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child.before taking almost 1 minute to execute

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  child.before taking almost 1 minute to execute pyfreek <sruthi223@gmail.com> - 2016-02-24 07:42 -0800
    Re: child.before taking almost 1 minute to execute Emile van Sebille <emile@fenx.com> - 2016-02-24 12:57 -0800
      Re: child.before taking almost 1 minute to execute sruthi223@gmail.com - 2016-02-25 07:12 -0800
    Re: child.before taking almost 1 minute to execute Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2016-02-25 10:09 +1300
      Re: child.before taking almost 1 minute to execute sruthi223@gmail.com - 2016-02-25 07:12 -0800

#103449 — child.before taking almost 1 minute to execute

The following snippet alone is taking 1 minute to execute. is there any best way to find 'No such file' other than using child.before

                if not scrutinFile.startswith('/') :
                        scrutinFile = '/'+ scrutinFile
                scrutinFileFtp = directory + scrutinFile
                filePath, file = os.path.split(scrutinFileFtp)
                p.sendline('cd %s'%(filePath))
                p.expect([pexpect.EOF,pexpect.TIMEOUT])
                if 'No such file' in p.before:
                        print "No such directory exists!!"
                        sys.exit(1)


pyfreek

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#103458

On 2/24/2016 7:42 AM, pyfreek wrote:
> The following snippet alone is taking 1 minute to execute. is there any best way to find 'No such file' other than using child.before
>
>                  if not scrutinFile.startswith('/') :
>                          scrutinFile = '/'+ scrutinFile
>                  scrutinFileFtp = directory + scrutinFile
>                  filePath, file = os.path.split(scrutinFileFtp)
>                  p.sendline('cd %s'%(filePath))
>                  p.expect([pexpect.EOF,pexpect.TIMEOUT])
>                  if 'No such file' in p.before:
>                          print "No such directory exists!!"
>                          sys.exit(1)

I'd guess that you've got your p.expect line wrong -- it looks to me 
like you're allowing that line to complete only upon seeing an EOF or 
TIMEOUT, and that it's timing out as a result.

Emile

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#103500

On Wednesday, February 24, 2016 at 3:59:01 PM UTC-5, Emile van Sebille wrote:
> On 2/24/2016 7:42 AM, pyfreek wrote:
> > The following snippet alone is taking 1 minute to execute. is there any best way to find 'No such file' other than using child.before
> >
> >                  if not scrutinFile.startswith('/') :
> >                          scrutinFile = '/'+ scrutinFile
> >                  scrutinFileFtp = directory + scrutinFile
> >                  filePath, file = os.path.split(scrutinFileFtp)
> >                  p.sendline('cd %s'%(filePath))
> >                  p.expect([pexpect.EOF,pexpect.TIMEOUT])
> >                  if 'No such file' in p.before:
> >                          print "No such directory exists!!"
> >                          sys.exit(1)
> 
> I'd guess that you've got your p.expect line wrong -- it looks to me 
> like you're allowing that line to complete only upon seeing an EOF or 
> TIMEOUT, and that it's timing out as a result.
> 
> Emile

HI EMile,

        Thanks for the reply. If I exit based only on EOF, then does it work?

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#103461

pyfreek wrote:
> The following snippet alone is taking 1 minute to execute. is there any best way to find 'No such file' other than using child.before
> 
>                 if not scrutinFile.startswith('/') :
>                         scrutinFile = '/'+ scrutinFile
>                 scrutinFileFtp = directory + scrutinFile
>                 filePath, file = os.path.split(scrutinFileFtp)
>                 p.sendline('cd %s'%(filePath))
>                 p.expect([pexpect.EOF,pexpect.TIMEOUT])
>                 if 'No such file' in p.before:
>                         print "No such directory exists!!"
>                         sys.exit(1)

If you're talking to an ftp client here, you might like
to consider using the ftplib module in the standard
library. It ought to take care of the messy details
of error detection for you.

-- 
Greg

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#103501

On Wednesday, February 24, 2016 at 4:10:13 PM UTC-5, Gregory Ewing wrote:
> pyfreek wrote:
> > The following snippet alone is taking 1 minute to execute. is there any best way to find 'No such file' other than using child.before
> > 
> >                 if not scrutinFile.startswith('/') :
> >                         scrutinFile = '/'+ scrutinFile
> >                 scrutinFileFtp = directory + scrutinFile
> >                 filePath, file = os.path.split(scrutinFileFtp)
> >                 p.sendline('cd %s'%(filePath))
> >                 p.expect([pexpect.EOF,pexpect.TIMEOUT])
> >                 if 'No such file' in p.before:
> >                         print "No such directory exists!!"
> >                         sys.exit(1)
> 
> If you're talking to an ftp client here, you might like
> to consider using the ftplib module in the standard
> library. It ought to take care of the messy details
> of error detection for you.
> 
> -- 
> Greg

Thanks greg, but my organization is using pexpect as a part of its libraries. so I am trying to use the same.

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