Exception has occurred: KeyError

[LeCoxer]

middle.py:
def middle(x, y, z):
m = z
if y < z:
if x < y:
m = y
elif x < z:
m = y # bug
else:
if x > y:
m = y
elif x > z:
m = x
return m

tmp.py:
import sflkitlib.lib

def middle(x, y, z):
sflkitlib.lib.add_line_event(0)
m = z
sflkitlib.lib.add_line_event(1)
if y < z:
sflkitlib.lib.add_line_event(2)
if x < y:
sflkitlib.lib.add_line_event(3)
m = y
else:
sflkitlib.lib.add_line_event(4)
if x < z:
sflkitlib.lib.add_line_event(5)
m = y
else:
sflkitlib.lib.add_line_event(6)
if x > y:
sflkitlib.lib.add_line_event(7)
m = y
else:
sflkitlib.lib.add_line_event(8)
if x > z:
sflkitlib.lib.add_line_event(9)
m = x
sflkitlib.lib.add_line_event(10)
return m

working.py:
import enum
import importlib
import inspect
import os
import shutil
import middle

from IPython.display import HTML

from sflkit.color import ColorCode
from sflkit import instrument_config, analyze_config
from sflkit.config import Config

class TestResult(enum.Enum):

def repr(self):
    return self.value

PASS = 'PASS'
FAIL = 'FAIL'

def test(function, x, y, z, expected):
try:
if function(x, y, z) == expected:
return TestResult.PASS
else:
return TestResult.FAIL
except BaseException:
return TestResult.FAIL

def test_middle(x, y, z, expected):
return test(middle, x, y, z, expected)

test_middle(3, 2, 1, expected=2)
test_middle(3, 1, 2, expected=2)
test_middle(2, 1, 3, expected=2)

source = inspect.getsource(middle)
print(source)

middle_py = 'middle.py'
tmp_py = 'tmp.py'

with open(middle_py, 'w') as fp:
fp.write(source)

def test_middle_import(x, y, z, expected):
from middle import middle
return test(middle, x, y, z, expected)

test_middle_import(3, 2, 1, expected=2), test_middle_import(3, 1, 2, expected=2), test_middle_import(2, 1, 3, expected=2)

language='Python'
predicates='Line'
metrics='Tarantula'
passing='event-files/0,event-files/1'
failing='event-files/2'

def get_config():
return Config.create(path=middle_py, working=tmp_py, language=language, predicates=predicates, metrics=metrics, passing=passing, failing=failing)

def instrument(out=True):
instrument_config(get_config())
if out:
with open(tmp_py, 'r') as fp:
print(fp.read())

instrument()

def test_tmp(x, y, z, expected):
import tmp
importlib.reload(tmp)
tmp.sflkitlib.lib.reset()
try:
return test(tmp.middle, x, y, z, expected)
finally:
tmp.sflkitlib.lib.dump_events()
del tmp

event_files = 'event-files'

def run_tests():
if os.path.exists(event_files):
shutil.rmtree(event_files)
os.mkdir(event_files)
os.environ['EVENTS_PATH'] = os.path.join(event_files, '0')
test_tmp(3, 2, 1, expected=2)
os.environ['EVENTS_PATH'] = os.path.join(event_files, '1')
test_tmp(3, 1, 2, expected=2)
os.environ['EVENTS_PATH'] = os.path.join(event_files, '2')
test_tmp(2, 1, 3, expected=2)

def analyze():
run_tests()
print(Config)
return analyze_config(get_config())

results = analyze()

results

def sfl():
instrument(out=False)
results = analyze()
code = ColorCode(results[predicates.upper()][metrics])
return HTML(code.code(middle_py, source, color=True, suspiciousness=True))

sfl()

I wanted to test the library's functionality on a demo case
An exception KeyError is thrown
sflkit version 0.2.16
The same thing happens when using it through the terminal

Exception:
Traceback (most recent call last):
File "C:\SFLkitpr\working.py", line 98, in
results = analyze()
File "C:\SFLkitpr\working.py", line 96, in analyze
return analyze_config(get_config())
File "..\sflkit_init_.py", line 46, in analyze_config
analyzer.analyze()
File "..\sflkit\analysis\analyzer.py", line 32, in analyze
self._analyze(event_file)
File "..\sflkit\analysis\analyzer.py", line 24, in _analyze
for event in event_file.load():
File "..\sflkit\model\event_file.py", line 34, in load
yield event.load_next_event(self._file_pointer, self.mapping.mapping)
File "..\sflkitlib\events\event.py", line 587, in load_next_event
event = events[read_int(stream, int.from_bytes(test, ENDIAN))]
KeyError: 0