无法使用PIP和setup.py安装Python Cryptography软件包。

Question

9 浏览2023年5月25日

匿名的 2023年4月24日

0 Comments

尝试通过pip install cryptography或从官网下载该软件包并运行python setup.py安装Python的加密包时，我遇到以下错误：

D:\Anaconda\Scripts\pip-script.py run on 02/27/14 16:13:17
Downloading/unpacking cryptography
  Getting page https://pypi.python.org/simple/cryptography/
  URLs to search for versions for cryptography:
  * https://pypi.python.org/simple/cryptography/
  Analyzing links from page https://pypi.python.org/simple/cryptography/
    Skipping https://pypi.python.org/packages/cp26/c/cryptography/cryptography-0.2-cp26-none-win32.whl#md5=13e5c4b19520e7dc6f07c6502b3f74e2 (from https://pypi.python.org/simple/cryptography/) because it is not compatible with this Python
    Skipping https://pypi.python.org/packages/cp26/c/cryptography/cryptography-0.2.1-cp26-none-win32.whl#md5=00e733648ee5cdb9e58876238b1328f8 (from https://pypi.python.org/simple/cryptography/) because it is not compatible with this Python
    Skipping https://pypi.python.org/packages/cp27/c/cryptography/cryptography-0.2-cp27-none-win32.whl#md5=013ccafa6a5a3ea92c73f2c1c4879406 (from https://pypi.python.org/simple/cryptography/) because it is not compatible with this Python
    Skipping https://pypi.python.org/packages/cp27/c/cryptography/cryptography-0.2.1-cp27-none-win32.whl#md5=127d6a5dc687250721f892d55720a06c (from https://pypi.python.org/simple/cryptography/) because it is not compatible with this Python
    Skipping https://pypi.python.org/packages/cp32/c/cryptography/cryptography-0.2-cp32-none-win32.whl#md5=051424a36e91039807b72f112333ded3 (from https://pypi.python.org/simple/cryptography/) because it is not compatible with this Python
    Skipping https://pypi.python.org/packages/cp32/c/cryptography/cryptography-0.2.1-cp32-none-win32.whl#md5=53f6f57db8e952d64283baaa14cbde3d (from https://pypi.python.org/simple/cryptography/) because it is not compatible with this Python
    Skipping https://pypi.python.org/packages/cp33/c/cryptography/cryptography-0.2-cp33-none-win32.whl#md5=302812c1c1a035cf9ba3292f8dbf3f9e (from https://pypi.python.org/simple/cryptography/) because it is not compatible with this Python
    Skipping https://pypi.python.org/packages/cp33/c/cryptography/cryptography-0.2.1-cp33-none-win32.whl#md5=81acca90caf8a45f2ca73f3f9859fae4 (from https://pypi.python.org/simple/cryptography/) because it is not compatible with this Python
    Found link https://pypi.python.org/packages/source/c/cryptography/cryptography-0.1.tar.gz#md5=bdc1c5fe069deca7467b71a0cc538f17 (from https://pypi.python.org/simple/cryptography/), version: 0.1
    Found link https://pypi.python.org/packages/source/c/cryptography/cryptography-0.2.1.tar.gz#md5=872fc04268dadc66a0305ae5ab1c123b (from https://pypi.python.org/simple/cryptography/), version: 0.2.1
    Found link https://pypi.python.org/packages/source/c/cryptography/cryptography-0.2.tar.gz#md5=8a3d21e837a21e1b7634ee1f22b06bb6 (from https://pypi.python.org/simple/cryptography/), version: 0.2
  Using version 0.2.1 (newest of versions: 0.2.1, 0.2, 0.1)
  Downloading from URL https://pypi.python.org/packages/source/c/cryptography/cryptography-0.2.1.tar.gz#md5=872fc04268dadc66a0305ae5ab1c123b (from https://pypi.python.org/simple/cryptography/)
  Running setup.py (path:c:\users\paco\appdata\local\temp\pip_build_Paco\cryptography\setup.py) egg_info for package cryptography
    In file included from c/_cffi_backend.c:7:0:
    c/misc_win32.h:225:23: error: two or more data types in declaration specifiers
    c/misc_win32.h:225:1: warning: useless type name in empty declaration [enabled by default]
    c/_cffi_backend.c: In function 'convert_array_from_object':
    c/_cffi_backend.c:1105:26: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:1105:26: warning: too many arguments for format [-Wformat-extra-args]
    c/_cffi_backend.c:1130:30: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:1130:30: warning: too many arguments for format [-Wformat-extra-args]
    c/_cffi_backend.c:1150:30: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:1150:30: warning: too many arguments for format [-Wformat-extra-args]
