Wrap Python print statement to breakpoint when something prints by catching output

capture.py

import sys
old_f = sys.stdout

BAD_OUTPUT = "hospitalArrival_dateTimeStrokeOnSet"

class F:

    def write(self, x):
        if x == BAD_OUTPUT:
            import pdb ; pdb.set_trace()
        old_f.write(x)

    def writelines(self, lines):
        old_f.writelines(lines)

    def flush(self):
        old_f.flush()

sys.stdout = F()