Howto set path for local package in a Perl code

neversaint has asked for the wisdom of the Perl Monks concerning the following question:

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Re: Howto set path for local package in a Perl code by holli (Abbot) on Jun 01, 2006 at 09:48 UTC
Hard to tell what's wrong in line 10 when all you show us are lines 1-4. Anyway this line `use lib "home/neversaint/MyPerl/src/mypackage.pm";` [download] should read `use lib "/home/neversaint/MyPerl/src"; use mypackage;` [download] The arguments for `use lib` are paths, not files. Also, you shouldn't name your modules in all lower case. That's reserved for pragmas. holli, /regexed monk/	[reply] [d/l] [select]
Re^2: Howto set path for local package in a Perl code by neversaint (Deacon) on Jun 01, 2006 at 10:22 UTC
Dear holli, Thanks so much for the reply, however after following your suggestion with this header in mycode.pl `use strict; use warnings; use lib "/home/neversaint/MyPerl/src"; use MYPACKAGE;` [download] what I get is this... `~/MyPerl/src $ perl -c src/mycode.pl # gives Can't locate MYPACKAGE.pm in @INC (@INC contains: home/neversaint/MyPe +rl/src /home/neversaint/lib/perl5/site_perl/5.8.5/i386-linux-thread-m +ulti/5.8.5/i386-linux-thread-multi` [download] In MYPACKAGE.pm what I have is this: `# plain header nothing here... # straight go to the functions.... sub some_func { # do sth; return $soth } 1;` [download] Although I have no problem at all running mycode.pl in src/ directory : `~/MyPerl $ perl mycode.pl someparam` Did I still miss anything? --- neversaint and everlastingly indebted.......	[reply] [d/l] [select]
Re^3: Howto set path for local package in a Perl code by davorg (Chancellor) on Jun 01, 2006 at 10:39 UTC
Can't locate MYPACKAGE.pm in @INC (@INC contains: home/neversaint/MyPerl/src /home/neversaint/lib/perl5/site_perl/5.8.5/i386-linux-thread-multi/5.8.5/i386-linux-thread-multi That error message still gives the path without the leading slash. Which makes me think that perhaps you haven't edited the file successfully to correct that. -- <http://dave.org.uk> "The first rule of Perl club is you do not talk about Perl club." -- Chip Salzenberg	[reply]
Re^3: Howto set path for local package in a Perl code by krisahoch (Deacon) on Jun 01, 2006 at 17:56 UTC
neversaint, try this code. This is for you script file 'mycode.plx' `# In script file named: mycode.plx use strict; use warnings; use diagnostics; # This just gives you more info. use lib '/home/neversaint/MyPerl/src'; use MyPackage; # Now the rest of your code.` [download] This is for your package file 'MyPackage.pm' `# In MyPackage.pm package MyPackage; use strict; use warnings; use diagnostics; sub some_function { print("My some function"); }` [download] Now here is the important part. The use statement, the file name, and the package declaration *MUST* all be in the same case. Use statement: use MyPackage; File Name: MyPackage.pm Package statement: package MyPackage; Kristofer Hoch	[reply] [d/l] [select]
Re: Howto set path for local package in a Perl code by davorg (Chancellor) on Jun 01, 2006 at 09:49 UTC
use lib "home/neversaint/MyPerl/src/mypackage.pm"; That's almost certainly wrong. The path should probably start with a '/'. And `use lib` only contains paths to library directories. You need a separate `use` statement to actually load the module. `use lib '/home/neversaint/MyPerl/src/'; use mypackage;` [download] (And, as holli says, you shouldn't give a module a lower case name) Alternatively, you might look at the FindBin module. -- <http://dave.org.uk> "The first rule of Perl club is you do not talk about Perl club." -- Chip Salzenberg	[reply] [d/l]
Re^2: Howto set path for local package in a Perl code by chibiryuu (Beadle) on Jun 02, 2006 at 16:32 UTC
Example: Use FindBin and your script will work no matter where you move it and its modules together. `use FindBin; use lib "$FindBin::Bin"; use MyPackage;` [download] `use lib` only adds the path to `@INC`, you still need to `use MyPackage` after it.	[reply] [d/l] [select]
Re: Howto set path for local package in a Perl code by marto (Cardinal) on Jun 01, 2006 at 09:52 UTC
Hi neversaint, You may find it useful to read Simple Module Tutorial from the Tutorials section of this site. Hope this helps. Martin	[reply]
Re: Howto set path for local package in a Perl code by codeacrobat (Chaplain) on Jun 02, 2006 at 06:19 UTC
In the shell: `export PERL5LIB=/home/neversaint/MyPerl/src` [download] This way you need not to specify the module location inside your script.	[reply] [d/l]
Re: Howto set path for local package in a Perl code by tcf03 (Deacon) on Jun 01, 2006 at 11:21 UTC
you could do `#!/usr/bin/perl use strict; use warnings; BEGIN { push @INC, '/your/directory'; }` [download] Ted -- "That which we persist in doing becomes easier, not that the task itself has become easier, but that our ability to perform it has improved." --Ralph Waldo Emerson	[reply] [d/l]
Re: Howto set path for local package in a Perl code by BaldPenguin (Friar) on Jun 01, 2006 at 17:26 UTC
I offer this as advice and as a question When faced with this situation, I have always used a flag in my shebang `#!/path/to/perl -I.` [download] Are there issues with doing that? Don WHITEPAGES.COM \| INC Everything I've learned in life can be summed up in a small perl script!	[reply] [d/l]
Re^2: Howto set path for local package in a Perl code by holli (Abbot) on Jun 01, 2006 at 18:06 UTC
Are there issues with doing that? It can easily fail: `#!perl -I. #t.pl use strict; use warnings; use XTest; print "ok\n";` [download] ------- `#XTest.pm package XTest; use strict; use warnings; 1;` [download] ------- `F:\tmp\test>dir .p Directory Listing of F:\tmp\test 01.06.2006 20:02 52 t.pl 01.06.2006 20:02 46 XTest.pm 2 File(s 98 Bytes 0 Directories, 2.727.182.336 Bytes free F:\tmp\test>perl t.pl ok F:\tmp\test>cd .. F:\tmp>perl test\t.pl Can't locate XTest.pm in @INC (@INC contains: F:/Perl/lib F:/Perl/site +/lib .) at test\t.pl line 4. BEGIN failed--compilation aborted at test\t.pl line 4. F:\tmp>` [download] holli, /regexed monk/	[reply] [d/l] [select]