Python 3.x Python抑制特定的输出消息

我正在使用tldextract库解析Python中的URL。当我运行它时，它会生成许多我想要抑制的FILELOCK消息。我不想抑制任何其他标准输出消息（我有许多日志消息-我想看到的信息性消息）。我使用多处理，并使用我笔记本电脑的所有8个内核在一大组URL上运行

有什么建议吗？详情如下:

下面是示例代码。我尝试使用contextlib（）。但是，也许我没有正确地使用它

import io, tldextract, contextlib, os

def get_sld(self, reg_domain_name):
    """
    Get only the second-level domain.
    :param reg_domain_name: sports.cnn.com
    :return: cnn
    """
    domain = reg_domain_name
    #f = io.StringIO()
    with contextlib.redirect_stdout(os.devnull):
        if reg_domain_name:
            try:
                ext = tldextract.extract(reg_domain_name)
            except:
                logger.info(f'Unable to extract domain from {reg_domain_name}. Using given fqdn.')
            else:
                domain = ext.domain

    return domain

上面的代码生成了许多消息，如下..我想抑制这些消息：

2020-10-29 20:00:11,750 - filelock - filelock - INFO - Lock 4992537872 released on /Users/sri/p37/lib/python3.7/site-packages/tldextract/.suffix_cache/urls/62bf135d1c2f3d4db4228b9ecaf507a2.tldextract.json.lock
2020-10-29 20:00:11,765 - filelock - filelock - INFO - Lock 4992398992 released on /Users/sri/p37/lib/python3.7/site-packages/tldextract/.suffix_cache/publicsuffix.org-tlds/de84b5ca2167d4c83e38fb162f2e8738.tldextract.json.lock
2020-10-29 20:00:11,790 - filelock - filelock - INFO - Lock 4992506640 acquired on /Users/sri/p37/lib/python3.7/site-packages/tldextract/.suffix_cache/publicsuffix.org-tlds/de84b5ca2167d4c83e38fb162f2e8738.tldextract.json.lock
2020-10-29 20:00:11,796 - filelock - filelock - INFO - Lock 4992529872 acquired on /Users/sri/p37/lib/python3.7/site-packages/tldextract/.suffix_cache/urls/62bf135d1c2f3d4db4228b9ecaf507a2.tldextract.json.lock
2020-10-29 20:00:11,802 - filelock - filelock - INFO - Lock 4992529872 released on /Users/sri/p37/lib/python3.7/site-packages/tldextract/.suffix_cache/urls/62bf135d1c2f3d4db4228b9ecaf507a2.tldextract.json.lock