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np.savetxt(f_handle, im, fmt='%10.0f')#, delimiter=' ')

In [1]: a = np.arange(10)
In [2]: print(a[0], '|', *a[1:])
0 | 1 2 3 4 5 6 7 8 9

			#using print and redirecting stdout
			orig_stdout = sys.stdout
			f = file('D:\PROJECTS\orl_faces\my_file.txt', 'a')
			sys.stdout = f
			print(id, ' | ', im)
			sys.stdout = orig_stdout
			f.close()

(0, ' | ', array([[48, 49, 45, ..., 47, 46, 46]], dtype=uint8))

			h_str= '%d | '%(id)
			with open("D:\PROJECTS\orl_faces\my_file.txt", 'a') as h:  
				for row in im:
					h.write(h_str)
					for col in row:
						h.write("\t{0}".format(col)) 
					h.write("\n")