Python httplib2 certificate verify failed

If you are trying to make a https connection using httplib2.Http to a server which uses self-signed certificate, you might face "httplib2.SSLHandshakeError: [Errno 1] _ssl.c:480: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed".

There are 2 solutions:
1. httplib2.Http(disable_ssl_certificate_validation=True).request('https://www.godaddy.com/')

2. httplib2 uses its own certificate store. Usually, the location would be /usr/local/lib/python2.7/dist-packages/httplib2/httplib2/cacerts.txt.
Edit this file to add the certificate of your server and you should be good to go.

Steps to download site certificates (eg. certificates from DigiCert):

1. Open the site
2. Click on the lock icon in the address bar.
3. 
   
1. Chrome:
1. Go to "Connection" tab
2. Click on "Certificate Information"
2. Firefox:
1. Click "More Information"
2. Go to "Security" tab
3. Click "View certificate"
4. Go to "Details" tab
4. Make a note of the first node of certificate (eg "DigiCert High Assurance EV Root CA")
5. Go to DigiCert certificates page (https://www.digicert.com/digicert-root-certificates.htm).
6. Search for the certificate with the name you found above and download it.
7. Convert the .crt file to .pem "openssl x509 -in DigiCertHighAssuranceEVRootCA.crt -out DigiCertHighAssuranceEVRootCA.pem -outform PEM"
8. If above steps returns error, refer to http://info.ssl.com/article.aspx?id=12149. For this certificate you need to pass "-inform der"
9. Open the DigiCertHighAssuranceEVRootCA.pem, copy the contents and paste in cacerts.txt