otoroshi | Lightweight api management on top of a modern http reverse | Proxy library

The TLS/SSL errors are due to issues that may occur at one of the following levels:

1. The level of Client Application;
2. The level of Google's API Client Library and of its corresponding requisites (see them listed below);
3. The level of the Standard Python's SSL implementation (TLS/SSL wrapper for socket objects);
4. The level of the Operating System itself.

Addressing the OP's issues above, my recommendation is as follows:

Tackling SSL errors at the level of the client application, if experiencing the kind of errors seen above, instead of uploading video files in one go, do use the Resumable Upload Protocol.

The employment of YouTube Data API's resumable uploading feature can be done quite easily, for both Python v2 and v3, as to be seen below.

Do note that using this feature will make the app be more resilient to network-related errors.

Before attempting to use the Python script quoted below, one should make sure that all of the libraries (i.e. Python packages) listed below are up-to-date. (Just issue pip install --upgrade on each of the named packages.)

• Google API Client Library for Python
  google-api-python-client
• Google Authentication Library for Python: oauthlib integration
  google-auth-oauthlib
• Google Authentication Library for Python: httplib2 transport
  google-auth-httplib2
• Google Authentication Library for Python
  google-auth

Prior to modifying your app, do test that the resumable uploading feature of the API (that is the Resumable Uploading Protocol) does indeed work without error (thus without SSL errors too).

First thing to do is to download the time-tested public Google script upload_video.py. (This script has an official documentation too. To obtain a self-explanatory usage information page from the script just issue it with the command line option --help.)

If you're running Python v3, then you'll have to patch upload_video.py as to be seen further below. In any case, for testing the resumable upload feature, simply issue at a command line prompt a command like:

python upload_video.py --file your_video_file.mp4 --title '...' --description '...' --privacyStatus private

or, by case:

python3 upload_video.py --file your_video_file.mp4 --title '...' --description '...' --privacyStatus private

Note that your client secrets file -- client_secret.json -- has to be present in the directory that hosts upload_video.py.

Upon running successfully upload_video.py, do check the newly uploaded video on (and eventually remove it from) your own YouTube Studio page at:

https://studio.youtube.com/channel/YOUR_CHANNEL_ID/videos/upload.

If everything worked OK -- no SSL errors --, then you may proceed refactoring your own code such that it to include the Python code in upload_video.py according to your needs.

As currently provided by Google, the script upload_video.py is coded in the Python v2 language; for to make it work with Python v3, do apply to it the following changes:

1. First line of this script: replace python with python3 (this is not really necessary on a Windows machine);
2. Replace import httplib with import http.client;
3. Replace all occurrences of httplib. with http.client. (do note the dots there);
4. Replace all print EXPRESSION with print(EXPRESSION);
5. Replace all except IDENTIFIER, e with except IDENTIFIER as e.

Or, otherwise, do apply the following .patch file to the script file: