i get fatal error with pip and python

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i get fatal error with pip and python

had@had-HP-Pavilion-Laptop-15-cs0xxx:~$ python3.5 -m pip install catkin_pkg
Traceback (most recent call last):
  File "/usr/lib/python3.5/runpy.py", line 184, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.5/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/usr/local/lib/python3.5/dist-packages/pip/__main__.py", line 29, in <module>
    from pip._internal.cli.main import main as _main
  File "/usr/local/lib/python3.5/dist-packages/pip/_internal/cli/main.py", line 58
    sys.stderr.write(f"ERROR: {exc}")
                                   ^
SyntaxError: invalid syntax

had@had-HP-Pavilion-Laptop-15-cs0xxx:~$ pip3 install --upgrade pip
Traceback (most recent call last):
  File "/usr/local/bin/pip3", line 7, in <module>
    from pip._internal.cli.main import main
  File "/usr/local/lib/python3.5/dist-packages/pip/_internal/cli/main.py", line 58
    sys.stderr.write(f"ERROR: {exc}")
                                   ^
SyntaxError: invalid syntax

had@had-HP-Pavilion-Laptop-15-cs0xxx:~$ python3 -m pip install --upgrade pip
Traceback (most recent call last):
  File "/usr/lib/python3.5/runpy.py", line 184, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.5/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/usr/local/lib/python3.5/dist-packages/pip/__main__.py", line 29, in <module>
    from pip._internal.cli.main import main as _main
  File "/usr/local/lib/python3.5/dist-packages/pip/_internal/cli/main.py", line 58
    sys.stderr.write(f"ERROR: {exc}")
                                   ^
SyntaxError: invalid syntax