tests: Convert remaining "sys.exit()" to "raise SystemExit".

tests/extmod/btree1.py

@@ -4,8 +4,7 @@ try:
     import uerrno
 except ImportError:
     print("SKIP")
-    import sys
-    sys.exit()
+    raise SystemExit
 
 #f = open("_test.db", "w+b")
 f = uio.BytesIO()

tests/extmod/framebuf1.py

@@ -2,8 +2,7 @@ try:
     import framebuf
 except ImportError:
     print("SKIP")
-    import sys
-    sys.exit()
+    raise SystemExit
 
 w = 5
 h = 16

tests/extmod/framebuf16.py

@@ -2,8 +2,7 @@ try:
     import framebuf
 except ImportError:
     print("SKIP")
-    import sys
-    sys.exit()
+    raise SystemExit
 
 def printbuf():
     print("--8<--")

tests/extmod/framebuf4.py

@@ -2,8 +2,7 @@ try:
     import framebuf
 except ImportError:
     print("SKIP")
-    import sys
-    sys.exit()
+    raise SystemExit
 
 def printbuf():
     print("--8<--")

tests/extmod/machine1.py

@@ -8,8 +8,7 @@ try:
     machine.mem8
 except:
     print("SKIP")
-    import sys
-    sys.exit()
+    raise SystemExit
 
 print(machine.mem8)
 

tests/extmod/machine_pinbase.py

@@ -6,8 +6,7 @@ try:
     machine.PinBase
 except AttributeError:
     print("SKIP")
-    import sys
-    sys.exit()
+    raise SystemExit
 
 
 class MyPin(machine.PinBase):

tests/extmod/machine_pulse.py

@@ -7,8 +7,7 @@ try:
     machine.time_pulse_us
 except AttributeError:
     print("SKIP")
-    import sys
-    sys.exit()
+    raise SystemExit
 
 
 class ConstPin(machine.PinBase):

tests/extmod/machine_signal.py

@@ -9,8 +9,7 @@ try:
     machine.Signal
 except AttributeError:
     print("SKIP")
-    import sys
-    sys.exit()
+    raise SystemExit
 
 class Pin(machine.PinBase):
     def __init__(self):

tests/extmod/time_ms_us.py

@@ -1,10 +1,9 @@
-import sys
 import utime
 try:
     utime.sleep_ms
 except AttributeError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 utime.sleep_ms(1)
 utime.sleep_us(1)

tests/extmod/ubinascii_a2b_base64.py

@@ -4,9 +4,8 @@ try:
     except ImportError:
         import binascii
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 print(binascii.a2b_base64(b''))
 print(binascii.a2b_base64(b'Zg=='))

tests/extmod/ubinascii_b2a_base64.py

@@ -4,9 +4,8 @@ try:
     except ImportError:
         import binascii
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 print(binascii.b2a_base64(b''))
 print(binascii.b2a_base64(b'f'))

tests/extmod/ubinascii_crc32.py

@@ -4,16 +4,14 @@ try:
     except ImportError:
         import binascii
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 try:
     binascii.crc32
 except AttributeError:
     print("SKIP")
-    import sys
-    sys.exit()
+    raise SystemExit
 
 print(hex(binascii.crc32(b'The quick brown fox jumps over the lazy dog')))
 print(hex(binascii.crc32(b'\x00' * 32)))

tests/extmod/ubinascii_hexlify.py

@@ -4,9 +4,8 @@ try:
     except ImportError:
         import binascii
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 print(binascii.hexlify(b'\x00\x01\x02\x03\x04\x05\x06\x07'))
 print(binascii.hexlify(b'\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f'))

tests/extmod/ubinascii_micropython.py

@@ -4,9 +4,8 @@ try:
     except ImportError:
         import binascii
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 # two arguments supported in uPy but not CPython
 a = binascii.hexlify(b'123', ':')

tests/extmod/ubinascii_unhexlify.py

@@ -4,9 +4,8 @@ try:
     except ImportError:
         import binascii
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 print(binascii.unhexlify(b'0001020304050607'))
 print(binascii.unhexlify(b'08090a0b0c0d0e0f'))

