After installing a new virtualenv with python 3.5, pip3.5 generates a syntax error.
Traceback (most recent call last):
File "/home/eltgi/.virtualenvs/apartment_venv/bin/pip3.5", line 7, in <module>
from pip._internal.cli.main import main
File "/home/eltgi/.virtualenvs/apartment_venv/lib/python3.5/site-packages/pip/_internal/cli/main.py", line 57
sys.stderr.write(f"ERROR: {exc}")