    c/_cffi_backend.c: In function 'convert_struct_from_object':
    c/_cffi_backend.c:1183:26: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:1183:26: warning: too many arguments for format [-Wformat-extra-args]
    c/_cffi_backend.c:1196:30: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:1196:30: warning: too many arguments for format [-Wformat-extra-args]
    c/_cffi_backend.c: In function 'cdata_repr':
    c/_cffi_backend.c:1583:13: warning: unknown conversion type character 'L' in format [-Wformat]
    c/_cffi_backend.c:1583:13: warning: too many arguments for format [-Wformat-extra-args]
    c/_cffi_backend.c:1595:9: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:1595:9: warning: too many arguments for format [-Wformat-extra-args]
    c/_cffi_backend.c: In function 'cdataowning_repr':
    c/_cffi_backend.c:1647:30: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:1647:30: warning: too many arguments for format [-Wformat-extra-args]
    c/_cffi_backend.c: In function '_cdata_get_indexed_ptr':
    c/_cffi_backend.c:1820:26: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:1820:26: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:1820:26: warning: too many arguments for format [-Wformat-extra-args]
    c/_cffi_backend.c: In function '_cdata_getslicearg':
    c/_cffi_backend.c:1872:26: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:1872:26: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:1872:26: warning: too many arguments for format [-Wformat-extra-args]
    c/_cffi_backend.c: In function 'cdata_ass_slice':
    c/_cffi_backend.c:1951:26: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:1951:26: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:1951:26: warning: too many arguments for format [-Wformat-extra-args]
    c/_cffi_backend.c:1969:30: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:1969:30: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:1969:30: warning: too many arguments for format [-Wformat-extra-args]
    c/_cffi_backend.c:1983:22: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:1983:22: warning: too many arguments for format [-Wformat-extra-args]
    c/_cffi_backend.c: In function 'cdata_call':
    c/_cffi_backend.c:2367:30: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:2367:30: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'Py_ssize_t' [-Wformat]
    c/_cffi_backend.c:2367:30: warning: too many arguments for format [-Wformat-extra-args]
    c/_cffi_backend.c: In function 'cast_to_integer_or_char':
    c/_cffi_backend.c:2916:26: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:2916:26: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'Py_ssize_t' [-Wformat]
    c/_cffi_backend.c:2916:26: warning: too many arguments for format [-Wformat-extra-args]
    c/_cffi_backend.c:2928:26: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:2928:26: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'Py_ssize_t' [-Wformat]
    c/_cffi_backend.c:2928:26: warning: too many arguments for format [-Wformat-extra-args]
    c/_cffi_backend.c: In function 'new_array_type':
    c/_cffi_backend.c:3480:9: warning: unknown conversion type character 'l' in format [-Wformat]
    c/_cffi_backend.c:3480:9: warning: too many arguments for format [-Wformat-extra-args]
    c/_cffi_backend.c: In function 'b_complete_struct_or_union':
    c/_cffi_backend.c:3878:22: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:3878:22: warning: unknown conversion type character 'z' in format [-Wformat]
    c/_cffi_backend.c:3878:22: warning: too many arguments for format [-Wformat-extra-args]
    Traceback (most recent call last):
      File "", line 17, in 
      File "c:\users\paco\appdata\local\temp\pip_build_Paco\cryptography\setup.py", line 113, in 
        "build": cffi_build,
      File "D:\Anaconda\lib\distutils\core.py", line 112, in setup
        _setup_distribution = dist = klass(attrs)
      File "build\bdist.win-amd64\egg\setuptools\dist.py", line 239, in __init__
