Execution environment limitations
Your code only has access to the input data you provide. You can provide command-line arguments and environment variables, as well as files andstdin.
Output files are not yet supported. To get output from your script you can
write to stdout and stderr or send data over the network via
HTTP.
Each interpreter has access to its language’s standard library. Adding
third-party packages is currently only supported
for Python and JavaScript.
There is currently no support for alternative interpreter versions.
See the Python, JavaScript,
Ruby and PHP interpreter pages for
additional information regarding interpreter-specific limitations.