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Re: Try-except for flow control in reading Sqlite

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Date Mon, 28 Oct 2013 17:36:05 +1100
Subject Re: Try-except for flow control in reading Sqlite
From Chris Angelico <rosuav@gmail.com>
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On Mon, Oct 28, 2013 at 2:43 PM, Victor Hooi <victorhooi@gmail.com> wrote:
> Is it acceptable to use try-except in order to achieve this? E.g.:
>
>     try:
>         # Try to open up the SQLite file, and lookup the required entries
>     except OSError:
>         # Open an empty SQLite file, and create the schema
>
>
> My thinking is that it is (easier to ask forgiveness than permission), but I just wanted to check if there is a better way of achieving this?

That looks fine as a model, but is OSError what you want to be
catching? I'd go with FileNotFoundError if that's what you're looking
for - OSError would also catch quite a bit else, like permissions
errors.

ChrisA

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Thread

Try-except for flow control in reading Sqlite Victor Hooi <victorhooi@gmail.com> - 2013-10-27 20:43 -0700
  Re: Try-except for flow control in reading Sqlite Steven D'Aprano <steve@pearwood.info> - 2013-10-28 06:18 +0000
    Re: Try-except for flow control in reading Sqlite Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-10-28 10:48 +0100
  Re: Try-except for flow control in reading Sqlite Chris Angelico <rosuav@gmail.com> - 2013-10-28 17:36 +1100
    Re: Try-except for flow control in reading Sqlite Victor Hooi <victorhooi@gmail.com> - 2013-10-27 23:57 -0700
      Re: Try-except for flow control in reading Sqlite Chris Angelico <rosuav@gmail.com> - 2013-10-28 18:01 +1100
        Re: Try-except for flow control in reading Sqlite Steven D'Aprano <steve@pearwood.info> - 2013-10-28 07:19 +0000
      Re: Try-except for flow control in reading Sqlite Chris Angelico <rosuav@gmail.com> - 2013-10-28 18:02 +1100
  Re: Try-except for flow control in reading Sqlite Burak Arslan <burak.arslan@arskom.com.tr> - 2013-10-28 10:17 +0200
  Re: Try-except for flow control in reading Sqlite Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-10-28 19:43 -0400
    Re: Try-except for flow control in reading Sqlite Victor Hooi <victorhooi@gmail.com> - 2013-10-31 16:08 -0700
      Re: Try-except for flow control in reading Sqlite Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-10-31 22:45 -0400

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