Installing Numpy on Raspberry Pi

[snippsat]

Try this then try to install again.

python3 -m pip install --trusted-host pypi.python.org --trusted-host files.pythonhosted.org --trusted-host pypi.org --upgrade pip

pip3 can also work alone,may need to install it.

# Install
sudo apt-get update
sudo apt install python3-pip

# Test with:
pip3 -V 

# Not using sudo
pip3 install --user numpy