      File "build\bdist.win-amd64\egg\setuptools\dist.py", line 264, in fetch_build_eggs
      File "build\bdist.win-amd64\egg\pkg_resources.py", line 580, in resolve
        dist = best[req.key] = env.best_match(req, ws, installer)
      File "build\bdist.win-amd64\egg\pkg_resources.py", line 818, in best_match
        return self.obtain(req, installer) # try and download/install
      File "build\bdist.win-amd64\egg\pkg_resources.py", line 830, in obtain
        return installer(requirement)
      File "build\bdist.win-amd64\egg\setuptools\dist.py", line 314, in fetch_build_egg
      File "build\bdist.win-amd64\egg\setuptools\command\easy_install.py", line 593, in easy_install
      File "build\bdist.win-amd64\egg\setuptools\command\easy_install.py", line 623, in install_item
      File "build\bdist.win-amd64\egg\setuptools\command\easy_install.py", line 809, in install_eggs
      File "build\bdist.win-amd64\egg\setuptools\command\easy_install.py", line 1015, in build_and_install
      File "build\bdist.win-amd64\egg\setuptools\command\easy_install.py", line 1003, in run_setup
    distutils.errors.DistutilsError: Setup script exited with error: command 'gcc' failed with exit status 1
    Complete output from command python setup.py egg_info:
    In file included from c/_cffi_backend.c:7:0:
c/misc_win32.h:225:23: error: two or more data types in declaration specifiers
c/misc_win32.h:225:1: warning: useless type name in empty declaration [enabled by default]
c/_cffi_backend.c: In function 'convert_array_from_object':
c/_cffi_backend.c:1105:26: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:1105:26: warning: too many arguments for format [-Wformat-extra-args]
c/_cffi_backend.c:1130:30: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:1130:30: warning: too many arguments for format [-Wformat-extra-args]
c/_cffi_backend.c:1150:30: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:1150:30: warning: too many arguments for format [-Wformat-extra-args]
c/_cffi_backend.c: In function 'convert_struct_from_object':
c/_cffi_backend.c:1183:26: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:1183:26: warning: too many arguments for format [-Wformat-extra-args]
c/_cffi_backend.c:1196:30: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:1196:30: warning: too many arguments for format [-Wformat-extra-args]
c/_cffi_backend.c: In function 'cdata_repr':
c/_cffi_backend.c:1583:13: warning: unknown conversion type character 'L' in format [-Wformat]
c/_cffi_backend.c:1583:13: warning: too many arguments for format [-Wformat-extra-args]
c/_cffi_backend.c:1595:9: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:1595:9: warning: too many arguments for format [-Wformat-extra-args]
c/_cffi_backend.c: In function 'cdataowning_repr':
c/_cffi_backend.c:1647:30: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:1647:30: warning: too many arguments for format [-Wformat-extra-args]
c/_cffi_backend.c: In function '_cdata_get_indexed_ptr':
c/_cffi_backend.c:1820:26: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:1820:26: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:1820:26: warning: too many arguments for format [-Wformat-extra-args]
c/_cffi_backend.c: In function '_cdata_getslicearg':
c/_cffi_backend.c:1872:26: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:1872:26: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:1872:26: warning: too many arguments for format [-Wformat-extra-args]
c/_cffi_backend.c: In function 'cdata_ass_slice':
c/_cffi_backend.c:1951:26: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:1951:26: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:1951:26: warning: too many arguments for format [-Wformat-extra-args]
c/_cffi_backend.c:1969:30: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:1969:30: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:1969:30: warning: too many arguments for format [-Wformat-extra-args]
c/_cffi_backend.c:1983:22: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:1983:22: warning: too many arguments for format [-Wformat-extra-args]
