python - aws cli : ERROR:root:code for hash md5 was not found

Question

尝试运行 AWS CLI 时，我收到此错误:

aws
ERROR:root:code for hash md5 was not found.
Traceback (most recent call last):
  File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/hashlib.py", line 147, in <module>
    globals()[__func_name] = __get_hash(__func_name)
  File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor
    raise ValueError('unsupported hash type ' + name)
ValueError: unsupported hash type md5
ERROR:root:code for hash sha1 was not found.
Traceback (most recent call last):
  File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/hashlib.py", line 147, in <module>
    globals()[__func_name] = __get_hash(__func_name)
  File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor
    raise ValueError('unsupported hash type ' + name)
ValueError: unsupported hash type sha1
ERROR:root:code for hash sha224 was not found.
Traceback (most recent call last):
  File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/hashlib.py", line 147, in <module>
    globals()[__func_name] = __get_hash(__func_name)
  File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor
    raise ValueError('unsupported hash type ' + name)
ValueError: unsupported hash type sha224
ERROR:root:code for hash sha256 was not found.
Traceback (most recent call last):
  File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/hashlib.py", line 147, in <module>
    globals()[__func_name] = __get_hash(__func_name)
  File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor
    raise ValueError('unsupported hash type ' + name)
ValueError: unsupported hash type sha256
ERROR:root:code for hash sha384 was not found.
Traceback (most recent call last):
  File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/hashlib.py", line 147, in <module>
    globals()[__func_name] = __get_hash(__func_name)
  File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor
    raise ValueError('unsupported hash type ' + name)
ValueError: unsupported hash type sha384
ERROR:root:code for hash sha512 was not found.
Traceback (most recent call last):
  File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/hashlib.py", line 147, in <module>
    globals()[__func_name] = __get_hash(__func_name)
  File "/usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/lib/python2.7/hashlib.py", line 97, in __get_builtin_constructor
    raise ValueError('unsupported hash type ' + name)
ValueError: unsupported hash type sha512
Traceback (most recent call last):
  File "/usr/local/bin/aws", line 19, in <module>
    import awscli.clidriver
  File "/usr/local/lib/python2.7/site-packages/awscli/clidriver.py", line 17, in <module>
    import botocore.session
  File "/usr/local/lib/python2.7/site-packages/botocore/session.py", line 29, in <module>
    import botocore.configloader
  File "/usr/local/lib/python2.7/site-packages/botocore/configloader.py", line 19, in <module>
    from botocore.compat import six
  File "/usr/local/lib/python2.7/site-packages/botocore/compat.py", line 25, in <module>
    from botocore.exceptions import MD5UnavailableError
  File "/usr/local/lib/python2.7/site-packages/botocore/exceptions.py", line 15, in <module>
    from botocore.vendored import requests
  File "/usr/local/lib/python2.7/site-packages/botocore/vendored/requests/__init__.py", line 58, in <module>
    from . import utils
  File "/usr/local/lib/python2.7/site-packages/botocore/vendored/requests/utils.py", line 26, in <module>
    from .compat import parse_http_list as _parse_list_header
  File "/usr/local/lib/python2.7/site-packages/botocore/vendored/requests/compat.py", line 7, in <module>
    from .packages import chardet
  File "/usr/local/lib/python2.7/site-packages/botocore/vendored/requests/packages/__init__.py", line 3, in <module>
    from . import urllib3
  File "/usr/local/lib/python2.7/site-packages/botocore/vendored/requests/packages/urllib3/__init__.py", line 10, in <module>
    from .connectionpool import (
  File "/usr/local/lib/python2.7/site-packages/botocore/vendored/requests/packages/urllib3/connectionpool.py", line 31, in <module>
    from .connection import (
  File "/usr/local/lib/python2.7/site-packages/botocore/vendored/requests/packages/urllib3/connection.py", line 45, in <module>
    from .util.ssl_ import (
  File "/usr/local/lib/python2.7/site-packages/botocore/vendored/requests/packages/urllib3/util/__init__.py", line 5, in <module>
    from .ssl_ import (
  File "/usr/local/lib/python2.7/site-packages/botocore/vendored/requests/packages/urllib3/util/ssl_.py", line 2, in <module>
    from hashlib import md5, sha1, sha256
ImportError: cannot import name md5

我尝试了 this issue 的解决方案但它们不起作用:

brew reinstall python@2
==> Reinstalling python@2
Error: An exception occurred within a child process:
  FormulaUnavailableError: No available formula with the name "/usr/local/opt/python@2/.brew/python@2.rb"

我认为它可能没有安装，但它已经是:

brew install python@2
Warning: python@2 2.7.15_1 is already installed and up-to-date
To reinstall 2.7.15_1, run `brew reinstall python@2`

运行brew doctor显示 python不受欢迎，但正在运行 brew link python由于属于 python@2 的符号链接(symbolic link)而失败.

brew link python
Linking /usr/local/Cellar/python/3.7.6_1...
Error: Could not symlink Frameworks/Python.framework/Headers
Target /usr/local/Frameworks/Python.framework/Headers
is a symlink belonging to python@2. You can unlink it:
  brew unlink python@2

To force the link and overwrite all conflicting files:
  brew link --overwrite python

To list all files that would be deleted:
  brew link --overwrite --dry-run python

推荐的命令似乎是循环的，没有一个能够解决问题。我有点卡住了——如何从这些错误中恢复？

Answer 1

尝试使用 pip 时遇到与 brew install python2 错误类似的问题。

大概是因为

python@2 was deleted from homebrew/core in commit 028f11f9e:
python@2: delete (https://github.com/Homebrew/homebrew-core/issues/49796)
EOL 1 January 2020.

在这里看到这篇文章
https://github.com/Homebrew/homebrew-core/pull/49796更多细节。

为了解决这个问题，

运行 brew uninstall python@2要卸载 brew 安装的 python@2 这应该使默认的 python2 回退到 macOS 附带的 python2。

通过运行卸载当前的 aws cli

sudo rm -rf /usr/local/bin/aws

sudo rm -rf /usr/local/aws

rm AWSCLIV2.pkg

通过运行再次安装 aws cli

sudo curl "https://awscli.amazonaws.com/AWSCLIV2.pkg" -o "AWSCLIV2.pkg"

sudo installer -pkg AWSCLIV2.pkg -target /

如果你运行 aws --version你应该看到它链接到 python3而不是 python2 .

希望能帮助到你。