Python

Python is a functional programming language. It was developed by Guido van Rossum and was first released in 1991. For some time, Python was not popular among developers, but later, around 2006-07, it introduced some libraries such as Numerical Python (NumPy) and Pandas, which became cornerstones and made Python popular among all types of programmers. In Spark, when the driver launches executors on worker nodes, it also starts a Python interpreter for each executor. In the case of RDD, the data is first shipped into the JVMs, and is then transferred to Python, which makes the job slow when working with RDDs.