver.find_element_by_partial_link_text('Sign') find_elements_by_tag_name(self, name) Finds elements by tag name. :Args: - name: The tag name the use when finding elements. :Usage: driver.find_elements_by_tag_name('foo') find_elements_by_xpath(self, xpath) Finds multiple elements by xpath. :Args: - xpath - The xpath locator of the elements to be found. :Usage: driver.find_elements_by_xpath("//div[contains(@class, 'foo')]") forward(self) Goes one step forward in the browser history. :Usage: driver.forward() 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) Gets the screenshot of the current window. 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. :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_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 refresh(self) Refreshes the current page. :Usage: driver.refresh() save_screenshot = get_screenshot_as_file(self, filename) Gets the screenshot of the current window. 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. :Usage: driver.get_screenshot_as_file('/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_size(self, width, height, windowHandle='current') Sets the width and height of the current window. (window.resizeTo) :Args: - 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, desired_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: - 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 title Returns the title of the current page. :Usage: driver.title window_handles Returns the handles of all windows within the current session. :Usage: driver.window_handles