Devsinc Senior Software Engineer, Python interview questions

The process took 3 weeks. Worst experience in my career so far. First interview was online which went good and was properly taken by a senior person. High level questions and asked me to solve a problem. Second interview was on-site, and they put 2 less experienced developers and they started asking questions like a fresh graduate is sitting next to them. They were being very unprofessional. Questions were dumb e-g, How many datatypes are there in Python, Difference between List & Tuple, etc. They then started to ask advanced level React JS questions (I was giving interview of Python Dev Interview). Their body language and communication was not even 1% professional. One of the interviewers literally asked, "What the HELL is container"? . Yes, using the word "HELL" in questions. Then they asked me to write code and solve code on paper, which is very useless for Senior Developer position.