在Python中运行以下代码：

es = Elasticsearch([{'host': 'localhost', 'port': 9200}]).ping()
print (es)

if es:
    r = requests.get('http://localhost:9200')
    es.indices.delete(index='test_twitter', ignore=[400, 404])
    connected = True
    print('Connected to ES..')
else:
    print('Not connected to ES...')

当Elasticsearch运行时，ping没有问题。问题是当ES不运行时，ping（）在打印Traceback错误后返回FALSE，如下所示：

HEAD http://localhost:9200/ [status:N/A request:2.007s]
Traceback (most recent call last):
ConnectionRefusedError: [WinError 10061] No connection could be made because the target machine actively refused it

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPConnection object at 0x000001E2ECBD45F8>: Failed to establish a new connection: [WinError 10061] No connection could be made because the target machine actively refused it
HEAD http://localhost:9200/ [status:N/A request:2.003s]
Traceback (most recent call last):
ConnectionRefusedError: [WinError 10061] No connection could be made because the target machine actively refused it

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPConnection object at 0x000001E2ECBD44E0>: Failed to establish a new connection: [WinError 10061] No connection could be made because the target machine actively refused it
HEAD http://localhost:9200/ [status:N/A request:2.016s]
Traceback (most recent call last):
ConnectionRefusedError: [WinError 10061] No connection could be made because the target machine actively refused it

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPConnection object at 0x000001E2ECBD4668>: Failed to establish a new connection: [WinError 10061] No connection could be made because the target machine actively refused it
False
Not connected to ES...

即使我尝试-除了它像下面，它不工作：

from elasticsearch.exceptions import ConnectionError
try:
    es = Elasticsearch([{'host': 'localhost', 'port': 9200}]).ping()
except ConnectionRefusedError:
    print ('Connection Errrorrr!')

print (es)

我希望ping（）返回false，但不打印错误日志，知道如何做到这一点吗？
完整的代码如下：

from __future__ import unicode_literals

import hug
from hug_middleware_cors import CORSMiddleware
import spacy
from elasticsearch import Elasticsearch
import json
import requests
import sys
sys.tracebacklimit = 0

MODELS = {
    'en_core_web_sm': spacy.load('en_core_web_sm'),
    # 'de_core_news_sm': spacy.load('de_core_news_sm'),
    # 'es_core_news_sm': spacy.load('es_core_news_sm'),
    # 'pt_core_news_sm': spacy.load('pt_core_news_sm'),
    # 'fr_core_news_sm': spacy.load('fr_core_news_sm'),
    # 'it_core_news_sm': spacy.load('it_core_news_sm'),
    # 'nl_core_news_sm': spacy.load('nl_core_news_sm')
}

def get_model_desc(nlp, model_name):
    """Get human-readable model name, language name and version."""
    lang_cls = spacy.util.get_lang_class(nlp.lang)
    lang_name = lang_cls.__name__
    model_version = nlp.meta['version']
    return '{} - {} (v{})'.format(lang_name, model_name, model_version)

@hug.get('/models')
def models():
    return {name: get_model_desc(nlp, name) for name, nlp in MODELS.items()}

@hug.post('/dep')
def dep(text: str, model: str, collapse_punctuation: bool=False,
        collapse_phrases: bool=False):
    """Get dependencies for displaCy visualizer."""
    nlp = MODELS[model]
    doc = nlp(text)
    if collapse_phrases:
        for np in list(doc.noun_chunks):
            np.merge(tag=np.root.tag_, lemma=np.root.lemma_,
                     ent_type=np.root.ent_type_)
    options = {'collapse_punct': collapse_punctuation}
    return spacy.displacy.parse_deps(doc, options)

@hug.post('/ent')
def ent(text: str, model: str):
    """Get entities for displaCy ENT visualizer."""
    nlp = MODELS[model]
    doc = nlp(text)

    for ent in doc.ents:
        if connected:
            es.index(index='test_twitter', doc_type='words', body={'tag': ent.text})
        else:
            print('text :')
            print(ent.text)
            print(ent.label_)
    # return [{'text': ent.text, 'start': ent.start_char, 'end': ent.end_char, 'label': ent.label_}
    #         for ent in doc.ents]

if __name__ == '__main__':

    try:
        es = Elasticsearch([{'host': 'localhost', 'port': 9200}]).ping()
    except ConnectionRefusedError:
        print ('Connection Errrorrr!')

    if es:
        es = Elasticsearch([{'host': 'localhost', 'port': 9200}])
        r = requests.get('http://localhost:9200')
        es.indices.delete(index='test_twitter', ignore=[400, 404])
        connected = True
        print('Connected to ES..')
    else:
        print('Not connected to ES...')

    import waitress
    app = hug.API(__name__)
    app.http.add_middleware(CORSMiddleware(app))
    waitress.serve(__hug_wsgi__, port=8000)