Error Installing Instapy on MacOS

(Brand new to coding so this is like a foreign language to me so excuse me if this is a simple fix)
Im watching the video tutorials and I am having trouble installing.
I am:
-Using MacOS Mojave 10.141.
-Downloaded Python 3.9.1

When i run the MacOS Install.command it shows me the messages below. Please let me know if there is something I've missed or doing wrong.
Thank you!!!

Python is installed
====================
Pip is installed
====================
Chrome is installed
====================
Installing InstaPy...
Traceback (most recent call last):
File "/usr/local/bin/pip", line 9, in
load_entry_point('pip==21.0', 'console_scripts', 'pip')()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 565, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 2697, in load_entry_point
return ep.load()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 2370, in load
return self.resolve()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 2376, in resolve
module = __import__(self.module_name, fromlist=['__name__'], level=0)
File "/Library/Python/2.7/site-packages/pip-21.0-py2.7.egg/pip/_internal/cli/main.py", line 60
sys.stderr.write(f"ERROR: {exc}")
^
SyntaxError: invalid syntax
====================
Traceback (most recent call last):
File "/usr/local/bin/pip", line 9, in
load_entry_point('pip==21.0', 'console_scripts', 'pip')()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 565, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 2697, in load_entry_point
return ep.load()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 2370, in load
return self.resolve()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 2376, in resolve
module = __import__(self.module_name, fromlist=['__name__'], level=0)
File "/Library/Python/2.7/site-packages/pip-21.0-py2.7.egg/pip/_internal/cli/main.py", line 60
sys.stderr.write(f"ERROR: {exc}")
^
SyntaxError: invalid syntax
There was a problem installing InstaPy, please copy the error message and create an issue here: https://github.com/InstaPy/instapy-quickstart/issues

You can also manually install InstaPy with this guide: https://github.com/timgrossmann/InstaPy

Sorry for the inconveniences
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[Process completed]

Start by reading MacOS Install.command and tracing its pip invocation, especially the /usr/local/bin/pip entry point shown in the traceback. Reproduce the installation on macOS Mojave with Python 3.9.1; the work is done when the script installs InstaPy without the reported syntax error.

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