Comment 7 for bug 706683

This may be a semi convoluted test, however it does indicate pip doesn't evaluate the dependencies in the order listed.

$:~% pip install -r pip_deps
Downloading/unpacking zzyzz (from -r pip_deps (line 4))
  Could not find any downloads that satisfy the requirement zzyzz (from -r pip_deps (line 4))
No distributions at all found for zzyzz (from -r pip_deps (line 4))
Storing complete log in /Users/jdewey/.pip/pip.log

$:~% cat pip_deps
foo
bar
baz
zzyzz