我想将文件路径从Python输送到Perl脚本。虽然我熟悉Python和Bash,但我对Perl一无所知。
我有以下(示例)文件:
return.py
print( 'data/test.txt' )uniprot.pl
use strict;
use warnings;
use LWP::UserAgent;
my $list = $ARGV[0]; # File containg list of UniProt identifiers.
my $base = 'http://www.uniprot.org';
my $tool = 'uploadlists';
my $contact = ''; # Please set your email address here to help us debug in case of problems.
my $agent = LWP::UserAgent->new(agent => "libwww-perl $contact");
push @{$agent->requests_redirectable}, 'POST';
my $response = $agent->post("$base/$tool/",
[ 'file' => [$list],
'format' => 'fasta',
'from' => 'ACC+ID',
'to' => 'ACC',
],
'Content_Type' => 'form-data');
while (my $wait = $response->header('Retry-After')) {
print STDERR "Waiting ($wait)...\n";
sleep $wait;
$response = $agent->get($response->base);
}
$response->is_success ?
print $response->content :
die 'Failed, got ' . $response->status_line .
' for ' . $response->request->uri . "\n";当我从shell调用perl文件时,比如:perl uniprot.pl data/test.txt,它可以正常工作。
我尝试了不同的方法将python打印到这个调用,但显然是错误的:
1.
python3 return.py | perl uniprot.pl这将给:Failed, got 500 Internal Server Error for http://www.uniprot.org/uploadlists/。但是,正如我所知,代码工作(如上所述),这必须是由错误的管道造成的。
2
python3 return.py | perl uniprot.pl -这将给出: perl,所以看起来字符串被传递给perl文件,但是perl正在寻找一个完全不同的目录。
3
我更改了这一行:my $list = $ARGV[0]; --to-> my $list = <STDIN>;,然后再次调用上述命令(例如1和2)。两者都给予:Can't open file data/test.txt : No such file or directory at /usr/share/perl5/LWP/UserAgent.pm line 476.
问题如何将字符串从return.py传递给uniprot.pl
发布于 2018-05-14 12:02:36
您需要检查参数是通过命令行参数还是通过STDIN提供的。
my $file;
if (@ARGV) {
$file = $ARGV[0];
}
else {
chomp($file = <STDIN>); # chomp removes linebreak
}https://stackoverflow.com/questions/50329497
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