我昨天安装了Anaconda3(2019(，Python 3.7，Windows 10，现在我无法运行pip install <package>。
当我运行pip安装时，我收到以下消息：pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
当我尝试安装 ssl 模块时，我收到相同的错误消息：
D:>pip install D:ssl-1.16.tar.gz
WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Processing d:ssl-1.16.tar.gz
ERROR: Command errored out with exit status 1:
command: 'C:UsersAlienwareAnaconda3python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\Users\Alienware\AppData\Local\Temp\pip-req-build-fdke_oc7\setup.py'"'"'; __file__='"'"'C:\Users\Alienware\AppData\Local\Temp\pip-req-build-fdke_oc7\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'rn'"'"', '"'"'n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base pip-egg-info
cwd: C:UsersAlienwareAppDataLocalTemppip-req-build-fdke_oc7
Complete output (6 lines):
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "C:UsersAlienwareAppDataLocalTemppip-req-build-fdke_oc7setup.py", line 33
print 'looking for', f
^
SyntaxError: Missing parentheses in call to 'print'. Did you mean print('looking for', f)?
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
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("Can't connect to HTTPS URL because the SSL module is not available.")) - skipping
似乎pip不起作用，因为模块ssl未安装，但是当pip不起作用时如何安装模块ssl？
运行后解决：
conda activate base
看来你的包不适合 python3，它写的语法就是 python2 的语法。您需要一个适用于 python3 的 ssl 安装包