pip：将依赖项下载到特定平台，包括非二进制文件

Question

我正在尝试将paramikoLinux主机的依赖项下载到无法访问Internet的Windows目标。

阅读pip文档上的示例后，我习惯于执行以下命令，以便将依赖项递归下载到64位Windows平台：

pip3 download --only-binary=:all: --platform win_amd64 --implementation cp paramiko

能够递归下载依赖项，直到到达pycparser。由于使用了该--only-binary=:all:标志，这并不奇怪。是- 传递pip标志时强制使用此标志--platform：

ERROR: --only-binary=:all: must be set and --no-binary must not be set (or must be set to :none:) when restricting platform and interpreter constraints using --python-version, --platform, --abi, or --implementation.

终端产生以下输出：

Collecting paramiko
  Downloading paramiko-2.3.0-py2.py3-none-any.whl (182kB)
    100% |????????????????????????????????| 184kB 340kB/s 
  Saved ./paramiko-2.3.0-py2.py3-none-any.whl
Collecting pynacl>=1.0.1 (from paramiko)
  Using cached PyNaCl-1.1.2-cp35-cp35m-win_amd64.whl
  Saved ./PyNaCl-1.1.2-cp35-cp35m-win_amd64.whl
Collecting cryptography>=1.5 (from paramiko)
  Using cached cryptography-2.0.3-cp35-cp35m-win_amd64.whl
  Saved ./cryptography-2.0.3-cp35-cp35m-win_amd64.whl
Collecting pyasn1>=0.1.7 (from paramiko)
  Using cached pyasn1-0.3.5-py2.py3-none-any.whl
  Saved ./pyasn1-0.3.5-py2.py3-none-any.whl
Collecting bcrypt>=3.1.3 (from paramiko)
  Using cached bcrypt-3.1.3-cp35-cp35m-win_amd64.whl
  Saved ./bcrypt-3.1.3-cp35-cp35m-win_amd64.whl
Collecting cffi>=1.4.1 (from pynacl>=1.0.1->paramiko)
  Using cached cffi-1.11.0-cp35-cp35m-win_amd64.whl
  Saved ./cffi-1.11.0-cp35-cp35m-win_amd64.whl
Collecting six (from pynacl>=1.0.1->paramiko)
  Using cached six-1.11.0-py2.py3-none-any.whl
  Saved ./six-1.11.0-py2.py3-none-any.whl
Collecting asn1crypto>=0.21.0 (from cryptography>=1.5->paramiko)
  Using cached asn1crypto-0.22.0-py2.py3-none-any.whl
  Saved ./asn1crypto-0.22.0-py2.py3-none-any.whl
Collecting idna>=2.1 (from cryptography>=1.5->paramiko)
  Using cached idna-2.6-py2.py3-none-any.whl
  Saved ./idna-2.6-py2.py3-none-any.whl
Collecting pycparser (from cffi>=1.4.1->pynacl>=1.0.1->paramiko)
  Could not find a version that satisfies the requirement pycparser (from cffi>=1.4.1->pynacl>=1.0.1->paramiko) (from versions: )
No matching distribution found for pycparser (from cffi>=1.4.1->pynacl>=1.0.1->paramiko)

有没有办法解决这个问题？我是否必须手动安装非二进制软件包（及其依赖项）？

谢谢，乔伊。

Answer 1

您有两个选择：

1. 在同一平台上运行下载操作（注意要相同）
2. 修复主机上的互联网访问

不要尝试其他奇特的方法，否则你会把自己困在脚下：一些依赖项需要编译！