Re: Static Data ("__DATA__" vs. "our") (handles)

[tye]

If you use __DATA__ in a module, then please be careful to close DATA soon after the module is first required.

Otherwise you are tying up one of the process's finite supply of file handles. It is easy for a Perl script to use a lot more modules than it does file handles, so this has the potential to be a big problem.

                - tye

[IlyaM]

Another common problem I've seen with usage of __DATA__ in modules is using while(<DATA>) without localizing $_ (see while(<>) { ... } considered harmful why it is bad).

Update: Actually $_ should not be used in modules at all. See this bug report why.

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Ilya Martynov, [e-mail]
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