tests/extmod/uctypes_32bit_intbig.py

@@ -3,9 +3,8 @@
 try:
     import uctypes
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 buf = b"12345678abcd"
 struct = uctypes.struct(

tests/extmod/uctypes_array_assign_le.py

@@ -1,9 +1,8 @@
 try:
     import uctypes
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 desc = {
     # arr is array at offset 0, of UINT8 elements, array size is 2

tests/extmod/uctypes_array_assign_native_le.py

@@ -3,11 +3,11 @@ try:
     import uctypes
 except ImportError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 if sys.byteorder != "little":
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 desc = {
     # arr is array at offset 0, of UINT8 elements, array size is 2

tests/extmod/uctypes_array_assign_native_le_intbig.py

@@ -3,11 +3,11 @@ try:
     import uctypes
 except ImportError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 if sys.byteorder != "little":
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 desc = {
     # arr is array at offset 0, of UINT8 elements, array size is 2

tests/extmod/uctypes_bytearray.py

@@ -1,9 +1,8 @@
 try:
     import uctypes
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 desc = {
     "arr": (uctypes.ARRAY | 0, uctypes.UINT8 | 2),

tests/extmod/uctypes_le.py

@@ -1,9 +1,8 @@
 try:
     import uctypes
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 desc = {
     "s0": uctypes.UINT16 | 0,

tests/extmod/uctypes_le_float.py

@@ -1,9 +1,8 @@
 try:
     import uctypes
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 desc = {
     "f32": uctypes.FLOAT32 | 0,

tests/extmod/uctypes_native_float.py

@@ -1,9 +1,8 @@
 try:
     import uctypes
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 desc = {
     "f32": uctypes.FLOAT32 | 0,

tests/extmod/uctypes_native_le.py

@@ -6,11 +6,11 @@ try:
     import uctypes
 except ImportError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 if sys.byteorder != "little":
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 
 desc = {

tests/extmod/uctypes_print.py

@@ -2,9 +2,8 @@
 try:
     import uctypes
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 # we use an address of "0" because we just want to print something deterministic
 # and don't actually need to set/get any values in the struct

tests/extmod/uctypes_ptr_le.py

@@ -3,11 +3,11 @@ try:
     import uctypes
 except ImportError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 if sys.byteorder != "little":
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 desc = {
     "ptr": (uctypes.PTR | 0, uctypes.UINT8),

tests/extmod/uctypes_ptr_native_le.py

@@ -3,11 +3,11 @@ try:
     import uctypes
 except ImportError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 if sys.byteorder != "little":
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 
 desc = {

tests/extmod/uctypes_sizeof.py

@@ -1,9 +1,8 @@
 try:
     import uctypes
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 desc = {
     # arr is array at offset 0, of UINT8 elements, array size is 2

tests/extmod/uctypes_sizeof_native.py

@@ -1,9 +1,8 @@
 try:
     import uctypes
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 S1 = {}
 assert uctypes.sizeof(S1) == 0

tests/extmod/uhashlib_sha1.py

@@ -1,4 +1,3 @@
-import sys
 try:
     import uhashlib as hashlib
 except ImportError:
@@ -8,14 +7,14 @@ except ImportError:
         # This is neither uPy, nor cPy, so must be uPy with
         # uhashlib module disabled.
         print("SKIP")
-        sys.exit()
+        raise SystemExit
 
 try:
     hashlib.sha1
 except AttributeError:
     # SHA1 is only available on some ports
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 sha1 = hashlib.sha1(b'hello')
 sha1.update(b'world')

tests/extmod/uhashlib_sha256.py

@@ -1,4 +1,3 @@
-import sys
 try:
     import uhashlib as hashlib
 except ImportError:
@@ -8,7 +7,7 @@ except ImportError:
         # This is neither uPy, nor cPy, so must be uPy with
         # uhashlib module disabled.
         print("SKIP")
-        sys.exit()
+        raise SystemExit
 
 
 h = hashlib.sha256()

tests/extmod/uheapq1.py

@@ -4,9 +4,8 @@ except:
     try:
         import heapq
     except ImportError:
-        import sys
         print("SKIP")
-        sys.exit()
+        raise SystemExit
 
