# create a grayscale pgm image file

width = 200
height = 150
maxIntensity = width + height 		# pixels are scaled 0 to maxIntensity

f = open("myfile.pgm", "w")		# built-in function to open a text file

f.write("P2\n")				# write the pgm file magic number
f.write(str(width) + " " + str(height) + "\n")		# write width and height
f.write(str(maxIntensity) + "\n")			# write value of brightest pixel

for row in range(height):			# row 0 will be displayed at the top
	for col in range(width):

                    # replace next line with your own code to make an image
		f.write(str(row + col) + " ")	# lower right will be brightest


	f.write("\n")

f.close()


# to display your image:
#
#	python pgm.py
#		File --> Open
#
#           or
#
# 	python pgmdisplay.py myfile.pgm