Lesson 10: "ValueError: Unable to expand environment..."

[yellowcheese773]

I did copy exactly every step from Patrick, unfortunately, I get this error, when I do:

brownie run scripts/get_weth.py --network kovan

I don't know how to fix this.

Here is my brownie-config:

I would be really thankful, if someone can help me.

[toddabraham]

Do you mind sharing the contents of your helpful_scripts.py file? It maybe that you need to add network, and config to your from brownie import... line. It should look this this from brownie import accounts, network, config.

[yellowcheese773]

Of course, here is my helpful_scripts.py file:

I noticed that brownie import, "brownie" is not colored, or is flagged as a problem:

Could that be a serious problem?

[toddabraham]

You have forgotten an e in brownie. That may be the issue.

[toddabraham]

Ah, but I noticed in your previous screen shot, you have brownie spelled correctly.

[toddabraham]

Maybe check to make sure you have the right INFURA Project ID in your .env file.

[yellowcheese773]

I checked my Infura project Id, i even created a new project Id and put that in the env and tried it again. Unfortunately it did not work either. I guess i have to go through all of it again and find the problem. Anyway, thanks for your help mate.

[PatrickAlphaC]

It looks like your $WEB3_INFURA_PROJECT_ID is undefined. Do you have that in your .env file like in this repo?

You'll also need the line dotenv: .env in your config.

https://github.com/PatrickAlphaC/aave_brownie_py/blob/main/.env

You'll need to uncomment the lines (remove the #'s)

[PatrickAlphaC]

Ok. Could you let us know if/when you resolve it? It should just be that your environment variables are not being set properly. This is a pretty common error. What's your .env file look like?

[Daruma1800]

I have been having an issue were my .env file isn't even recognized, the export string isn't highlighted and have been stuck on this for awhile now, I have deleted the file and redid it a few times now. Have you guys run into this problem before?

[Daruma1800]

@PatrickAlphaC @cromewar forgot to tag you both here, also not to worry this is a dumby metamask account for this course.

[cromewar]

Make sure to source .env on your terminal to get the env variables, also you can use the export command directly into the terminal with the private keys, give it a try.

[PatrickAlphaC]

Or add dotenv: .env to your brownie-config.yaml

[Daruma1800]

Thanks guys, I just set up a new brownie init and it’s been working but still no highlight for the .env file.

…

On Mon, Jan 24, 2022 at 5:32 PM Patrick Collins ***@***.***> wrote: Or add dotenv: .env to your brownie-config.yaml — Reply to this email directly, view it on GitHub <#114 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AWQ7ZR2ECKUPVMSG6YQ2QPDUXXHRLANCNFSM5E7WT5GQ> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>. You are receiving this because you commented.Message ID: <smartcontractkit/full-blockchain-solidity-course-py/repo-discussions/114/comments/2038406 @github.com>

[cromewar]

As Patrick said, did you add dotenv to brownie-config.yaml?