Update IR_image_tools.py in case bad pixels cannot be loaded

IR_image_tools.py

@@ -168,8 +168,8 @@ def read_bad_pixels_from_file(port, shot_no=None, program=None):
         
     port_name = 'AEF{0}'.format(port)
     bad_pixel_file = 'badpixel_{0}.bpx'.format(portcamdict[OP][port_name][6:])
-    data = np.genfromtxt(IRCAMBadPixels_path+bad_pixel_file, dtype=int)
     try:
+        data = np.genfromtxt(IRCAMBadPixels_path+bad_pixel_file, dtype=int)
         bad_pixle_list = list(zip(data[:,1], data[:,0]))
     except:
         bad_pixle_list=[]