The book “Data science with Machine learning- Python interview questions” is a true companion of people aspiring for data science and machine learning and provides answers to most asked questions in an easy to remember and presentable form. \nData science is one of the hottest topics mainly because of the application areas it is involved and things which were once upon of time, impossible with earlier software has been made easy. This book is mainly intended to be used as last-minute revision, before the interview, as all the important concepts have been given in simple and understandable format. Many examples have been provided so that the same can be used while giving answers in an interview. \nThis book tries to include various terminologies and logic used both as a part of Data Science and Machine learning for last-minute revision. As such you can say that this book acts as a companion whenever you want to go for an interview. \nSimple to use words have been used in the answers for the questions to help ease of remembering and representation of same. Examples where ever deemed necessary have been provided so that the same can be used while giving answers in an interview. The author tried to consolidate whatever he came across, on multiple interviews that he attended and put the same in words so that it becomes easy for the reader of the book to give direction on how the interview would be. \nWith the number of data science jobs increasing, Author is sure that everyone who wants to pursue this field would like to keep this book as a constant companion.