Replaces OhmPi imports with ohmpi imports

dev/test_measure_with_ohmpi_card_3_15.py

@@ -2,7 +2,7 @@ import numpy as np
 import logging
 import matplotlib.pyplot as plt
 from ohmpi.utils import change_config
-change_config('config_mb_2023_mux_2024.py', verbose=False)
+change_config('../configs/config_mb_2023_mux_2024.py', verbose=False)
 from ohmpi.hardware_system import OhmPiHardware
 
 k = OhmPiHardware()
@@ -49,5 +49,5 @@ r = [np.abs((k.pulses[i]['polarity']*k.pulses[i]['vmn']-k.sp)/k.pulses[i]['iab']
 for i in range(len(r)):
     print(f'Mean resistance with sp correction for pulse{i}: {np.mean(r[i]):.3f} Ohms, Dev. {100*np.std(r[i])/np.mean(r[i]):.1f} %')
 
-change_config('config_default.py', verbose=False)
+change_config('../configs/config_default.py', verbose=False)
 

dev/test_mux_2024.py

@@ -45,4 +45,4 @@ if within_ohmpi:
     time.sleep(1.)
     k.reset_mux()
 
-change_config('config_default.py', verbose=False)
\ No newline at end of file
+change_config('../configs/config_default.py', verbose=False)
\ No newline at end of file