SSL errors when testing certain HTTPS sites

I’m getting SSL errors sometimes when using certain HTTPS sites using locust:

In [26]: u
Out[26]: <locust.core.HttpLocust at 0x104f94cd0>

In [27]: u.host
Out[27]: 'https://www.dodopal.com'

In [28]: res = u.client.get('/'); res.__dict__
Out[28]: 
{'_content': None,
 '_content_consumed': True,
 'cookies': <RequestsCookieJar[]>,
 'elapsed': datetime.timedelta(0),
 'encoding': None,
 'error': requests.exceptions.SSLError(requests.packages.urllib3.exceptions.SSLError(ssl.SSLError(1,
                                                                                         u'[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:590)'))),
 'headers': {},
 'history': [],
 'raw': None,
 'reason': None,
 'request': <PreparedRequest [GET]>,
 'status_code': 0,
 'url': None}

Other sites seem to be fine:

In [35]: u.host = 'https://www.eff.org'

In [36]: u.client.get('/')
Out[36]: <Response [200]>

[Anup-Deo21]

How to get rid from “SSL: CERTIFICATE_VERIFY_FAILED” Error

On Windows, Python does not look at the system certificate, it uses its own located at ?\lib\site-packages\certifi\cacert.pem.

The solution to your problem:

1. download the domain validation certificate as *.crt or *pem file
2. open the file in editor and copy it’s content to clipboard
3. find your cacert.pem location: from requests.utils import DEFAULT_CA_BUNDLE_PATH; print(DEFAULT_CA_BUNDLE_PATH)
4. edit the cacert.pem file and paste your domain validation certificate at the end of the file.
5. Save the file and enjoy requests!

[mjohnson767]

I’m not sure what this means: “paste your domain validation certificate at the end of the file”. When I open my domain.crt up in notepad it’s all encrypted. 0‚0‚ 
]º–l á“GèaÜ. That’s what I’d be adding to the locust pem file. Can I get some clarification on this?