61 lines
1.1 KiB
Python
61 lines
1.1 KiB
Python
# test sys.settrace with while and for loops
|
|
|
|
import sys
|
|
|
|
try:
|
|
sys.settrace
|
|
except AttributeError:
|
|
print("SKIP")
|
|
raise SystemExit
|
|
|
|
|
|
def print_stacktrace(frame, level=0):
|
|
print(
|
|
"%2d: %s@%s:%s => %s:%d"
|
|
% (
|
|
level,
|
|
" ",
|
|
frame.f_globals["__name__"],
|
|
frame.f_code.co_name,
|
|
# reduce full path to some pseudo-relative
|
|
"misc" + "".join(frame.f_code.co_filename.split("tests/misc")[-1:]),
|
|
frame.f_lineno,
|
|
)
|
|
)
|
|
|
|
if frame.f_back:
|
|
print_stacktrace(frame.f_back, level + 1)
|
|
|
|
|
|
trace_count = 0
|
|
|
|
|
|
def trace_tick_handler(frame, event, arg):
|
|
global trace_count
|
|
print("### trace_handler::main event:", event)
|
|
trace_count += 1
|
|
print_stacktrace(frame)
|
|
return trace_tick_handler
|
|
|
|
|
|
def test_loop():
|
|
# for loop
|
|
r = 0
|
|
for i in range(3):
|
|
r += i
|
|
print("test_for_loop", r)
|
|
|
|
# while loop
|
|
r = 0
|
|
i = 0
|
|
while i < 3:
|
|
r += i
|
|
i += 1
|
|
print("test_while_loop", i)
|
|
|
|
|
|
sys.settrace(trace_tick_handler)
|
|
test_loop()
|
|
sys.settrace(None)
|
|
print("Total traces executed: ", trace_count)
|