my variables are lexicals, and are scoped to the enclosing block. You can change the package name all you like; all that matters to a lexical variable is where the block ends. In your example, you declare my $var and set it to 'first var'. You then, after switching to package main, declare my $var again, setting it to nothing. Since lexicals don't care about packages, and you're in the same block, this clobbers your original $var, which produces the warning.

You note that adding bare blocks around your packages suppresses the warning. That's because $var is a different $var in each block.

In reply to Re: Scope, package, and 'my' variables by friedo
in thread Scope, package, and 'my' variables by ff

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