# What exactly is this error? invalid base 10 digit 'c'
**URL:** https://discourse.julialang.org/t/what-exactly-is-this-error-invalid-base-10-digit-c/83267
**Category:** New to Julia
**Created:** [June 23, 2022, 6:18pm UTC](https://discourse.julialang.org/t/what-exactly-is-this-error-invalid-base-10-digit-c/83267 "2022-06-23T18:18:07Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@DFKMB](https://discourse.julialang.org/u/DFKMB)
#### Post date: [June 23, 2022, 6:18pm UTC](https://discourse.julialang.org/t/what-exactly-is-this-error-invalid-base-10-digit-c/83267/1 "2022-06-23T18:18:07Z")
[[Album] imgur.com  ](https://imgur.com/a/LGbiRew)
Thanks.
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### Author:  [@gustaphe](https://discourse.julialang.org/u/gustaphe)
#### Post date: [June 23, 2022, 6:25pm UTC](https://discourse.julialang.org/t/what-exactly-is-this-error-invalid-base-10-digit-c/83267/2 "2022-06-23T18:25:50Z")
Please paste your code and outputs, preferably in triple backtick fences, rather than linking images.
What happens is you’re trying to parse user input as an integer, but it’s being fed a `'c'` which isn’t a base 10 digit.
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### Author:  [@pfitzseb](https://discourse.julialang.org/u/pfitzseb)
#### Post date: [June 23, 2022, 6:37pm UTC](https://discourse.julialang.org/t/what-exactly-is-this-error-invalid-base-10-digit-c/83267/3 "2022-06-23T18:37:42Z")
The Python extension is being annoying.
> **Tip** : To prevent automatic activation of a selected environment, add `"python.terminal.activateEnvironment": false` to your `settings.json` file (it can be placed anywhere as a sibling to the existing settings).
as per
> **[Using Python Environments in Visual Studio Code](https://code.visualstudio.com/docs/python/environments#_select-and-activate-an-environment)**
>
> Configuring Python Environments in Visual Studio Code