When I try pip install statsmodels.api command, I had these errors
ERROR: Could not find a version that satisfies the requirement statsmodels.api (from versions: none) ERROR: No matching distribution found for statsmodels.api
Python version is Python 3.8.5
C:\Windows\system32>pip install statsmodels
Requirement already satisfied: statsmodels in c:\python38\lib\site-packages (0.12.0) Requirement already satisfied: numpy>=1.15 in c:\python38\lib\site-packages (from statsmodels) (1.19.1) Requirement already satisfied: patsy>=0.5 in c:\python38\lib\site-packages (from statsmodels) (0.5.1) Requirement already satisfied: pandas>=0.21 in c:\python38\lib\site-packages (from statsmodels) (1.1.2) Requirement already satisfied: scipy>=1.1 in c:\python38\lib\site-packages (from statsmodels) (1.5.2) Requirement already satisfied: six in c:\python38\lib\site-packages (from patsy>=0.5->statsmodels) (1.15.0) Requirement already satisfied: python-dateutil>=2.7.3 in c:\python38\lib\site-packages (from pandas>=0.21->statsmodels) (2.8.1) Requirement already satisfied: pytz>=2017.2 in c:\python38\lib\site-packages (from pandas>=0.21->statsmodels) (2020.1)