Issue 7: Extract entries from .pth files in the temporary install folder and include those values in PYTHONPATH when launching the subprocess.
2.7.1
=====
Issue 6: Only augment but don't replace PYTHONPATH.
2.7
===
Issue 4: No longer use execve because it will suppress the cleanup code after the child exits. Instead, trap the interrupt in the parent process and suppress it.
2.6
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Issue 3: ``rwt`` now relies on ``execve`` to overlay the child process over the current one.
2.5
===
Allow dependencies to be declared in the file in the parameters to the Python interpreter, even if other parameters are supplied. Allows for invocation like::
rwt -- -i myscript.py
2.4.2
=====
Fixed issue in ``__requires__`` parsing when script contained attribute assignment.