RTSTRUCT save as

[awtkns]

Two small things here:

• We are opening but never closing the file.
• Why are we using open? Why not Path.exsists() && Path.is_file()

rt-utils/rt_utils/rtstruct.py

Lines 54 to 61 in 26447ff

	def save(self, file_path):
	try:
	open(file_path, 'w')
	# Opening worked, we should have a valid file_path
	print("Writing file to", file_path)
	self.ds.save_as(file_path)
	except OSError:
	raise Exception(f"Cannot write to file path '{file_path}'")

[asim-shrestha]

motivation behind it is to ensure we have a valid file name / file is writable / can overwrite existing files. I'm not sure if we can do this with those methods (initially the path will probably be empty so .exists() would be false. Issue arises since .exists() also just returns false with invalid file names)

As for closing, python should handle closing it eventually but I added a close to be sure