Declare global var. in python?

[j2ecoder]

Hello,

How can I declare a global variable to be accessible to all of my object methods?
Or is there a java like public static variable?

The type of variable would be a handle to a database connection. Which I will be reusing for all my entire form (wxFrame).

Thanks for any help.

 

[JustinEzequiel]

If you save your connection as an attribute of your wx.Frame instance then you could use it from within your frame.

class MyFrame(wx.Frame):
    def __init__(self, conn, *args, **kwds):
        wx.Frame.__init__(self, *args, **kwds)
        self.conn = conn

    def your_method(self):
        cursor = self.conn.cursor() # attribute
        # etc.

def main():
    conn = MySQLdb.connect()
    myframe = MyFrame(conn)
    myframe.your_method()
    # etc.

If you must, then you could also have it as a module-level variable.

myconn = MySQLdb.connect()

class MyFrame(wx.Frame):
    def your_method(self):
        cursor = myconn.cursor() # module-level var
        # etc.

def main():
    myframe = MyFrame()
    myframe.your_method()
    # etc.