Access detection measurements from a QuPath project in python

"""
example showing how to get detections for each annotation of an image within a project

Created on Tue Apr  9 13:53:22 2024

@author: zalavadia.ajay@gmail.com
"""
from paquo.projects import QuPathProject
import pandas as pd

EXAMPLE_PROJECT = "D:\\_TestFiles\\test-project\\project.qpproj"

with QuPathProject(EXAMPLE_PROJECT, mode='r') as qp:
    print("Project Name: ", qp.name)
    # iterate over the images
    for image in qp.images:
        # annotations and detections are accessible via the hierarchy
        annotations = image.hierarchy.annotations
        detections = image.hierarchy.detections

        if(len(detections)>0):
            for annotation in annotations: 
                # list Comprehension
                childrens = [detection for detection in detections if detection.parent.name == annotation.name]
                # measurements dictionary for each detection
                df = pd.DataFrame(detection.measurements for detection in childrens)
                # print the total number of detections and the total number of measurements
                print(annotation.name ,"--> Number of detections: ", df.shape[0], " Number of measurements: ", df.shape[1])