libtuning: Migrate prints to python logging framework

In ctt_ccm.py the logging functionality of the Cam object was used. As
we don't want to port over that class, it needs to be replaced anyways.
While at it, also replace the eprint function as it doesn't add any
value over the logging framework and misses the ability for easy log
formatting.

For nice output formatting add the coloredlogs library.

Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>

1 files changed, 7 insertions, 5 deletions

diff --git a/utils/tuning/libtuning/modules/lsc/raspberrypi.py b/utils/tuning/libtuning/modules/lsc/raspberrypi.py
index f19c7163..99bc4fe6 100644
--- a/utils/tuning/libtuning/modules/lsc/raspberrypi.py
+++ b/utils/tuning/libtuning/modules/lsc/raspberrypi.py
@@ -12,7 +12,9 @@ import libtuning.utils as utils
 
 from numbers import Number
 import numpy as np
+import logging
 
+logger = logging.getLogger(__name__)
 
 class ALSCRaspberryPi(LSC):
     # Override the type name so that the parser can match the entry in the
@@ -35,7 +37,7 @@ class ALSCRaspberryPi(LSC):
 
     def validate_config(self, config: dict) -> bool:
         if self not in config:
-            utils.eprint(f'{self.type} not in config')
+            logger.error(f'{self.type} not in config')
             return False
 
         valid = True
@@ -46,14 +48,14 @@ class ALSCRaspberryPi(LSC):
         color_key = self.do_color.name
 
         if lum_key not in conf and self.luminance_strength.required:
-            utils.eprint(f'{lum_key} is not in config')
+            logger.error(f'{lum_key} is not in config')
             valid = False
 
         if lum_key in conf and (conf[lum_key] < 0 or conf[lum_key] > 1):
-            utils.eprint(f'Warning: {lum_key} is not in range [0, 1]; defaulting to 0.5')
+            logger.warning(f'{lum_key} is not in range [0, 1]; defaulting to 0.5')
 
         if color_key not in conf and self.do_color.required:
-            utils.eprint(f'{color_key} is not in config')
+            logger.error(f'{color_key} is not in config')
             valid = False
 
         return valid
@@ -235,7 +237,7 @@ class ALSCRaspberryPi(LSC):
         if count == 1:
             output['sigma'] = 0.005
             output['sigma_Cb'] = 0.005
-            utils.eprint('Warning: Only one alsc calibration found; standard sigmas used for adaptive algorithm.')
+            logger.warning('Only one alsc calibration found; standard sigmas used for adaptive algorithm.')
             return output
 
         # Obtain worst-case scenario residual sigmas