move constants to class

polish docstrings

README.rst

@@ -60,7 +60,7 @@ The main dependencies are:
 
 * PyTables >= 3.8
 * NumPy >= 1.20.0
-* ctapipe == 0.22.0
+* ctapipe >= 0.23
 
 Also see setup.py.
 

dl1_data_handler/image_mapper.py

@@ -1,5 +1,5 @@
 """
-This module defines the ``ImageMapper`` classes, which holds the basic functionality for mapping raw 1D vectors into 2D mapped images.
+This module defines the ``ImageMapper`` classes that hold the basic functionality for mapping raw 1D vectors into 2D mapped images.
 """
 
 import numpy as np
@@ -23,10 +23,6 @@
     "SquareMapper",
 ]
 
-# Constants for the ImageMapper classes
-Constants = namedtuple("Constants", ["decimal_precision", "tick_interval_limit"])
-constants = Constants(3, 0.002)
-
 class ImageMapper(TelescopeComponent):
     """
     Base component for mapping raw 1D vectors into 2D mapped images.
@@ -67,6 +63,10 @@ class ImageMapper(TelescopeComponent):
         Transform the raw 1D vector data into the 2D mapped image.
     """
 
+    # Constants for the ImageMapper classes
+    Constants = namedtuple("Constants", ["decimal_precision", "tick_interval_limit"])
+    constants = Constants(3, 0.002) 
+
     def __init__(
         self,
         geometry,

dl1_data_handler/reader.py

@@ -1,5 +1,5 @@
 """
-This module defines the ``DLDataReader`` and ``TableQualityQuery`` classes, which holds the basic reading and processing functionality for Deep Learning (DL) analyses.
+This module defines the ``DLDataReader`` and ``TableQualityQuery`` classes that hold the basic reading and processing functionality for Deep Learning (DL) analyses.
 """
 
 __all__ = [