This question type shows how a Python script can be used to run code in a different language. In this example, the different language is C, but it can be any language installed on the Jobe server. 

Running other languages via Python scripts gives lots of extra flexibility, such as the ability to check the student code before running it or to change compilation or linking flags.

In this example a template parameter cflags can be used to supply a gcc command line substring of compiler flags, defaulting to

-std=c99 -Wall -Werror

This question type is equivalent to the c_program question type: the student is required to submit an entire C program, which is compiled and run for each test case, with the standard input supplied in that test case. Compiling for each test is perfectly acceptable for C, where the compile time is generally negligible compared to the total question submission turn-around time, but for languages with a very high compile cost a combinator template, with Allow multiple stdins set, could be used, albeit with a greatly increased complexity.