 try:
     heapq.heappop([])

tests/extmod/ujson_dumps.py

@@ -4,9 +4,8 @@ except ImportError:
     try:
         import json
     except ImportError:
-        import sys
         print("SKIP")
-        sys.exit()
+        raise SystemExit
 
 print(json.dumps(False))
 print(json.dumps(True))

tests/extmod/ujson_dumps_extra.py

@@ -3,8 +3,7 @@
 try:
     import ujson
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 print(ujson.dumps(b'1234'))

tests/extmod/ujson_dumps_float.py

@@ -4,8 +4,7 @@ except ImportError:
     try:
         import json
     except ImportError:
-        import sys
         print("SKIP")
-        sys.exit()
+        raise SystemExit
 
 print(json.dumps(1.2))

tests/extmod/ujson_load.py

@@ -6,9 +6,8 @@ except:
         from io import StringIO
         import json
     except ImportError:
-        import sys
         print("SKIP")
-        sys.exit()
+        raise SystemExit
 
 print(json.load(StringIO('null')))
 print(json.load(StringIO('"abc\\u0064e"')))

tests/extmod/ujson_loads.py

@@ -4,9 +4,8 @@ except ImportError:
     try:
         import json
     except ImportError:
-        import sys
         print("SKIP")
-        sys.exit()
+        raise SystemExit
 
 def my_print(o):
     if isinstance(o, dict):

tests/extmod/ujson_loads_float.py

@@ -4,9 +4,8 @@ except ImportError:
     try:
         import json
     except ImportError:
-        import sys
         print("SKIP")
-        sys.exit()
+        raise SystemExit
 
 def my_print(o):
     print('%.3f' % o)

tests/extmod/urandom_basic.py

@@ -4,9 +4,8 @@ except ImportError:
     try:
         import random
     except ImportError:
-        import sys
         print("SKIP")
-        sys.exit()
+        raise SystemExit
 
 # check getrandbits returns a value within the bit range
 for b in (1, 2, 3, 4, 16, 32):

tests/extmod/urandom_extra.py

@@ -4,16 +4,14 @@ except ImportError:
     try:
         import random
     except ImportError:
-        import sys
         print("SKIP")
-        sys.exit()
+        raise SystemExit
 
 try:
     random.randint
 except AttributeError:
-    import sys
     print('SKIP')
-    sys.exit()
+    raise SystemExit
 
 print('randrange')
 for i in range(50):

tests/extmod/ure1.py

@@ -4,9 +4,8 @@ except ImportError:
     try:
         import re
     except ImportError:
-        import sys
         print("SKIP")
-        sys.exit()
+        raise SystemExit
 
 r = re.compile(".+")
 m = r.match("abc")

tests/extmod/ure_debug.py

@@ -2,8 +2,7 @@
 try:
     import ure
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 ure.compile('^a|b[0-9]\w$', ure.DEBUG)

tests/extmod/ure_error.py

@@ -6,9 +6,8 @@ except ImportError:
     try:
         import re
     except ImportError:
-        import sys
         print("SKIP")
-        sys.exit()
+        raise SystemExit
 
 def test_re(r):
     try:

tests/extmod/ure_group.py

@@ -6,9 +6,8 @@ except ImportError:
     try:
         import re
     except ImportError:
-        import sys
         print("SKIP")
-        sys.exit()
+        raise SystemExit
 
 def print_groups(match):
     print('----')

tests/extmod/ure_namedclass.py

@@ -6,9 +6,8 @@ except ImportError:
     try:
         import re
     except ImportError:
-        import sys
         print("SKIP")
-        sys.exit()
+        raise SystemExit
 
 def print_groups(match):
     print('----')

tests/extmod/ure_split.py

@@ -4,9 +4,8 @@ except ImportError:
     try:
         import re
     except ImportError:
-        import sys
         print("SKIP")
-        sys.exit()
+        raise SystemExit
 
 r = re.compile(" ")
 s = r.split("a b c foobar")

tests/extmod/ure_split_empty.py

@@ -7,9 +7,8 @@
 try:
     import ure as re
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 r = re.compile(" *")
 s = r.split("a b    c   foobar")

tests/extmod/ure_split_notimpl.py

@@ -1,9 +1,8 @@
 try:
     import ure as re
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 r = re.compile('( )')
 try:

tests/extmod/ussl_basic.py

@@ -5,8 +5,7 @@ try:
     import ussl as ssl
 except ImportError:
     print("SKIP")
-    import sys
-    sys.exit()
+    raise SystemExit
 
