使用pip 7.1.2和Python 3.5完全無法安裝任何軟件包

Question

我遇到了一個主要問題，無法在虛擬環境中使用pip 7.1.2和Python 3.5設置開發人員環境。 首先，我什至無法更新pip ，更不用說安裝任何軟件包了，因為這總是相同的錯誤：

(venv) ➜  venv git:(master) ✗ pip install --upgrade pip
Collecting pip
Could not find a version that satisfies the requirement pip (from versions: )
No matching distribution found for pip

讓我們嘗試一個包含以下內容的requirements.txt文件：

pytz
django==1.11.4

產生的錯誤是相同的：

(venv) ➜  venv git:(master) ✗ pip install -r requirements.txt
Collecting pytz (from -r requirements.txt (line 1))
Could not find a version that satisfies the requirement pytz (from -r requirements.txt (line 1)) (from versions: )
No matching distribution found for pytz (from -r requirements.txt (line 1))

也許是因為缺少版本號？ 讓我們添加最新的正確軟件包版本2019.2 ，然后再從requirements.txt運行安裝一次。

(venv) ➜  venv git:(master) ✗ pip install -r requirements.txt     
Collecting pytz==2019.2 (from -r requirements.txt (line 1))
Could not find a version that satisfies the requirement pytz==2019.2 (from -r deploy/requirements.txt (line 1)) (from versions: )
No matching distribution found for pytz==2019.2 (from -r requirements.txt (line 1))

讓我們嘗試django ，不管有沒有版本號。

(venv) ➜  venv git:(master) ✗ pip install django
Collecting django
Could not find a version that satisfies the requirement django (from versions: )
No matching distribution found for django

Answer 1

似乎OSX上版本9.0.2下的pip與新pip服務器頒發的SSL證書不兼容。 要從這種情況手動升級pip ，您需要運行以下命令：

curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py python get-pip.py