Python Web表单提交
通常，与网页的交互需要一些数据通过html页面中的表单提交给服务器。这些网络表单通常用于诸如注册新帐户或提供一些信息(例如姓名或卷号)以检索检查结果的过程。requests模块使用带有所需参数的POST方法优雅地处理此问题。
示例
在下面的示例中，我们通过提供用户名和密码值来使用网站的注册表单。提交值后，将打印响应的结果。
# Filename : example.py
# Copyright : 2020 By Codebaoku
# Author by : www.codebaoku.com
# Date : 2020-08-25
import requests
ID_USERNAME = 'signup-user-name'
ID_PASSWORD = 'signup-user-password'
USERNAME = 'username'
PASSWORD = 'yourpassword'
SIGNUP_URL = 'http://codepad.org/login'
def submit_form():
"""Submit a form"""
payload = {ID_USERNAME : USERNAME, ID_PASSWORD : PASSWORD,}
resp = requests.get(SIGNUP_URL)
print "Response to GET request: %s" %resp.content
resp = requests.post(SIGNUP_URL, payload)
print "Headers from a POST request response: %s" %resp.headers
#print "HTML Response: %s" %resp.read()
if __name__ == '__main__':
submit_form()
执行上面示例代码，得到类似下面结果：
# Filename : example.py
# Copyright : 2020 By Codebaoku
# Author by : www.codebaoku.com
# Date : 2020-08-25
Response to GET request: <!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<meta HTTP-EQUIV="Pragma" CONTENT="no-cache">
<meta HTTP-EQUIV="Expires" CONTENT="-1">
<title>Login - codepad</title>
<link href="/main.css" media="screen" rel="stylesheet" type="text/css" />
<style type="text/css">
</style>
<script src='https://www.google.com/recaptcha/api.js'></script>
<script>
function onRecaptcha(token) {
document.getElementById("editor-form").submit();
}
</script>
</head>
<body >
.....................
.....................
Python编程语言具有用于数据库编程的强大功能。Python支持各种数据库，例如SQLite，MySQL，Oracle，Sybase，PostgreSQL等。Python还支持数据定义语言(DDL)，数据操作 ...