Instagram has an API that you can use that might suite your needs. It should work in whatever language you want to use as long as it has the ability to consume an API.
Any questions about how to use a language to query the API would need to be posted on StackOverflow and not here.
The new Twitter design doesn't have notifications option dedicated just for new likes. The closest you can do is deactivate the Updates about the performance of your Tweets option. Here is how to do it:
Click the More button at the bottom of the main menu on the left, then click the Email notifications option (bottom-right)
Un-check the Updates about the ...