Where to get RAND_egd?

I am testing out an app in GAE. It runs fine when deployed to Google's server, but locally it crashes because it cannot import name RAND_egd. The place where it happens is in C:\Program Files(x86)Google\google_appengine\google\appengine\dist27\socket.py line 73:

from _ssl import RAND_add, RAND_egd, RAND_status, SSL_ERROR_ZERO_RETURN, SSL_ERROR_WANT_READ, SSL_ERROR_WANT_WRITE, SSL_ERROR_WANT_X509_LOOKUP, SSL_ERROR_SYSCALL, SSL_ERROR_SSL, SSL_ERROR_WANT_CONNECT, SSL_ERROR_EOF, SSL_ERROR_INVALID_ERROR_CODE

According to this SO answer, the solution is to comment out the import, but that was in the standard socket.py. I removed RAND_egd from the Google supplied file, and it worked, for now.

What is the proper solution to this problem? Will RAND_egd always be not needed in socket.py? Is that Google supplied socket.py not the same as the one in Google's web servers?

There is nothing wrong with your solution. This is due to a bug in socket.py distributed with the SDK 1.9.38.

Windows doesn't support the RAND_egd library.

There is a more elegant workaround that conditionally imports the library if not Windows.

You have to make changes to the file: C:\Program Files (x86)\Google\google_appengine\google\appengine\dist27\socket.py

Then you can use Python later than 2.7.9 with the Windows App Engine SDK,

The required changes to the file are described here https://code.google.com/p/googleappengine/issues/detail?id=12783

You will need admin access to modify the file. It might be easier to edit the file in a writable location then copy it to the read-only destination.

Check the status of this issue. Hopefully, a new release of the SDK will mean the patch is no longer required. Otherwise, repeat this procedure after each upgrade of the App Engine SDK.