Troubleshooting
Tests Pass Locally but Fail on the Platform
The platform runs tests in a sandboxed environment. Common reasons for differences:
- Missing imports — the platform environment has a curated set of packages, not every PyPI package
- File system access — exercises run in a read-only environment
- Network access — external HTTP requests are not allowed in the sandbox
Code Editor Not Loading
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- Clear your browser cache and reload the page
- Disable browser extensions that might block JavaScript
- Try a different browser (Chrome or Firefox recommended)
Verification Email Not Received
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- Make sure you entered the correct email address
- Try requesting a new verification email from the login page
Subscription Issues
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- Contact us at /contacts/ for billing questions
Forgot Password
Use the password reset page to receive a reset link via email.
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