Python Script to Update Local Copies of M4 Data

Hi everyone,

If anyone is interested, I have written and published a Python script that will update local copies of the M4 20 Hz/10 min data based on a) whether the local version exists and b) whether the online version has a newer modification date. The script works on Windows and should work on Linux with a few file-path modifications.

You can find the script (“”) and a module with helper functions at

This is an extended version of the code from the old forum post (, in addition to being newly implemented in Python.

Please let me know if you have any questions or see any errors.