Importing matplotlib correctly without pandas

I am currently learning about matplotlib use in python, and I have found myself in a situation where I get an error:

Traceback (most recent call last):
  File "C:/Users/user/Desktop/Machine Learning/plt.py", line 1, in <module>
    import matplotlib.pyplot as plt
  File "C:\Python37\lib\site-packages\matplotlib\__init__.py", line 200, in <module>
    _check_versions()
  File "C:\Python37\lib\site-packages\matplotlib\__init__.py", line 194, in _check_versions
    module = importlib.import_module(modname)
  File "C:\Python37\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
ImportError: DLL load failed: The specified module could not be found.

I have installed my python to 64-bit and I used this website to install matplotlib (I installed matplotlib-3.1.0-cp37-cp37m-win_amd64.whl), also my current python version is 3.7.3, so I did all that and I ran my code where I get the error:

import matplotlib.pyplot as plt
plt.plot([1,2,3],[5,7,4])
plt.show()

To correct this I found in forums that for some people importing pandas worked so I tried that

import pandas as pan
import matplotlib.pyplot as plt
plt.plot([1,2,3],[5,7,4])
plt.show()

And it worked! So my question is why is that, how I can I fix it so I do not have to import pandas.