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POPython cannot connect to MySQL if declare in a class
 

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    <p>I'm newbie in Python. I'm trying to use Python to connect MySQL Server. I wrote like guides from MySQL official page, it was OK. But, when I create a connector class, it raised the error "MySQL Connection not available"</p> <p>Here is my class</p> <pre><code>import mysql.connector from mysql.connector import errorcode ## BEGIN MySQL Connector Class class MySQLConnector : configs = { "user":"root", "password":"", "host":"127.0.0.1", "database":"python_db", "raise_on_warnings": True } cursor = None connection = None ## BEGIN Constructor def __init__(self, configs = {}) : if(any(configs)!=False) : self.configs = configs ## END Constructor ## BEGIN Open def open(self) : try: self.connection = mysql.connector.connect(self.configs) except mysql.connector.Error as err: if err.errno == errorcode.ER_ACCESS_DENIED_ERROR: print("Something is wrong with your user name or password") elif err.errno == errorcode.ER_BAD_DB_ERROR: print("Database does not exists") else: print(err) finally: self.connection.close() return self.connection ## END Open ## BEGIN close connection def close(self) : self.cursor.close() self.connection.close() ## END close connection ## BEGIN execute def execute(self, query) : if(self.connection == None) : print("Connection is None") return self.cursor = self.connection.cursor() if(self.cursor!=None) : self.cursor.execute(query) else: print("Cursor is 'None'") ## END execute ## END MySQL Connector Class ## BEGIN RUN objConnect = MySQLConnector() objConnect.open() objConnect.execute("SELECT * FROM User") </code></pre> <p>Please show me the way to solution and explained me why my code has error.</p> <p>Thanks!</p> <hr> <p><strong>EDITED</strong></p> <p>Finally, mata and alecxe help me to solve this problem, I don't know which solution to be choosen. I summary here for someone has mistake like me: 1. Remove the finally statement. 2. Using <code>**</code> in <code>self.connection = mysql.connector.connect(**self.configs)</code></p>
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    1. USGia Duong Duc Minh
    1. USGia Duong Duc Minh
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      1. VTUpMod
    1. CO`## BEGIN MySQL Connector Class` ... `## END MySQL Connector Class` - this makes any python programmer's eyes bleed.
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      1. USmata
    2. CO`if(any(configs)!=False)` seems wrong to me, as the condition nearly always is true. What did you mean to accomplish?
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    3. CO@glglgl you'll find it difference when using this *objConnect = MySQLConnect(other_configs)*
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      1. USGia Duong Duc Minh
 

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