'Python requests POST call with OAuth2 token returns 401

I have the following Python function which takes an access_token from my company's access token provider and hits the URL stored in matter_hydration_url:

def hydration_request(access_token, matter_hydration_url):
    hydration_call_headers = {'Authorization': 'Bearer ' + access_token}
    response = requests.post(matter_hydration_url, headers=hydration_call_headers)
    response.raise_for_status()

I have tested BOTH access_token AND matter_hydration_url externally, through POSTMAN, and they both work. Unfortunately, in this code, the response variable has status_code field 401. I think I am mis-using requests.post(). Any ideas?

Solution 1:^[1]

Worked after I changed Bearer in the String of line 2 to Access ¯_(?)_/¯

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Solution 1	Jason

'Python requests POST call with OAuth2 token returns 401

Solution 1:[1]

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Solution 1:^[1]