Data science professionals & aspirants being majorly from statistics background tend to face certain issues and problems using Python as it is a programming language based on OOPS concept. They are mostly 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.