Data science professionals & aspirants being majorly from statistics backgrounds tend to face certain issues and problems using Python as it is a programming language based on the OOPS concept. They are most comfortable using R as it majorly caters to statistical projects. However, for projects related to machine learning, knowledge of Python is required. Also, Python has a lot of inbuilt functions and commands which are important for Data Science projects. Hence, becoming a Data Scientist without learning Python is not impossible but definitely not advisable.