It turns out that lldbtest_config was being imported locally to "lldbsuite.test" instead of globally, so when the test cases got individually brought by a global import via __import__ by unittest2, they did not see the lldbtest_config import, and ended up importing a new separate copy of it, with lldbExec unset This is a simple hackaround that brings lldbtest_config to global visibility and makes sure the configuration data is correctly shared llvm-svn: 251678