可以当作一个 demo 来玩吧，在这里分享一下。里面涉及的内容包含了文件上传，cookie 设置和读取，重定向（redirect）。
from bottle import run, post, get, request, response, redirect import os login_page=‘‘‘ <b>Sorry! Authentication is needed!</b> <form action=‘/login‘ enctype="multipart/form-data" method=‘post‘> <fieldset> <legend>Input passwd for Admin:</legend> <label>passwd:</label> <input type="password" name="passwd"/> <input type=‘submit‘ value=‘submit‘> </fieldset> </form> ‘‘‘ upload_page=‘‘‘ <!DOCTYPE html> <html> <head> <title> Firmware Update </title> </head> <body> <form action=‘/upload‘ enctype="multipart/form-data" method=‘post‘> <fieldset> <legend>Firmware Update:</legend> <label>Select the file:</label> <input type="file" name="upload"/> <input type=‘submit‘ value=‘submit‘> </fieldset> </form> </body> </html> ‘‘‘ @get(‘/‘) def home(): usr = request.get_cookie("account") if usr: redirect(‘/upload‘) else: return login_page @post(‘/login‘) def login(): passwd = request.POST[‘passwd‘] if passwd == ‘88888888‘: response .set_cookie("account", ‘admin‘) redirect(‘/upload‘) else: return ‘wrong! go back & retry!‘ @get(‘/upload‘) def upload(): usr = request.get_cookie("account") if usr: return upload_page else: redirect(‘/‘) @get(‘/logout‘) def logout(): response.delete_cookie("account") redirect(‘/‘) @post(‘/upload‘) def do_upload(): usr = request.get_cookie("account") if usr: upload = request.files.get(‘upload‘) name, ext = os.path.splitext(upload.filename) if ext not in (‘.tgz‘,‘.gz‘): return ‘You give a wrong file. Retry!‘ save_path = "/opt/myapp/update.tar.gz" with open(save_path, ‘w‘) as open_file: open_file.write(upload.file.read()) return ‘‘‘ <b>Done! Please re-power the machine to fill the update! </b> <a href="/logout" title="logout">logout</a> ‘‘‘ else: redirect(‘/‘) run(host=‘192.168.1.230‘, port=80)
原文：http://www.cnblogs.com/pied/p/6497241.html