[BUG] - Info messages appearing as warnings in Jupyter notebooks

[JHancox]

Describe the bug When running cucim - accelerated dataloading in Jupyter, a lot of pink warning style output can be generated that looks like an error.

Steps/Code to reproduce bug Run the following code in a notebook with a suitably large image:

from cucim import CuImage
from dask.distributed import as_completed
from dask.distributed import Client, LocalCluster
import os
import numpy as np

cluster = LocalCluster(dashboard_address= 8789, processes=True)
client = Client(cluster)

# iterate over a set of regions from which to threshold
def process_chunk(params):
    start_loc_list = params[0]
    inp_file = params[1]
    patch_size = params[2]
    slide = CuImage(inp_file)
    res = []
    for start_loc in start_loc_list:
        region = np.array(slide.read_region(start_loc, [patch_size, patch_size], 0))
        if region.flatten().var() > 100:
            res.append(start_loc)
        
    return res

# As the results are processed, put them into a list
def compile_results(futures):
    patches = []

    for future in as_completed(futures):
        res1 = future.result()
        if res1:
            for patch in res1:
                patches.append(patch)
                
    return patches

input_file = "patient_100_node_0.tif"
wsi = CuImage(input_file)
sizes=wsi.metadata["cucim"]["resolutions"]
w = sizes["level_dimensions"][0][0]
h = sizes["level_dimensions"][0][1]
patch_size = 256
num_processes = os.cpu_count()

# compute the coordinates of the image patches
start_loc_data = [(sx, sy)
    for sy in range(0, h, patch_size)
        for sx in range(0, w, patch_size)]

# calculate the number of patches per process/thread
chunk_size = len(start_loc_data) // num_processes

# create list of patches to process
start_loc_list_iter = [(start_loc_data[i:i+chunk_size],input_file,patch_size)  for i in range(0, len(start_loc_data), chunk_size)]

# Threshold each patch asynchronously and return a future
future_result1 = list(client.map(process_chunk, start_loc_list_iter))
patches = compile_results(future_result1)`

Expected behavior Ideally no such output should be produced unless the user specifies that they want info/warning output to be shown.

Environment details (please complete the following information): Jupyter notebook running NGC PyTorch container 21.07 cucim v21.8.2

Additional context Here is some example output when loading an image with 10 processes:

[Plugin: cucim.kit.cuslide] Loading...
[Plugin: cucim.kit.cuslide] Loading the dynamic library from: /opt/conda/lib/python3.8/site-packages/cucim/clara/[email protected]
[Plugin: cucim.kit.cuslide] loaded successfully. Version: 0
Initializing plugin: cucim.kit.cuslide (interfaces: [cucim::io::IImageFormat v0.1]) (impl: cucim.kit.cuslide)
[Plugin: cucim.kit.cuslide] Loading...
[Plugin: cucim.kit.cuslide] Loading the dynamic library from: /opt/conda/lib/python3.8/site-packages/cucim/clara/[email protected]
[Plugin: cucim.kit.cuslide] loaded successfully. Version: 0
Initializing plugin: cucim.kit.cuslide (interfaces: [cucim::io::IImageFormat v0.1]) (impl: cucim.kit.cuslide)
[Plugin: cucim.kit.cuslide] Loading...
[Plugin: cucim.kit.cuslide] Loading the dynamic library from: /opt/conda/lib/python3.8/site-packages/cucim/clara/[email protected]
[Plugin: cucim.kit.cuslide] Loading...
[Plugin: cucim.kit.cuslide] Loading the dynamic library from: /opt/conda/lib/python3.8/site-packages/cucim/clara/[email protected]
[Plugin: cucim.kit.cuslide] loaded successfully. Version: 0
Initializing plugin: cucim.kit.cuslide (interfaces: [cucim::io::IImageFormat v0.1]) (impl: cucim.kit.cuslide)
[Plugin: cucim.kit.cuslide] loaded successfully. Version: 0
Initializing plugin: cucim.kit.cuslide (interfaces: [cucim::io::IImageFormat v0.1]) (impl: cucim.kit.cuslide)
[Plugin: cucim.kit.cuslide] Loading...
[Plugin: cucim.kit.cuslide] Loading the dynamic library from: /opt/conda/lib/python3.8/site-packages/cucim/clara/[email protected]
[Plugin: cucim.kit.cuslide] Loading...
[Plugin: cucim.kit.cuslide] Loading the dynamic library from: /opt/conda/lib/python3.8/site-packages/cucim/clara/[email protected]
[Plugin: cucim.kit.cuslide] Loading...
[Plugin: cucim.kit.cuslide] Loading the dynamic library from: /opt/conda/lib/python3.8/site-packages/cucim/clara/[email protected]
[Plugin: cucim.kit.cuslide] loaded successfully. Version: 0
Initializing plugin: cucim.kit.cuslide (interfaces: [cucim::io::IImageFormat v0.1]) (impl: cucim.kit.cuslide)
[Plugin: cucim.kit.cuslide] loaded successfully. Version: 0
Initializing plugin: cucim.kit.cuslide (interfaces: [cucim::io::IImageFormat v0.1]) (impl: cucim.kit.cuslide)
[Plugin: cucim.kit.cuslide] loaded successfully. Version: 0
Initializing plugin: cucim.kit.cuslide (interfaces: [cucim::io::IImageFormat v0.1]) (impl: cucim.kit.cuslide)
[Plugin: cucim.kit.cuslide] Loading...
[Plugin: cucim.kit.cuslide] Loading the dynamic library from: /opt/conda/lib/python3.8/site-packages/cucim/clara/[email protected]
[Plugin: cucim.kit.cuslide] loaded successfully. Version: 0
Initializing plugin: cucim.kit.cuslide (interfaces: [cucim::io::IImageFormat v0.1]) (impl: cucim.kit.cuslide)
[Plugin: cucim.kit.cuslide] Loading...
[Plugin: cucim.kit.cuslide] Loading the dynamic library from: /opt/conda/lib/python3.8/site-packages/cucim/clara/[email protected]
[Plugin: cucim.kit.cuslide] loaded successfully. Version: 0
Initializing plugin: cucim.kit.cuslide (interfaces: [cucim::io::IImageFormat v0.1]) (impl: cucim.kit.cuslide)