c/_cffi_backend.c: In function 'cdata_call':
c/_cffi_backend.c:2367:30: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:2367:30: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'Py_ssize_t' [-Wformat]
c/_cffi_backend.c:2367:30: warning: too many arguments for format [-Wformat-extra-args]
c/_cffi_backend.c: In function 'cast_to_integer_or_char':
c/_cffi_backend.c:2916:26: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:2916:26: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'Py_ssize_t' [-Wformat]
c/_cffi_backend.c:2916:26: warning: too many arguments for format [-Wformat-extra-args]
c/_cffi_backend.c:2928:26: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:2928:26: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'Py_ssize_t' [-Wformat]
c/_cffi_backend.c:2928:26: warning: too many arguments for format [-Wformat-extra-args]
c/_cffi_backend.c: In function 'new_array_type':
c/_cffi_backend.c:3480:9: warning: unknown conversion type character 'l' in format [-Wformat]
c/_cffi_backend.c:3480:9: warning: too many arguments for format [-Wformat-extra-args]
c/_cffi_backend.c: In function 'b_complete_struct_or_union':
c/_cffi_backend.c:3878:22: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:3878:22: warning: unknown conversion type character 'z' in format [-Wformat]
c/_cffi_backend.c:3878:22: warning: too many arguments for format [-Wformat-extra-args]
Traceback (most recent call last):
  File "", line 17, in 
  File "c:\users\paco\appdata\local\temp\pip_build_Paco\cryptography\setup.py", line 113, in 
    "build": cffi_build,
  File "D:\Anaconda\lib\distutils\core.py", line 112, in setup
    _setup_distribution = dist = klass(attrs)
  File "build\bdist.win-amd64\egg\setuptools\dist.py", line 239, in __init__
  File "build\bdist.win-amd64\egg\setuptools\dist.py", line 264, in fetch_build_eggs
  File "build\bdist.win-amd64\egg\pkg_resources.py", line 580, in resolve
    dist = best[req.key] = env.best_match(req, ws, installer)
  File "build\bdist.win-amd64\egg\pkg_resources.py", line 818, in best_match
    return self.obtain(req, installer) # try and download/install
  File "build\bdist.win-amd64\egg\pkg_resources.py", line 830, in obtain
    return installer(requirement)
  File "build\bdist.win-amd64\egg\setuptools\dist.py", line 314, in fetch_build_egg
  File "build\bdist.win-amd64\egg\setuptools\command\easy_install.py", line 593, in easy_install
  File "build\bdist.win-amd64\egg\setuptools\command\easy_install.py", line 623, in install_item
  File "build\bdist.win-amd64\egg\setuptools\command\easy_install.py", line 809, in install_eggs
  File "build\bdist.win-amd64\egg\setuptools\command\easy_install.py", line 1015, in build_and_install
  File "build\bdist.win-amd64\egg\setuptools\command\easy_install.py", line 1003, in run_setup
distutils.errors.DistutilsError: Setup script exited with error: command 'gcc' failed with exit status 1
----------------------------------------
Cleaning up...
  Removing temporary dir c:\users\paco\appdata\local\temp\pip_build_Paco...
Command python setup.py egg_info failed with error code 1 in c:\users\paco\appdata\local\temp\pip_build_Paco\cryptography
Exception information:
Traceback (most recent call last):
  File "D:\Anaconda\lib\site-packages\pip-1.5.4-py2.7.egg\pip\basecommand.py", line 122, in main
    status = self.run(options, args)
  File "D:\Anaconda\lib\site-packages\pip-1.5.4-py2.7.egg\pip\commands\install.py", line 278, in run
    requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
  File "D:\Anaconda\lib\site-packages\pip-1.5.4-py2.7.egg\pip\req.py", line 1229, in prepare_files
    req_to_install.run_egg_info()
  File "D:\Anaconda\lib\site-packages\pip-1.5.4-py2.7.egg\pip\req.py", line 325, in run_egg_info
    command_desc='python setup.py egg_info')
  File "D:\Anaconda\lib\site-packages\pip-1.5.4-py2.7.egg\pip\util.py", line 697, in call_subprocess
    % (command_desc, proc.returncode, cwd))
InstallationError: Command python setup.py egg_info failed with error code 1 in c:\users\paco\appdata\local\temp\pip_build_Paco\cryptography

