A side issue: You should keep in mind that
warnings and
strictare not modules.
They are pragmas. As such they
go into block scopes
not into packages.
You cannot do what you want with pragmas only with modules.
A side side issue:
requireing pragmas is not what one is apt
to want.
#!/usr/bin/perl
require strict; # require is too late
$var = 1; # strictures are not in effect
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