+# An empty file in a more deeply-nested directory should be ok as well.
+mkdir -p 1/_/2/_/3/_
+: > 1/_/2/_/3/_/0.py
+
+./py-compile foo.py sub/bar.py 1/_/2/_/3/_/0.py
+py_installed foo.pyc
+py_installed foo.pyo
+py_installed sub/bar.pyc
+py_installed sub/bar.pyo
+py_installed 1/_/2/_/3/_/0.pyc
+py_installed 1/_/2/_/3/_/0.pyo