How do I disable the security certificate check in Python requests

From the documentation:

requests can also ignore verifying the SSL certificate if you set verify to False.

>>> requests.get('https://kennethreitz.com', verify=False)<Response [200]>

If you're using a third-party module and want to disable the checks, here's a context manager that monkey patches requests and changes it so that verify=False is the default and suppresses the warning.

import warningsimport contextlibimport requestsfrom urllib3.exceptions import InsecureRequestWarningold_merge_environment_settings = requests.Session.merge_environment_settings@contextlib.contextmanagerdef no_ssl_verification():    opened_adapters = set()    def merge_environment_settings(self, url, proxies, stream, verify, cert):        # Verification happens only once per connection so we need to close        # all the opened adapters once we're done. Otherwise, the effects of        # verify=False persist beyond the end of this context manager.        opened_adapters.add(self.get_adapter(url))        settings = old_merge_environment_settings(self, url, proxies, stream, verify, cert)        settings['verify'] = False        return settings    requests.Session.merge_environment_settings = merge_environment_settings    try:        with warnings.catch_warnings():            warnings.simplefilter('ignore', InsecureRequestWarning)            yield    finally:        requests.Session.merge_environment_settings = old_merge_environment_settings        for adapter in opened_adapters:            try:                adapter.close()            except:                pass

Here's how you use it:

with no_ssl_verification():    requests.get('https://wrong.host.badssl.com/')    print('It works')    requests.get('https://wrong.host.badssl.com/', verify=True)    print('Even if you try to force it to')requests.get('https://wrong.host.badssl.com/', verify=False)print('It resets back')session = requests.Session()session.verify = Truewith no_ssl_verification():    session.get('https://wrong.host.badssl.com/', verify=True)    print('Works even here')try:    requests.get('https://wrong.host.badssl.com/')except requests.exceptions.SSLError:    print('It breaks')try:    session.get('https://wrong.host.badssl.com/')except requests.exceptions.SSLError:    print('It breaks here again')

Note that this code closes all open adapters that handled a patched request once you leave the context manager. This is because requests maintains a per-session connection pool and certificate validation happens only once per connection so unexpected things like this will happen:

>>> import requests>>> session = requests.Session()>>> session.get('https://wrong.host.badssl.com/', verify=False)/usr/local/lib/python3.7/site-packages/urllib3/connectionpool.py:857: InsecureRequestWarning: Unverified HTTPS request is being made. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.io/en/latest/advanced-usage.html#ssl-warnings  InsecureRequestWarning)<Response [200]>>>> session.get('https://wrong.host.badssl.com/', verify=True)/usr/local/lib/python3.7/site-packages/urllib3/connectionpool.py:857: InsecureRequestWarning: Unverified HTTPS request is being made. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.io/en/latest/advanced-usage.html#ssl-warnings  InsecureRequestWarning)<Response [200]>

Use requests.packages.urllib3.disable_warnings() and verify=False on requests methods.

import requestsfrom urllib3.exceptions import InsecureRequestWarning# Suppress only the single warning from urllib3 needed.requests.packages.urllib3.disable_warnings(category=InsecureRequestWarning)# Set `verify=False` on `requests.post`.requests.post(url='https://example.com', data={'bar':'baz'}, verify=False)

To add to Blender's answer, you can disable SSL certificate validation for all requests using Session.verify = False

import requestssession = requests.Session()session.verify = Falsesession.post(url='https://example.com', data={'bar':'baz'})

Note that urllib3, (which Requests uses), strongly discourages making unverified HTTPS requests and will raise an InsecureRequestWarning.