fix failing test

logger = logging.getLogger(__name__)

def remove_dead_examples(dataset):

  """Removes compounds with no weight.

from unittest import TestCase

from io import StringIO

import tempfile

import logging

import shutil

import deepchem as dc

    fin = tempfile.NamedTemporaryFile(mode='w', delete=False)

    fin.write("smiles,endpoint\nc1ccccc1,1")

    fin.close()

    logger.info(fin.name)

    print(fin.name)

    featurizer = dc.feat.CircularFingerprint(size=1024)

    tasks = ["endpoint"]

    loader = dc.data.CSVLoader(

import shutil

import deepchem as dc

class TestDataLoader(unittest.TestCase):

  """

  Test DataLoader

logger = logging.getLogger(__name__)

class TestDrop(unittest.TestCase):

  """

  Test how loading of malformed compounds is handled.

logger = logging.getLogger(__name__)

class TestLoad(unittest.TestCase):

  """

  Test singletask/multitask data loading.