Update cartridge

# get time
def getTime():
	from datetime import datetime
	now = datetime.now()
	return now.strftime("%d/%m/%Y %H:%M:%S")
# get author
def getAuthor():
	doc = App.ActiveDocument
	return doc.CreatedBy.title()

#convert scale
def convertScale(scale):
	left = 1
	right = 1
	if scale > 1:
		left = scale
		right = 1
	elif scale < 1:
		left = 1
		right = 1 / scale
	return str(left)+":"+str(right)

# update values
def updateValues(author, time):
	s = FreeCADGui.Selection.getSelection()

	if len(s) < 1:
		print ("Please select 1 TechDraw Page")
		return

	for item in s:
		#print ("Object in selection is a: ", item.TypeId)
		if item.isDerivedFrom("TechDraw::DrawPage"):
			for o in item.OutList:
				if o.TypeId == "TechDraw::DrawSVGTemplate":
					texts = o.EditableTexts.copy()
					texts["DRAWING_TITLE"] = item.Label
					texts["FC-SC"] = convertScale(item.Scale)
					texts["AUTHOR_NAME"] = author
					texts["FC-DATE"] = time
					o.EditableTexts = texts
	return

updateValues(getAuthor(), getTime())