 # create in client mode
 try:

tests/extmod/utimeq1.py

@@ -5,8 +5,7 @@ try:
     from utimeq import utimeq
 except ImportError:
     print("SKIP")
-    import sys
-    sys.exit()
+    raise SystemExit
 
 DEBUG = 0
 

tests/extmod/utimeq_stable.py

@@ -2,8 +2,7 @@ try:
     from utimeq import utimeq
 except ImportError:
     print("SKIP")
-    import sys
-    sys.exit()
+    raise SystemExit
 
 h = utimeq(10)
 

tests/extmod/uzlib_decompio.py

@@ -2,9 +2,8 @@ try:
     import uzlib as zlib
     import uio as io
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 
 # Raw DEFLATE bitstream

tests/extmod/uzlib_decompio_gz.py

@@ -2,9 +2,8 @@ try:
     import uzlib as zlib
     import uio as io
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 
 # gzip bitstream

tests/extmod/uzlib_decompress.py

@@ -4,9 +4,8 @@ except ImportError:
     try:
         import uzlib as zlib
     except ImportError:
-        import sys
         print("SKIP")
-        sys.exit()
+        raise SystemExit
 
 PATTERNS = [
     # Packed results produced by CPy's zlib.compress()

tests/extmod/vfs_basic.py

@@ -9,8 +9,7 @@ try:
     uos.mount
 except (ImportError, AttributeError):
     print("SKIP")
-    import sys
-    sys.exit()
+    raise SystemExit
 
 
 class Filesystem:

tests/extmod/vfs_fat_fileio1.py

@@ -1,4 +1,3 @@
-import sys
 try:
     import uerrno
     try:
@@ -8,13 +7,13 @@ try:
         import uos
 except ImportError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 try:
     uos.VfsFat
 except AttributeError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 
 class RAMFS:
@@ -46,7 +45,7 @@ try:
     bdev = RAMFS(50)
 except MemoryError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 uos.VfsFat.mkfs(bdev)
 vfs = uos.VfsFat(bdev)

tests/extmod/vfs_fat_fileio2.py

@@ -1,4 +1,3 @@
-import sys
 try:
     import uerrno
     try:
@@ -8,13 +7,13 @@ try:
         import uos
 except ImportError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 try:
     uos.VfsFat
 except AttributeError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 
 class RAMFS:
@@ -46,7 +45,7 @@ try:
     bdev = RAMFS(50)
 except MemoryError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 uos.VfsFat.mkfs(bdev)
 vfs = uos.VfsFat(bdev)

tests/extmod/vfs_fat_more.py

@@ -1,4 +1,3 @@
-import sys
 import uerrno
 try:
     try:
@@ -8,13 +7,13 @@ try:
         import uos
 except ImportError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 try:
     uos.VfsFat
 except AttributeError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 
 class RAMFS:
@@ -47,7 +46,7 @@ try:
     bdev2 = RAMFS(50)
 except MemoryError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 # first we umount any existing mount points the target may have
 try:

tests/extmod/vfs_fat_oldproto.py

@@ -1,4 +1,3 @@
-import sys
 try:
     import uerrno
     try:
@@ -7,13 +6,13 @@ try:
         import uos
 except ImportError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 try:
     uos.VfsFat
 except AttributeError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 class RAMFS_OLD:
 
