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Groups > comp.lang.python > #33175

Re: Is there a way to creat a func that returns a cursor that can be used?

References <05f7724a-1e41-43ea-b837-88e476917f9a@googlegroups.com>
Date 2012-11-12 22:01 +1100
Subject Re: Is there a way to creat a func that returns a cursor that can be used?
From Chris Angelico <rosuav@gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.3580.1352718075.27098.python-list@python.org> (permalink)

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On Mon, Nov 12, 2012 at 9:45 PM, Khalid Al-Ghamdi <emailkgnow@gmail.com> wrote:
> Is there a way to create a func that returns a cursor that can be used to execute sql statements?

Yes, and you're almost there!

> I tried this (after importing sqlite3), but it gave me the error below:
>
>>>> def connect():
>     return cur
>>>> connect()
> <sqlite3.Cursor object at 0x0119EA20>
>>>> cur.execute("select * from schedule")
> Traceback (most recent call last):
>   File "<pyshell#26>", line 1, in <module>
>     cur.execute("select * from schedule")
> NameError: name 'cur' is not defined

All you need to do is make use of the return value. Try this instead:

cur = connect()

That takes the returned cursor object and binds it to the name 'cur'
in global scope. You can then use 'cur.execute...' and it'll be the
same object.

As a side point, thank you for posting so clearly. It's easy to help
when your code and traceback are all there!

ChrisA

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Thread

Is there a way to creat a func that returns a cursor that can be used? Khalid Al-Ghamdi <emailkgnow@gmail.com> - 2012-11-12 02:45 -0800
  Re: Is there a way to creat a func that returns a cursor that can be used? Peter Otten <__peter__@web.de> - 2012-11-12 11:57 +0100
  Re: Is there a way to creat a func that returns a cursor that can be used? Chris Angelico <rosuav@gmail.com> - 2012-11-12 22:01 +1100
  Re: Is there a way to creat a func that returns a cursor that can be used? Terry Reedy <tjreedy@udel.edu> - 2012-11-12 15:41 -0500

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