def _is_frac()

in prm800k/grading/grader.py [0:0]

• 2 lines of code
• 1 McCabe index (conditional complexity)

def _is_frac(expr: str) -> bool:
    return bool(re.search(r"^-?[0-9]+.?/0*[1-9][0-9]*.?$", expr))