The reason it fails inside the BEGIN block is that the use of MyApp::Conf happens while the BEGIN block is being compiled, but the assignment to %ENV happens after the BEGIN block is compiled (i.e., at the BEGIN block's "run time"). If you put it after the BEGIN block, then the compilation (use) of MyApp::Conf happens after the BEGIN block has executed (and the assignment to %ENV has happened).

In reply to Re^2: BEGIN block question by kyle
in thread BEGIN block question by Anonymous Monk

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