使用python安装crypto问题

我有一些使用加密的python代码

from Crypto.Random.random import getrandbits
from Crypto import Random
from Crypto.Random import random
from Crypto.PublicKey import ElGamal
import socket
import time

当我运行该文件时，我得到了错误

回溯（最近一次调用）：文件“/alice_solution.py”，第6行，from Crypto.Random.Random import getrandbits modulenofounderror:没有名为“Crypto”的模块

当我尝试安装模块pip install Crypto时，出现以下错误：

pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Collecting Crypto
  Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/crypto/
  Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/crypto/
  Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/crypto/
  Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/crypto/
  Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/crypto/
  Could not fetch URL https://pypi.org/simple/crypto/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/crypto/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is notavailable.")) - skipping
  Could not find a version that satisfies the requirement Crypto (from versions: )
No matching distribution found for Crypto
You are using pip version 18.0, however version 20.3b1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

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请帮忙。。。我试图研究这个问题，但没有发现任何有效的方法。ssl模块是Python本身的标准库模块

pip

要求它能够通过TLS获取资源。如果您自己编译此Python，则需要确保具有正确的依赖项（例如openssl开发头等）。如果没有，请与平台的软件包管理器联系，查看是否有其他提供此功能的软件包需要安装。

您是否尝试过错误消息最后一行的建议？另外，您正在运行哪个版本的python？@PresidentJamesK.Polk它会给我相同的错误：

无法获取URLhttps://pypi.org/simple/pip/: 确认ssl证书时出现问题：HTTPSConnectionPool（host='pypi.org'，port=443）：url:/simple/pip/（由SSLError引起）超过了最大重试次数(“无法连接到HTTPS URL，因为SSL模块不可用。”）-跳过

@PresidentJamesK.Polk python3是3.7.0，python是2.7.0