Use a piped open to feed the data to the python script: 

my @data = genData();

my $pid = open OUT, '-|', 'python theScript.py' or die;

print OUT $_ for @data;

close OUT;

waitpid $pid, 0;
## The python script has finished.

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In reply to Re: how to run a python web application from within a perl script by BrowserUk
in thread how to run a python web application from within a perl script by BhariD

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