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Load environment variables from .env file in Python 3

In Python 2, I was able to create a file named `.env` within a project folder like so:
# .env
MY_ID=abc123
TOKEN=4567890
Then in a Python file in the same directory, I could read these variables like so:
# example.py
import os
~~id = os.environ[“MY_ID”]~~
~~token = os.environ[“TOKEN”]~~
This would work fine and load these variables from the file automatically when run.
~~In Python 3, this is not working (I get a KeyError when trying to read the first environment variable),~~
So instead I tried to use the `python-dotenv` package to load the variables like so:
# example.py
import os
from dotenv import load_dotenv
load_dotenv()
id = os.environ[“MY_ID”]
token = os.environ[“TOKEN”]
~~But this still results in a KeyError.~~
Trying `os.getenv()` instead of `os.environ()` (as I saw in forum postings) results in `TypeError: 'function' object is not subscriptable`.
Is there a simple way to read these variables as environment variables from a `.env` file using this paradigm or do I need to implement a custom config in Python 3?

In Python 2, I was able to create a file named `.env` within a project folder like so:
# .env
MY_ID=abc123
TOKEN=4567890
Then in a Python file in the same directory, I could read these variables like so:
# example.py
import os
id = os.environ["MY_ID"]
token = os.environ["TOKEN"]
This would work fine and load these variables from the file automatically when run.
In Python 3, this is not working (I get a `KeyError` when trying to read the first environment variable),
So instead I tried to use the `python-dotenv` package to load the variables like so:
# example.py
import os
from dotenv import load_dotenv
load_dotenv()
id = os.environ[“MY_ID”]
token = os.environ[“TOKEN”]
But this still results in a `KeyError`.
Trying `os.getenv()` instead of `os.environ()` (as I saw in forum postings) results in `TypeError: 'function' object is not subscriptable`.
Is there a simple way to read these variables as environment variables from a `.env` file using this paradigm or do I need to implement a custom config in Python 3?

python python-3 environment-variables

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