找不到满足要求的版本（来自版本：）找不到flas的匹配分发版

Question

使用pip安装包时发生异常。我试着安装纽比，烧瓶和其他的。但在错误之下。

C:\Users\ABC>pip install flask
Collecting flask
  Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x0667CB50>: Failed to establish a new connection: [Errno 11002] getaddrinfo failed')': /simple/flask/
  Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x0667C190>: Failed to establish a new connection: [Errno 11002] getaddrinfo failed')': /simple/flask/
  Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x0667C7F0>: Failed to establish a new connection: [Errno 11002] getaddrinfo failed')': /simple/flask/
  Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x0667C8F0>: Failed to establish a new connection: [Errno 11002] getaddrinfo failed')': /simple/flask/
  Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x0667C0F0>: Failed to establish a new connection: [Errno 11002] getaddrinfo failed')': /simple/flask/
  Could not find a version that satisfies the requirement flask (from versions: )
No matching distribution found for flask

请帮忙解决。 Pip版本是18.1 Python版本是3.7

Answer 1

对于当前版本v1.0.2Python 3.7is not supported yet。它的支持确实存在于master branch中，但尚未发布。

Answer 2

好吧，这是一个黑客，我总是遵循，但每次工作-我需要，因为我的公司网络背后是沉重的分层安全。

每次需要安装pip pkgs时，请事先从cmd中运行以下命令（不需要管理员身份）：

set http_proxy=http://your_corp_username:password@<your_corp_proxy_host>:<port>
set https_proxy=https://your_corp_username:password@<your_corp_proxy_host>:<port>

然后运行通常的pip命令。

如果pip抛出一些SSL信任/解析错误。您还可以通过网络执行以下操作来信任pip：

pip --trusted-host=pypi.python.org --trusted-host=pypi.org --trusted-host=files.pythonhosted.org install <some_package>

使用以下命令仅在当前用户下安装软件包（这不需要管理员权限）

pip --trusted-host=pypi.python.org --trusted-host=pypi.org --trusted-host=files.pythonhosted.org install <some_package>  --user

Answer 3

你的“f”应该是“f”：

pip install Flask