yep. Same error even when using sudo.
$ sudo pip3 install urllib3 --upgrade
Downloading/unpacking urllib3 from https://pypi.python.org/packages/63/cb/6965947c13a94236f6d4b8223e21beb4d576dc72e8130bd7880f600839b8/urllib3-1.22-py2.py3-none-any.whl#md5=1c11e1c80371cc4e89911071010a98d1
Downloading urllib3-1.22-py2.py3-none-any.whl (132kB): 132kB downloaded
Installing collected packages: urllib3
Found existing installation: urllib3 1.7.1
Not uninstalling urllib3 at /usr/lib/python3/dist-packages, owned by OS
Successfully installed urllib3
Cleaning up...
Could it have something to do with the dependencies I installed?
"Install dependencies:
sudo apt-get install python3-setuptools python3-pyqt5 python3-pip"
I had electrum-ltc installed and working fine. Then I installed the dependencies above and electrum (btc), that's when electrum-ltc stopped working.