Rename Roam daily notes to Obsidian format.

roam_to_obsidian.py

import os
import dateutil
import glob

# Assumes you're working in a directory with only the Daily Notes
# Files that aren't parseable dates will fail
files = map(lambda n: n[2:-2], glob.glob("./*.md"))

for f in files:
  d = dateutil.parser.parse(f)
  new_name = d.strftime("%Y-%m-%d") + ".md"
  os.rename(f + ".md", new_name)