Cannot get samples to work with youtube-api; authorization problems - youtube-api

Question

I'm trying to run sample: https://github.com/youtube/api-samples/blob/master/python/search.py and am getting errors. That is, I'm unsure what to replace DEVELOPER_KEY with.
Since I'm guess I'm not using OAuth, I should have Public API, but am unsure how to proceed, since all I want to do is run from terminal this script and get some output.
I've tried creating Server Public API access with ip set to 0.0.0.0/32; but when trying to run this sample with API key I get the following error:
An HTTP error 403 occurred:
{
"error": {
"errors": [
{
"domain": "usageLimits",
"reason": "accessNotConfigured",
"message": "Access Not Configured. Please use Google Developers Console to activate the API for your project."
}
],
"code": 403,
"message": "Access Not Configured. Please use Google Developers Console to activate the API for your project."
}
}
Ideally, my goal is to run a search query, get top few videos and print their view count.
EDIT:
I've opted out for using server API access with any key accepted. I fiddled with 0.0.0.0/32 because I misunderstood if I left the field blank any IP would be accepted. Now it works.

Answer 1

First you need to register your application.
STEP 1.
Creat a project. It's a large button you cannot miss him !
STEP 2.
Go in your project in the section APIs
Search on YouTube API use the version 3. You need to go down the page an enable YouTube Data API v3
Basically YouTube Data API v3 is now to ON
STEP 3.
Go in the section Credentials and click :
Creat a new key
After that, you will have several options :
Two kinds of API keys are available in the Google Developers Console:
Use a server key if your application is running on a server. Never
share this kind of API key outside your server code. For example,
never embed this key in a web page. To prevent quota theft, restrict
your key so that requests are only allowed from your servers' source
IP addresses. Use a browser key if your application is running on a
client, for example from JavaScript or any other client-side
web-browser context. To prevent your browser key from being used on
unauthorized sites, only allow referrals from domains that you
administer.
So after you have your API Key (wich is public)
Then use it in your code !