Question

我正在运行一个运行OpenWRT的Arduino Yun，这是Linux的变体。

在这台设备上，我已经安装了多个软件包，例如crypto，pycrypto，pyOpenSSL等。

当我运行pip install cryptography时：

Collecting cryptography
  Retrying (Retry(total=4, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x76895850>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/cryptography/
  Retrying (Retry(total=3, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x768950f0>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/cryptography/
  Retrying (Retry(total=2, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x768951d0>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/cryptography/
  Retrying (Retry(total=1, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x76895650>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/cryptography/
  Retrying (Retry(total=0, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x76895a10>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/cryptography/
  Could not find a version that satisfies the requirement cryptography (from versions: )
No matching distribution found for cryptography

当我运行pip show cryptography时，它会返回一个空白。

当我运行pip show pip（进行比较）时：

---
Metadata-Version: 1.1
Name: pip
Version: 8.1.2
...

当我运行pip search cryptography时：

Retrying (Retry(total=4, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x76d48690>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /pypi
Retrying (Retry(total=3, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x76d3dc90>: Failed to establish a new connection: [Errno -2] Name or service not known',)': /pypi
^COperation cancelled by user

相比之下，我尝试了另一个包：pip install crypto：

Requirement already satisfied (use --upgrade to upgrade): crypto in /usr/lib/python2.7/site-packages
Requirement already satisfied (use --upgrade to upgrade): shellescape in /usr/lib/python2.7/site-packages (from crypto)
Requirement already satisfied (use --upgrade to upgrade): Naked in /usr/lib/python2.7/site-packages (from crypto)
Requirement already satisfied (use --upgrade to upgrade): requests in /usr/lib/python2.7/site-packages (from Naked->crypto)
Requirement already satisfied (use --upgrade to upgrade): pyyaml in /usr/lib/python2.7/site-packages (from Naked->crypto)

知道这里发生了什么，以及如何成功安装加密技术？

Answer 1

很明显你有网络问题。这不正常：

'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x76895850>: Failed to establish a new connection: [Errno -2] Name or service not known'

请勿安装密码学

1 个答案: