尽管我们安装了本地 pkg，但 pip install 因“名称解析中的临时失败”而失败

Question

我们想通过 pip 安装 Jinja2-2.10-py2.py3-none-any.whl 包 - 在新的 REDHAT 操作系统（版本 7.2）上

pip install Jinja2-2.10-py2.py3-none-any.whl
Processing ./Jinja2-2.10-py2.py3-none-any.whl
Collecting MarkupSafe>=0.23 (from Jinja2==2.10)
  Retrying (Retry(total=4, connect=None, read=None, redirect=None)) after connection broken by 'ProtocolError('Connection aborted.', gaierror(-3, 'Temporary failure in name resolution'))': /simple/markupsafe/

我不明白为什么在我们想通过 pip 安装 - Jinja2-2.10-py2.py3-none-any.whl 软件包时 pip 因“名称解析暂时失败”而失败？

我们还尝试了以下方法，但没有成功：

pip install --no-index --find-links  Jinja2-2.10-py2.py3-none-any.whl
Ignoring indexes: https://pypi.python.org/simple
You must give at least one requirement to install (maybe you meant "pip install Jinja2-2.10-py2.py3-none-any.whl"?)

pip install --no-index /tmp/install/Jinja2-2.10-py2.py3-none-any.whl
Ignoring indexes: https://pypi.python.org/simple
Processing ./Jinja2-2.10-py2.py3-none-any.whl
Collecting MarkupSafe>=0.23 (from Jinja2==2.10)
  Could not find a version that satisfies the requirement MarkupSafe>=0.23 (from Jinja2==2.10) (from versions: )
No matching distribution found for MarkupSafe>=0.23 (from Jinja2==2.10)

 pip install -U Jinja2-2.10-py2.py3-none-any.whl
Processing ./Jinja2-2.10-py2.py3-none-any.whl
Collecting MarkupSafe>=0.23 (from Jinja2==2.10)
  Retrying (Retry(total=4, connect=None, read=None, redirect=None)) after connection broken by 'ProtocolError('Connection aborted.', gaierror(-3, 'Temporary failure in name resolution'))': /simple/markupsafe/

 pip install -e  Jinja2-2.10-py2.py3-none-any.whl
Jinja2-2.10-py2.py3-none-any.whl should either be a path to a local project or a VCS url beginning with svn+, git+, hg+, or bzr+

在这种情况下 PIP - 是本地文件夹

pip install -e PIP/Jinja2-2.10-py2.py3-none-any.whl
PIP/Jinja2-2.10-py2.py3-none-any.whl should either be a path to a local project or a VCS url beginning with svn+, git+, hg+, or bzr+

更新

[root@Master install_zone]# ls PIP/
Jinja2-2.10-py2.py3-none-any.whl

[root@Master install_zone]#  pip install --no-index --find-links=./PIP Jinja2
Ignoring indexes: https://pypi.python.org/simple
Collecting Jinja2
Collecting MarkupSafe>=0.23 (from Jinja2)
  Could not find a version that satisfies the requirement MarkupSafe>=0.23 (from Jinja2) (from versions: )
No matching distribution found for MarkupSafe>=0.23 (from Jinja2)
[root@Master install_zone]#

我们检查解析为：（详细信息来自 /etc/resolv.conf）

[root@Master install_zone]# host  sys54.com
sys54.com has address 32.44.1.154
[root@Master install_zone]# host 32.44.1.154
17.2.21.10.in-addr.arpa domain name pointer mpsload.sys54.com.

Answer 1

您的命令有点错误，find-links 参数应该指向包所在的目录，而不是包本身：

-f, --find-links 如果是 html 文件的 url 或路径，则 解析档案链接。如果本地路径或文件：// url 是 目录，然后在其中查找存档 目录列表。

pip install --no-index --find-links Jinja2-2.10-py2.py3-none-any.whl 上方是指示 pip 在 Jinja2-2.10-py2.py3-none-any.whl 目录中查找包，但您没有告诉 pip 要安装什么。

假设您将文件下载到名为 PIP 的子目录中，您的命令应该是：pip install --no-index --find-links=./PIP Jinja2