@@ -43,7 +42,7 @@ try:
     bdev = RAMFS_OLD(50)
 except MemoryError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 uos.VfsFat.mkfs(bdev)
 vfs = uos.VfsFat(bdev)

tests/extmod/vfs_fat_ramdisk.py

@@ -1,4 +1,3 @@
-import sys
 try:
     import uerrno
     try:
@@ -7,13 +6,13 @@ try:
         import uos
 except ImportError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 try:
     uos.VfsFat
 except AttributeError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 
 class RAMFS:
@@ -45,7 +44,7 @@ try:
     bdev = RAMFS(50)
 except MemoryError:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 uos.VfsFat.mkfs(bdev)
 

tests/extmod/websocket_basic.py

@@ -3,9 +3,8 @@ try:
     import uerrno
     import websocket
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 # put raw data in the stream and do a websocket read
 def ws_read(msg, sz):

tests/io/buffered_writer.py

@@ -4,9 +4,8 @@ try:
     io.BytesIO
     io.BufferedWriter
 except AttributeError:
-    import sys
     print('SKIP')
-    sys.exit()
+    raise SystemExit
 
 bts = io.BytesIO()
 buf = io.BufferedWriter(bts, 8)

tests/io/open_append.py

@@ -1,4 +1,3 @@
-import sys
 try:
     import uos as os
 except ImportError:
@@ -6,7 +5,7 @@ except ImportError:
 
 if not hasattr(os, "unlink"):
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 # cleanup in case testfile exists
 try:

tests/io/open_plus.py

@@ -1,4 +1,3 @@
-import sys
 try:
     import uos as os
 except ImportError:
@@ -6,7 +5,7 @@ except ImportError:
 
 if not hasattr(os, "unlink"):
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 # cleanup in case testfile exists
 try:

tests/io/resource_stream.py

@@ -5,7 +5,7 @@ try:
     uio.resource_stream
 except AttributeError:
     print('SKIP')
-    sys.exit()
+    raise SystemExit
 
 buf = uio.resource_stream("data", "file2")
 print(buf.read())

tests/io/write_ext.py

@@ -5,9 +5,8 @@ import uio
 try:
     uio.BytesIO
 except AttributeError:
-    import sys
     print('SKIP')
-    sys.exit()
+    raise SystemExit
 
 buf = uio.BytesIO()
 

tests/jni/list.py

@@ -1,10 +1,9 @@
-import sys
 import jni
 try:
     ArrayList = jni.cls("java/util/ArrayList")
 except:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 l = ArrayList()
 print(l)

tests/jni/object.py

@@ -1,10 +1,9 @@
-import sys
 import jni
 try:
     Integer = jni.cls("java/lang/Integer")
 except:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 # Create object
 i = Integer(42)

tests/jni/system_out.py

@@ -1,9 +1,8 @@
-import sys
 try:
     import jni
     System = jni.cls("java/lang/System")
 except:
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 System.out.println("Hello, Java!")

tests/micropython/heapalloc_bytesio.py

@@ -1,9 +1,8 @@
 try:
     import uio
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 import micropython
 

tests/micropython/heapalloc_iter.py

@@ -2,9 +2,8 @@
 try:
     import array
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 try:
     from micropython import heap_lock, heap_unlock

tests/micropython/heapalloc_traceback.py

@@ -5,9 +5,8 @@ import sys
 try:
     import uio
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 # preallocate exception instance with some room for a traceback
 global_exc = StopIteration()

tests/micropython/heapalloc_traceback.py.exp

@@ -1,5 +1,5 @@
 StopIteration
 Traceback (most recent call last):
-  File  , line 23, in test
+  File  , line 22, in test
 StopIteration: 
 

tests/micropython/kbd_intr.py

@@ -6,8 +6,7 @@ try:
     micropython.kbd_intr
 except AttributeError:
     print('SKIP')
-    import sys
-    sys.exit()
+    raise SystemExit
 
 # just check we can actually call it
 micropython.kbd_intr(3)

tests/micropython/schedule.py

@@ -6,8 +6,7 @@ try:
     micropython.schedule
 except AttributeError:
     print('SKIP')
-    import sys
-    sys.exit()
+    raise SystemExit
 
 # Basic test of scheduling a function.
 

tests/misc/non_compliant.py

@@ -4,9 +4,8 @@ try:
     import array
     import ustruct
 except ImportError:
-    import sys
     print("SKIP")
-    sys.exit()
+    raise SystemExit
 
 # when super can't find self
 try: