secop_psi.softcal: default path for calib

Change-Id: I5ad2159587f13e1a0bcb75764397d4c784ed1c87

cfg/sim_uniax.cfg

@@ -40,5 +40,5 @@ value.datatype = {"type":"double", "unit":"Ohm"}
 class=secop_psi.softcal.Sensor
 description=temperature sensor, soft calibration
 rawsensor=res
-calib = /home/l_samenv/frappy/secop_psi/calcurves/X132254.340
+calib = X132254
 value.unit = "K"

cfg/uniax.cfg

@@ -49,5 +49,5 @@ channel = A
 [T]
 class = secop_psi.softcal.Sensor
 rawsensor = res
-calib = /home/l_samenv/frappy/secop_psi/calcurves/X132254.340
+calib = X132254
 value.unit = K

secop_psi/softcal.py

@@ -22,7 +22,7 @@
 
 import math
 import os
-from os.path import basename, exists, join
+from os.path import basename, dirname, exists, join
 
 import numpy as np
 from scipy.interpolate import splev, splrep  # pylint: disable=import-error
@@ -109,7 +109,9 @@ class CalCurve:
         calibname = sensopt.pop(0)
         _, dot, ext = basename(calibname).rpartition('.')
         kind = None
-        for path in os.environ.get('FRAPPY_CALIB_PATH', '').split(','):
+        pathlist = os.environ.get('FRAPPY_CALIB_PATH', '').split(',')
+        pathlist.append(join(dirname(__file__), 'calcurves'))
+        for path in pathlist:
             # first try without adding kind
             filename = join(path.strip(), calibname)
             if exists(filename):