Force the eager import of _bz2 inside bz2.py

Author: DavidCEllis

Lib/bz2.py

@@ -14,6 +14,7 @@
 import io
 import os
 
+import _bz2; _bz2  # Force the eager import of _bz2
 from _bz2 import BZ2Compressor, BZ2Decompressor