Chapter 13. Packages and Modules
- import module [ list ]
Usually imports subroutines and variables from module into the current package. import is not a built-in, but an ordinary class method that may be inherited from
UNIVERSAL.
- no module [ list ]
At compile time, requires the module and calls its unimport method on list. See use on the next page.
- package [ namespace ]
Designates the remainder of the current block or file as a package with a namespace. Omitting namespace is deprecated.
- require version
Requires Perl to be at least this version. version can be numeric like
5.005
or5.008001,
or a v-string likev5.8.1.
- require exprâ
If expr is numeric, behaves like require version. Otherwise expr must be the name of a file that is included from the Perl library. Does not include more than once, and yields a fatal error if the file does not evaluate to true. If expr is a bare word, assumes extension
.pm
for the name of the file.- unimport module [ list ]
Usually cancels the effects of a previous import or use. Like import, unimport is not a built-in, but an ordinary class method.
- use version
Requires Perl to be at least this version. version can be numeric like
5.005
or5.008001,
or a v-string likev5.8.0
or5.8.1.
- use module [ version ] [ list ]
At compile time, requires the module, optionally verifies the version, and calls its import method on list. Normally used to import a list of variables and subroutines from the named module into the current package.
perlmod.
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