Generate a text file with oldname=newname for Glyphs.app

glyphsapp-nicenames.py

# Generate a file with "oldname=newname" per glyph to rename with nice names.
# To use with https://github.com/mekkablue/Glyphs-Scripts to rename glyphs
for font in Glyphs.fonts:
	renames = dict()
	for glyph in font.glyphs:
		new = Glyphs.niceGlyphName(glyph.name)
		if new != glyph.name and new not in font.glyphs:
				renames[glyph.name] = new
	print(len(renames))
	dirname = "/".join(font.filepath.split("/")[:-1])
	filename = font.filepath.split("/")[-1]
	with open(dirname + "/" + filename + ".txt", "w") as fp:
		fp.write("\n".join(f"{k}={v}" for k, v in renames.items()))