swift 从终端抛出 python 错误

Question

每当我尝试启动与 python 相关的 swift 时，我都会收到错误消息。我该如何解决这个问题？

bash-3.2$ swift --version
Apple Swift version 4.1 (swiftlang-902.0.48 clang-902.0.37.1)
Target: x86_64-apple-darwin17.5.0
bash-3.2$ swift
Traceback (most recent call last):
File "", line 1, in
File "/usr/local/Cellar/python@2/2.7.14_3/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 52, in
import weakref
File "/usr/local/Cellar/python@2/2.7.14_3/Frameworks/Python.framework/Versions/2.7/lib/python2.7/weakref.py", line 14, in
from _weakref import (
ImportError: cannot import name _remove_dead_weakref

Answer 1

我得到同样的错误，因为 swift REPL 使用自制程序安装在 /usr/local/bin/python 的 python 解释器。

为了避免这种情况，你可以

export PATH=/usr/bin:$PATH
swift

或

PATH=/usr/bin:$PATH swift