How can I connect myself as an other user?
Depending on how the passwords are hashed while new users are created, you could just replace the user's hash with another one : 

Go in database and copy the passwordHash of the user you would like to log with
Store this hash somewhere (you will need it to revert the change)
Copy the hash of another user (a user for whom you know the password)
Paste the hash of this user in place of the hash of the user you want to log in

If the hashs are generated the same way, you will be able to log with the other user's password.
Then when you are done, revert the changes in database.
Hope it helps.
Hello I am a developper of a django project and I have to check that my dev is okay. 
To do this, I have to connect myself as a user but I have just his email not his password. I found in the table User this the email and the password but the password begins by this : pbkdf2_sha256 ...
So I guess the password is encrypted. Is there a way easier to do this ? 
Thank you for your help !