utility for fixing attibute format

etc/fixformat.py

+#fix format fro SIP devices
+from tango import *
+gp=Group('vpg')
+
+
+gp.add('sr/vacuum/vg*')
+
+for vgpname in gp.get_device_list():
+    attrname = vgpname+'/Pressure'
+    print(attrname)
+    vgp_pressure  = AttributeProxy(attrname)
+    cfx = vgp_pressure.get_config()
+    cfx.format = '%.2e'
+    cfx.display_unit = 'mbar'
+    vgp_pressure.set_config(cfx)