Rouigram is a simple and use-full platform for Instagram user id without any registration. instagram user_id is the important factor to use other API of Instagram for making interconnected application. You can help develop this code in the github.
type in your terminal
pip install rouigram
import rouigram as instagram
info = instagram.getInformation("mohammadali_mirhamed") #define Username
print(instagram.getInformation.user_id(info)) # You will get user id
print(instagram.getInformation.username(info)) # You will get username
print(instagram.getInformation.fullname(info)) # You will get fullname
print(instagram.getInformation.follower_count(info)) # You will get follower count
print(instagram.getInformation.following_count(info)) # You will get following count
print(instagram.getInformation.media_count(info)) # You will get media_count
print(instagram.getInformation.external_url(info)) # You will get Website link
print(instagram.getInformation.is_private(info)) # You will get is_private
print(instagram.getInformation.profile_hd_photo(info)) # You will get FullHd profile Image
print(instagram.getInformation.biography(info)) # You will get biography