我发现了其他的egg_info错误帖子（这里和这里），但那里提供的解决方案无法解决我的问题。另外，我能够通过PIP安装其他软件包。

PIP版本1.5.4，setuptools版本2.2

admin 更改状态以发布 2023年5月25日

0

2 答案

匿名的 · Answer 1 · 2023-04-24T20:57:58+00:00

这是加密学安装文档页面中所提供的信息的简化版本。请查阅该页面获取最新细节。

由于这个SO问题不断出现，我将在这里回复（我是pyca/cryptography的开发人员之一）。以下是在3个主要平台上可靠安装pyca/cryptography的方法。

请注意，在所有这些情况下，强烈建议您安装到虚拟环境中而不是全局包空间中。这不仅适用于cryptography，而是一般性建议，以保持您的Python安装的可靠性。操作系统提供的Python的全局包空间由系统拥有，在其中通过pip安装东西会让您麻烦不断。

Windows

升级到最新版pip，然后只需pip install cryptography

cryptography和cffi都作为静态链接的wheels提供。

macOS（OS X）

升级到最新版pip，然后只需pip install cryptography

cryptography和cffi都作为静态链接的wheels提供。这适用于pyenv Python、系统Python、homebrew Python等。只要您运行的是最新版pip，您甚至不需要编译器。

Linux

在基于glibc或musl的分布式环境中，对于x86/x86-64/aarch64的用户，如果您运行的是最新版pip（升级！），则无需编译器或头文件，因为你会自动获得一个预编译的wheel。因此，您首先应该尝试升级您的pip，并安装最新版本的cryptography，因为旧版本不支持新的wheel类型。

如果您不符合manylinux/musllinux兼容性或希望针对自己的OpenSSL进行编译，则需要执行以下操作：

您需要一个C编译器、一个Rust编译器、libffi及其开发头文件，以及openssl及其开发头文件。

Debian或Ubuntu衍生的分布式环境

apt-get install build-essential libssl-dev libffi-dev python-dev，然后执行

pip install cryptography

Red Hat衍生分布式环境

yum install gcc openssl-devel libffi-devel python-devel，然后执行

pip install cryptography

请注意，自版本3.4以来，cryptography现在需要在构建时使用Rust编译器（而不是运行时），因此您还需要Rust >= 1.41.0。检查您的分布式环境的rust或通过rustup安装它。

匿名的 · Answer 2 · 2023-04-24T20:57:58+00:00

我有一个类似的问题，并发现我缺少一个依赖项（对我来说是libssl-dev）。根据https://cryptography.io/en/latest/installation/中的引用，请确保满足所有依赖项：

在Windows上

如果你在Windows上，你需要确保你安装了OpenSSL。已经有编译好的二进制文件可用。如果你的安装在一个不寻常的位置，请设置LIB和INCLUDE环境变量以包括对应的位置。例如：

C:\> \path\to\vcvarsall.bat x86_amd64
C:\> set LIB=C:\OpenSSL-1.0.1f-64bit\lib;%LIB%
C:\> set INCLUDE=C:\OpenSSL-1.0.1f-64bit\include;%INCLUDE%
C:\> pip install cryptography

在Linux上构建cryptography

cryptography在Linux上应该很容易构建，前提是你的系统上有C编译器、Python的头文件（如果你没有使用pypy）以及OpenSSL和libffi库的头文件。

对于Debian和Ubuntu，以下命令将确保安装所需的依赖项：

sudo apt-get install build-essential libssl-dev libffi-dev python-dev

对于Fedora和RHEL推导的，以下命令将确保安装所需的依赖项：

sudo yum install gcc libffi-devel python-devel OpenSSL-devel

现在，你应该能够像往常一样构建和安装cryptography了。

pip install cryptography