Python pip install Not finding requierements versions

问题

I am using Python 3.7, pip version: 10.0.1, OS: Windows 10

In CMD i am installing dependencies with the command:

Python -m pip install requirements.txt

But it show this message:

Could not find a version that satisfies the requirement requirements.txt (from versions: ) No matching distribution found for requirements.txt

requirements.txt contains:

#Flask framework 

Flask

#Flask packages 
Flask-RESTful 
Flask-JWT 
Flask-SQLAlchemy 
Flask-Mail

回答1:

You're missing -r flag in your pip install command

Python -m pip install -r requirements.txt

来源：https://stackoverflow.com/questions/51275819/python-pip-install-not-finding-requierements-versions