def previous(self, cli):
        if len(self.focus_stack) > 1:
            try:
                return self[self.focus_stack[-2]]
            except KeyError:
                pass
The virtualenv path associated with this worktree.
dataset/ETHPy150Open jonathanslenders/python-prompt-toolkit/prompt_toolkit/buffer_mapping.py/BufferMapping.previous--crossover with--dataset/ETHPy150Open aldebaran/qibuild/python/qibuild/worktree.py/BuildWorkTree.venv_path