Re: [Pyobjc-dev] FTP Lib with a Cocoa application

[Rob <rob...@gm...>]

One more bit of information:
if I call the threaded bit with: worker.run() instead of worker.start() the
FTP works as I want it, but it hangs the UI while doing the transfer.


On Tue, Sep 8, 2009 at 10:49 AM, Rob <rob...@gm...> wrote:

> My apologies if this has already been discussed  / answered, but I couldn't
> figure out how to search the archives.
> I am writing a Cocoa based FTP uploading application using ftplib and
> threading and I've hit a bit of a snag.  I am sure it is something I am
> doing wrong, but I wanted to check to see if I am way off.
>
> What appears to be happening is when I run the application within the Cocoa
> GUI the FTP uploading part hangs when it tries to do the upload (staring
> it's own thread I am assuming).  I am guessing it's a "thread in a thread"
> issue? (total guess obviously)
>
> When I run the threaded library directly from __main__ on the command line,
> with FTP set to debug I get the following:
>
> *cmd* 'TYPE I'
> *put* 'TYPE I\r\n'
> *get* '200 Type set to I\r\n'
> *resp* '200 Type set to I'
> *cmd* 'PASV'
> *put* 'PASV\r\n'
> *get* '227 Entering Passive Mode (xxx,xxx,xxx,212,4,3)\r\n'
> *resp* '227 Entering Passive Mode (xxx,xxx,xxx,212,4,3)'
> *cmd* 'STOR TestFile.mov'
> *put* 'STOR TestFile.mov\r\n'
> *get* '150 Connection accepted\r\n'
> *resp* '150 Connection accepted'
> *get* '226 Transfer OK\r\n'
> *resp* '226 Transfer OK'
> *cmd* 'QUIT'
> *put* 'QUIT\r\n'
> *get* '221 Goodbye\r\n'
> *resp* '221 Goodbye'
> Done.
>
> However when I run the same code within Cocoa I get the following:
>
> **cmd* 'TYPE I'*
>
> **put* 'TYPE I\r\n'*
>
> **get* '200 Type set to I\r\n'*
>
> **resp* '200 Type set to I'*
>
> **cmd* 'PASV'*
>
> **put* 'PASV\r\n'*
>
> **get* '227 Entering Passive Mode (xxx,xxx,xxx,212,4,4)\r\n'*
>
> **resp* '227 Entering Passive Mode (xxx,xxx,xxx,212,4,4)'*
>
> And it just hangs there.  It never gets to the next line.
>
> The library that does this is a threaded class: class FTPFile(Thread):
> that just runs a typical ftp connection and upload in the run method:
>
> def run(self):
>
>         ftp = FTP(
>
>                     self.config.server,
>
>                     self.config.username,
>
>                     self.config.password)
>
> etc, etc
>
> I can FTP via the command line "ftp" application, and, like I said, when I
> run the library directly so I don't think it's a server problem.  Is there
> something I may have missed when creating the Cocoa app? Do I have to
> explicitly allow FTP connections or something (I also have the firewall
> off)? Or is this a known issue with Cocoa+Python?
>
> Thanks for any help,
> rob
>
> --
> http://robrohan.com
> http://twitter.com/robrohan
>



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