What is the purpose of df.to_csv in Python?
df.to_csv() is a method of the DataFrame object that is used to save the DataFrame object as a CSV file. This method writes the data from the DataFrame object into a CSV file so that it can be easily read and processed again when needed. CSV files are a common data storage format that can be easily read and processed by other programs. By using the df.to_csv() method, the data in the DataFrame object can be saved as a CSV file for further data analysis and processing.