Python環境(基於Pycharm和官方python包)搭建順序

1.下載安裝包
python官網下載3.7.2
Pycharm 社區版下載安裝

2.直接使用Pycharm自帶virtualEnv
File - Settings - Project - Project Interpreter - (右側的齒輪)Add - Virtualenv enviroment - New Virtualenv

說說不用Anoconda緣由。
主要是Anoconda到python環境導入到Pycharm時再新增包時，提示SSL鏈接沒法創建。
(
Collecting opencv-python==3.4.2.17
Could not fetch URL https://pypi.org/simple/opencv-python/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/opencv-python/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.")) - skipping
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
pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
）
（緣由沒有SSL模塊支持，Ubuntu下apt-get install openssl解決，但python官網的安裝包默認就有ssl）
因此，Pycharm導入python官網環境後，再新增包時，輕鬆pip install了。
因此若是在Pycharm下管理python環境，就能夠用上述的第2點方法