Error in commands involving pip in Ubuntu 16.04

Question

Using the command pip --version gives the following error

Traceback (most recent call last):
  File "/home/johns/.local/bin/pip", line 7, in <module>
    from pip._internal.cli.main import main
  File "/home/johns/.local/lib/python3.5/site-packages/pip/_internal/cli/main.py", line 60
    sys.stderr.write(f"ERROR: {exc}")
                                   ^

I'm new to Ubuntu & I also tried the following commands which also gives me the same error

pip3 install --upgrade pip

python3 -m pip --version