自制程序升級到Python 2.7.10_2導致程序包失敗並顯示“未找到圖像”

Question

更新Homebrew后使用

brew update
brew upgrade --all

導致Python更新到2.7.10_2，pip（以及許多其他腳本）失敗了

cffi.ffiplatform.VerificationError: importing '/usr/local/lib/python2.7/site-packages/cryptography/_Cryptography_cffi_a269d620xd5c405b7.so': dlopen(/usr/local/lib/python2.7/site-packages/cryptography/_Cryptography_cffi_a269d620xd5c405b7.so, 2): Library not loaded: /usr/local/lib/libssl.1.0.0.dylib
  Referenced from: /usr/local/lib/python2.7/site-packages/cryptography/_Cryptography_cffi_a269d620xd5c405b7.so
  Reason: image not found

我該怎么做才能恢復或調整我的Python配置，以便它再次運行？ Homebrew做了什么摧毀了它？

---

Traceback (most recent call last):
  File "/usr/local/bin/eb", line 7, in <module>
    from ebcli.core.ebcore import main
  File "/usr/local/lib/python2.7/site-packages/ebcli/core/ebcore.py", line 43, in <module>
    from . import globals, base, io, hooks
  File "/usr/local/lib/python2.7/site-packages/ebcli/core/hooks.py", line 20, in <module>
    from ..lib import aws
  File "/usr/local/lib/python2.7/site-packages/ebcli/lib/aws.py", line 19, in <module>
    import botocore.session
  File "/usr/local/lib/python2.7/site-packages/ebcli/bundled/botocore/session.py", line 27, in <module>
    import botocore.credentials
  File "/usr/local/lib/python2.7/site-packages/ebcli/bundled/botocore/credentials.py", line 30, in <module>
    from botocore.utils import InstanceMetadataFetcher, parse_key_val_file
  File "/usr/local/lib/python2.7/site-packages/ebcli/bundled/botocore/utils.py", line 25, in <module>
    from botocore.vendored import requests
  File "/usr/local/lib/python2.7/site-packages/ebcli/bundled/botocore/vendored/requests/__init__.py", line 53, in <module>
    from .packages.urllib3.contrib import pyopenssl
  File "/usr/local/lib/python2.7/site-packages/ebcli/bundled/botocore/vendored/requests/packages/urllib3/contrib/pyopenssl.py", line 55, in <module>
    import OpenSSL.SSL
  File "/usr/local/lib/python2.7/site-packages/OpenSSL/__init__.py", line 8, in <module>
    from OpenSSL import rand, crypto, SSL
  File "/usr/local/lib/python2.7/site-packages/OpenSSL/rand.py", line 11, in <module>
    from OpenSSL._util import (
  File "/usr/local/lib/python2.7/site-packages/OpenSSL/_util.py", line 7, in <module>
    binding = Binding()
  File "/usr/local/lib/python2.7/site-packages/cryptography/hazmat/bindings/openssl/binding.py", line 114, in __init__
    self._ensure_ffi_initialized()
  File "/usr/local/lib/python2.7/site-packages/cryptography/hazmat/bindings/openssl/binding.py", line 126, in _ensure_ffi_initialized
    cls._modules,
  File "/usr/local/lib/python2.7/site-packages/cryptography/hazmat/bindings/utils.py", line 31, in load_library_for_binding
    lib = ffi.verifier.load_library()
  File "/usr/local/lib/python2.7/site-packages/cffi/verifier.py", line 97, in load_library
    return self._load_library()
  File "/usr/local/lib/python2.7/site-packages/cffi/verifier.py", line 207, in _load_library
    return self._vengine.load_library()
  File "/usr/local/lib/python2.7/site-packages/cffi/vengine_cpy.py", line 155, in load_library
    raise ffiplatform.VerificationError(error)
cffi.ffiplatform.VerificationError: importing '/usr/local/lib/python2.7/site-packages/cryptography/_Cryptography_cffi_a269d620xd5c405b7.so': dlopen(/usr/local/lib/python2.7/site-packages/cryptography/_Cryptography_cffi_a269d620xd5c405b7.so, 2): Library not loaded: /usr/local/lib/libssl.1.0.0.dylib
  Referenced from: /usr/local/lib/python2.7/site-packages/cryptography/_Cryptography_cffi_a269d620xd5c405b7.so
  Reason: image not found

OSX 10.10.4; 自制語0.9.5

Answer 1

蒂姆史密斯的答案是正確的（他是一個自制的維護者！）但它沒有提供實際的修復。 在梳理完這些問題后， https：//github.com/Homebrew/homebrew/issues/41613和https://github.com/pyca/cryptography/issues/2138以下內容應該讓你的python/pip再次使用openssl

brew link openssl --force
pip uninstall cryptography
pip install cryptography --no-use-wheel
brew unlink openssl

第一個鏈接暫時修復了pip。 密碼學是需要重建的庫。 最后再取消openssl的聯系。

Answer 2

這是一次性錯誤，其原因是：1）我們決定刪除OpenSSL的“僅keg”名稱，然后2）我們發現它創建了顯着的不兼容性后，我們隨后退出該決定。 如果你在OpenSSL不是keg-only期間從源代碼打開了openssl的東西，那么需要重建它。 這是因為普通軟件包的install_names是相對於HOMEBREW_PREFIX而且僅keg軟件包沒有鏈接到HOMEBREW_PREFIX。 （僅限桶的軟件包具有指向私有前綴的install_names。）對於給您帶來的不便，我深感抱歉。