Section thirty-fifth cancel favorite stocks

import re
import pymysql


URL_DICT = dict()

'''
Add to the regular routing reasons: in the actual development, URL will often with a lot of parameters, such as: /add/0000007.html, which
000007 (stock code means: extracts the corresponding database may be used for recording) is parameter,
If this time is not regular, then we should write N times @route, add the corresponding function to the dictionary, then the dictionary of key-value pairs with N, a waste of space,
If regular, then only need to write one @route to complete multiple URL, such as /add/00007.html,add/000036.html correspond to the same function, when the dictionary key-value pairs
A lot less
'''
def route(url):
    def set_func(func):
        URL_DICT[url] = func
        def call_func():
            func()
        return call_func
    return set_func

@route(r'/center.html')
def center_p(set):
    pass

@route (R & lt ' /add/(\d+)\.html ' )
 DEF add_focus (RET):
     # Get ticker 
    stock_code ret.group = (. 1 )
     # determines whether a stock ticker 
    Conn = pymysql.connect ( ' localhost ' , ' the root ' , ' ' , ' python_test ' )
    cursor = conn.cursor()
    sql = "select * from info where code=%s"
    cursor.execute(sql, (stock_code,))
    if not cursor.fetchone():
        cursor.close()
        conn.close()
        return  ' did not run the stock, we are start-up companies, please popular men ' 
    the else :
         # determine whether the stock code is already concerned about 
        SQL = ' the SELECT * Focus from the WHERE info_id =% S '
        cursor.execute(sql, (stock_code,))
        if cursor.fetchone():
            cursor.close()
            conn.close()
            return  ' has been a concern, do not repeat concerned ' 
        the else :
             # Add concern 
            SQL = ' INSERT INTO Focus (info_id) the SELECT the above mentioned id info from the WHERE code =% S '
            cursor.execute(sql, (stock_code,))
            conn.commit()
            cursor.close()
            conn.close()
    return 'add(%s) ok ....' % stock_code

@route (R & lt ' /add/(\d+)\.html ' )
 DEF del_focus (RET):
     # Get ticker 
    stock_code ret.group = (. 1 )
     # determines whether a stock ticker 
    Conn = pymysql.connect ( ' localhost ' , ' the root ' , ' ' , ' python_test ' )
    cursor = conn.cursor()
    sql = "select * from info as i inner join focus as f on i.id=f.info_id where i.code=%s"
    cursor.execute(sql, (stock_code,))
    if not cursor.fetchone():
        cursor.close()
        conn.close()
        return  ' did not run the stock, we are start-up companies, please popular men ' 
    the else :
         # determine whether the stock code is already concerned about 
        SQL = ' the SELECT * Focus from the WHERE info_id =% S '
        cursor.execute(sql, (stock_code,))
        if not cursor.fetchone():
            cursor.close()
            conn.close()
            return  ' not previously concerned, can not be canceled ' 
            # added concern 
        SQL = ' the Delete INTO Focus (info_id) the SELECT the above mentioned id info from the WHERE code =% S '
        cursor.execute(sql, (stock_code,))
        conn.commit()
        cursor.close()
        conn.close()
    return 'add(%s) ok ....' % stock_code

@route(r'index.html')
def index_p(ret):
    pass


DEF file application (the env, The start_response):
     '' ' the env is an empty dictionary, The start_response is quoted web server in a method, a function return the body ' '' 
    The start_response ( ' 200 is the OK ' , [( ' the Content-the Type ' , ' text / HTML; charset = UTF-. 8 ' )])
    file_name = env['PATH INFO']

    try:
        # return URL_DICT[file_name]()
        for url, func in URL_DICT.items():
            '''
            {r"/index.html":index,
            r"/center.html":center,
            r"/add/\d+\.html":add_focus
            } 
            '' ' 
            RET = re.match (URL, file_name)
             IF RET:
                 return FUNC (RET)
     the except Exception AS RET:
         return  ' an abnormality S% ' % STR (RET)