Can't locate plots package

[BobLoblaw]

I am trying to run some legacy code that was created last year by a teammate, and that includes the following initial line:

from plots import COLORS10, enlarge_tick_fontsize

However, when I run this line from my Spyder3 editor, the following error message results:

Error:
from plots import COLORS10, enlarge_tick_fontsize
Traceback (most recent call last):

  File "<ipython-input-30-44011da13a42>", line 1, in <module>
    from plots import COLORS10, enlarge_tick_fontsize

ModuleNotFoundError: No module named 'plots'

If I try to do

pip install plots

in the Anaconda console, the following error message results:

Error:
Could not find a version that satisfies the requirement plots (from versions: )
No matching distribution found for plots

Similarly, trying

conda install plots

Yields this error message:

Error:
Fetching package metadata ......
PackageNotFoundError: Packages missing in current channels:
  - plots

Googling "Python plots package", I am not seeing any likely candidates for packages available to install. I will appreciate any suggestions about whether there is still a "plots" package that exists, and how to access it. Thank you!!