This post explains how to write to a file in Python. You'll discover how to create word files (.docx), spreadsheets (.csv), text files, and more!

Being a famous and handy programming language, python allows you to do lots of different tasks, including reading and writing CSV files. Import the CSV module. Open the file and create a CSV writer ...

A CSV file is a “comma-separated values” file. In plain English, this is a text file that contains an unusually large amount of data. More often than not, this is used in order to create ...

When run it produces: $ python csv1.py A : 1 B : 2 C D : 3 4 A : 5 B : 6 C D : 7 In addition, the csv module provides writer objects for writing CSV files. The following Python program converts our ...

The problem I've noticed is that if I append the file with each of the 100k runs (one at a time), it can happen that two threads try to save to the file at the same time and some row(s) end up empty.

In addition, you can convert all the sheets in one pass by specifing a %d or a %s format specifier in the output file name: $ python ssconverter.py file1.xls file1-%d.csv $ python ssconverter.py file1 ...