无法使用 python3.7 和 pip3.7 安装烧瓶

Question

我正在尝试在具有 rhel7 的 linux 机器上使用 python pip 安装烧瓶

-> python3.7 --version
Python 3.7.2
-> pip3.7 --version
pip 18.1 from /usr/local/lib/python3.7/site-packages/pip (python 3.7)

问题：

-> pip3.7 安装烧瓶

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 0x7fad3a9f60b8>: Failed to establish a new connection: [Errno 101] Network is unreachable')': /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 0x7fad3a9f6128>: Failed to establish a new connection: [Errno 101] Network is unreachable')': /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 0x7fad3a9f6390>: Failed to establish a new connection: [Errno 101] Network is unreachable')': /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 0x7fad3a9f6358>: Failed to establish a new connection: [Errno 101] Network is unreachable')': /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 0x7fad3a9f64e0>: Failed to establish a new connection: [Errno 101] Network is unreachable')': /simple/flask/
  Could not find a version that satisfies the requirement flask (from versions: )
No matching distribution found for flask

我也尝试使用下面的命令，但同样的错误

python3.7 -m pip install flask

Answer 1

试试这个代码：

pip3 install flask

或者：

pip install flask

祝你好运。

Answer 2

我建议你看看这个Flask documentation page。如文档中所述，您需要 activate the environment 然后通过运行命令 pip install Flask 继续安装。

这个文档也提到了 Python 2.7。关注本文档时请记住这一点。