新建了个virtual env,在安装一个项目的依赖时报错:
$ pip install -r requirements.txt
Collecting setuptools==3.4.4 (from -r requirements.txt (line 1))
Could not fetch URL https://pypi.python.org/simple/setuptools/: There was a problem confirming the ssl certificate: [SSL: TLSV1_ALERT_PROTOCOL_VERSION] tlsv1 alert protocol version (_ssl.c:590) - skipping
Could not find a version that satisfies the requirement setuptools==3.4.4 (from -r requirements.txt (line 1)) (from versions: )
No matching distribution found for setuptools==3.4.4 (from -r requirements.txt (line 1))
我的pip版本还是9.0.1,升级到最新版就可以解决了。但升级的时候还遇到另一个问题:
$ pip install --upgrade pip
Could not fetch URL https://pypi.python.org/simple/pip/: There was a problem confirming the ssl certificate: [SSL: TLSV1_ALERT_PROTOCOL_VERSION] tlsv1 alert protocol version (_ssl.c:590) - skipping
Requirement already up-to-date: pip in /Users/quanlong.huang/workspace/flask/hawkeye-web/lib/python2.7/site-packages
可以改为直接下载get-pip.py并安装:
$ wget https://bootstrap.pypa.io/get-pip.py --no-check-certificate
$ python2 get-pip.py