Develop Reference

Cannot use Streamlit app due to SSL certificate error

I built an app using Streamlit (on Mac) which uses data from Yahoo Finance and I'm trying to run it locally. It was working fine last week, but now when I try to run it I get the following error:
SSLError: HTTPSConnectionPool(host='finance.yahoo.com', port=443): Max retries exceeded with url: /quote/SLY (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (_ssl.c:1125)')))
This is also preventing me from installing packages as well, so it is completely halting my project progress. I can't do anything until this is solved.
'I have never really developed an app before, so I have no idea what to do in this situation (I'm really a noob in this area so please forgive my ignorance). I have tried researching this problem online and believe I need to "add a certificate" to my list of certificates but don't understand how to do that. I am not using "requests" in my code. In fact, my code is literally just a simple script in VScode that I run in my terminal with streamlit run myapp.py. I have thought about just disabling SSL certification, but apparently that is a bad idea (I don't even understand how to do that anyway).

I will try my best to show the steps generally, if you have problems feel free to ask.
Step 1:
Obtaining an SSL certificate.
You can purchase one easily from any trusted website.
Step 2:
Install the SSL certificate on your server.
The exact steps for doing this will depend on your hosting environment and the type of certificate you have. But do not fear most of them have a guide to how to add them
For example if you only want to use it in local I believe there is a trick such as this example
Step 3:
Configure your Streamlit app to use the SSL certificate.
In the .streamlit/config.toml file, add the following lines:
[server]
enableCORS = false
headless = true
port = 8080
enableXsrfProtection = true
certfile = /path/to/certificate.crt
keyfile = /path/to/privatekey.key
(I wrote path but those should be the path to given files)

Does anyone know what this error code means? my program worked fine yesterday. "SSL: CERTIFICATE_VERIFY_FAILED"

====== WebDriver manager ======
Current google-chrome version is 91.0.4472
Get LATEST driver version for 91.0.4472
UNEXPECTED ERROR:
HTTPSConnectionPool(host='chromedriver.storage.googleapis.com', port=443): Max retries exceeded with url: /LATEST_RELEASE_91.0.4472 (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (_ssl.c:1129)')))

SSL verification errors can happen due to a number of reasons. Some of them are:
General network issues or outages
A real SSL issue, it is damaged or simply it has expired.
A new firewall rule that could be blocking your network traffic.
An antivirus software
A network security client ot network tool
A Python version/system libraries with SSL issues (2.7.11 seems to work for most users).
Verify you are not having any network or communication issues or changees; or new software that have installed on your computer.
Can you try again after upgrading to the latest version of Google Cloud SDK, and Python 2.7.11 and verify that none of these are the cause?
There are some procedures like this one or this one to try fo fix your issue.

Python suds: Getitng SSL: CERTIFICATE_VERIFY_FAILED error

I'm trying to request some data from a website using suds in Python. I'm getting urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1076)> while creating suds client. I do not get this error when I'm running the project locally but this issue happens when I try to deploy this project to a Linux host so that it can be automated.
One thing to note is, this python code lies behind AppProxy so that it can connect to internet. I have verified using a CURL request that the remote hosts is able to connect to the website.
I'm new to SSL Certificate thing not so sure about this certificate issue, do I need to install any server certificates on the hosts so that it can verified by SSL Validation? Any leads would be helpful. Thanks.

How to get rid of SSL Error in Python for safe websites?

I am new to Python and coding and was trying to learn web scraping. I am getting the certificate verification error. I have read other posts suggesting setting (verify = False) but others discouraged this for safety reasons.
I tried to install pip3 install certifi and I get (Requirement already satisfied:)
Code line:
urllib.request.urlopen("https://automatetheboringstuff.com").read()
Error:
urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:833)>
I tried other websites, like google and yahoo which appear safe and Safari is accepting its certificate, but when I try with Python I get the same error.
Is there a safe solution to this?

Connecting using Pywinrm with ssl

I followed Matt Wrock's very helpful guide: Understanding and troubleshooting WinRM connection and authentication,
(http://www.hurryupandwait.io/blog/understanding-and-troubleshooting-winrm-connection-and-authentication-a-thrill-seekers-guide-to-adventure) and I was able to set up an SSL connection on my remote machine, which I verified using:
Test-WSMan -ComputerName "My DNS" -UseSSL
... which returned a non-error message. And I can also connect from powershell:
Enter-PSSession -ComputerName "My DNS" -Credential $cred -UseSSL
However, when I run the following python code:
import winrm
s = winrm.Session('My DNS', auth=('Remote Username', 'Remote Password'), transport='ssl')
r = s.run_cmd('ipconfig', ['/all'])
... I get receive the following error code:
winrm.exceptions.WinRMTransportError: 500 WinRMTransport. [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:590)
The certificate verify failed error makes me think that I improperly configured the SSL configuration; however, I seem to be able to connect from Powershell.
Can anybody tell me what I am doing wrong or how to properly connect using ssl?
Thanks for your time

Problem found with the pywinrm version.
Use python version 2.7.10 and pywinrm version (0.1.1). It Worked fine without any error.
Latest version forcibly verifying the ssl certificate even we put exception handlers to ignore certificate in the script.