'intalling pyscopg2 and error no distribution for this version

why do i get the error:- **Error:No distribution found for this version**and also the same error comes for other versions too,i am on windows i tried to install it like pip install pyscopg2=2.7.* and also pip install pyscopg2.



Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source