如何在覆盖模式下将 pandas dataframe 保存到 csv？

Question

I want to save pandas dataframe to csv in overwrite mode. I want that whenever the program will run again with any changes then it should save the dataframe to csv and overwrite the already saved csv file at the location.

Answer 1

I think you can do:

df.to_csv('file_name.csv',mode='w+' )

Form more info goto documentation

Answer 2

This should overwrite the file by default:

df.to_csv("filename")

Answer 3

There are many ways you can do that.

1. This replaces file everytime you run the script.

    dataframe.to_csv(r"C:\....\notebooks\file.csv")

2. This method first opens the files,gives you options of reading(r), appending(ab) or writing.

import csv

with open ('file.csv','w') as f:
    wtr = csv.writer(f)