使用 pip 安装 SSLError

Question

我正在尝试在 windows 10 上安装 Django。

无论我尝试在 cmd 上使用 pip 安装什么，我都会收到这些错误

Collecting django
  Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: WRONG_VERSION_NUMBER] wrong version number (_ssl.c:1056)'))': /simple/django/
  Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: WRONG_VERSION_NUMBER] wrong version number (_ssl.c:1056)'))': /simple/django/
  Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: WRONG_VERSION_NUMBER] wrong version number (_ssl.c:1056)'))': /simple/django/
  Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: WRONG_VERSION_NUMBER] wrong version number (_ssl.c:1056)'))': /simple/django/
  Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLError(1, '[SSL: WRONG_VERSION_NUMBER] wrong version number (_ssl.c:1056)'))': /simple/django/
  Could not fetch URL https://pypi.org/simple/django/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/django/ (Caused by SSLError(SSLError(1, '[SSL: WRONG_VERSION_NUMBER] wrong version number (_ssl.c:1056)'))) - skipping
  Could not find a version that satisfies the requirement django (from versions: )
No matching distribution found for django
Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/pip/ (Caused by SSLError(SSLError(1, '[SSL: WRONG_VERSION_NUMBER] wrong version number (_ssl.c:1056)'))) - skipping

我已经从其他问题中尝试了很多东西，但都没有奏效。

pip install --upgrade pip --trusted-host pypi.org --trusted-host files.pythonhosted.org

pip install --trusted-host pypi.python.org --trusted-host files.pythonhosted.org --trusted-host pypi.org django

Answer 1

正确设置我的代理也为我解决了这个问题。问题是我对 HTTPS_PROXY 和 https_proxy 环境变量使用了 http s协议。

用：

HTTPS_PROXY="http://username:password@proxy.example.com:8080"
https_proxy="http://username:password@proxy.example.com:8080"

不使用：

HTTPS_PROXY="https://username:password@proxy.example.com:8080"
https_proxy="https://username:password@proxy.example.com:8080"

Answer 2

我的 pip 工作正常（Win7，python 3.8.6），直到我将 pip 从版本 20.2.1 升级到 20.3.1，之后我也收到了 SSL: WRONG_VERSION_NUMBER 错误。这是可重现的，我卸载并重新安装了几次以确认。

解决方案（好吧，变通方法）：不要将 pip 升级到 20.3.1。

注意：pip 20.3.1 在我的 Win10/python 3.9.1 环境中工作正常。

Answer 3

我问了一位同事，他自动知道该做什么。我只需要设置代理变量：“set https_proxy= http://username:password@proxy.example.com:8080 ”“set http_proxy= http://username:password@proxy.example.com:8080 ”和有用