diff --git a/tests/cmdline/cmd_showbc.py b/tests/cmdline/cmd_showbc.py
new file mode 100644
index 0000000000..e86c002544
--- /dev/null
+++ b/tests/cmdline/cmd_showbc.py
@@ -0,0 +1,135 @@
+# cmdline: -v -v
+# test printing of all bytecodes
+
+def f():
+    # constants
+    a = None + False + True + ...
+    a = 0
+    a = 1000
+    a = -1000
+
+    # constructing data
+    a = 1
+    b = (1, 2)
+    c = [1, 2]
+    d = {1, 2}
+    e = {}
+    f = {1:2}
+    g = 'a'
+    h = b'a'
+
+    # unary/binary ops
+    i = 1
+    j = 2
+    k = a + b
+    l = -a
+    m = not a
+    m = a == b == c
+    m = not (a == b and b == c)
+
+    # attributes
+    n = b.c
+    b.c = n
+
+    # subscript
+    p = b[0]
+    b[0] = p
+
+    # slice
+    a = b[::]
+
+    # sequenc unpacking
+    a, b = c
+
+    # tuple swapping
+    a, b = b, a
+    a, b, c = c, b, a
+
+    # del fast
+    del a
+
+    # globals
+    global gl
+    gl = a
+    del gl
+
+    # comprehensions
+    a = (b for c in d if e)
+    a = [b for c in d if e]
+    a = {b:b for c in d if e}
+
+    # function calls
+    a()
+    a(1)
+    a(b=1)
+    a(*b)
+
+    # method calls
+    a.b()
+    a.b(1)
+    a.b(c=1)
+    a.b(*c)
+
+    # jumps
+    if a:
+        x
+    else:
+        y
+    while a:
+        b
+    while not a:
+        b
+
+    # for loop
+    for a in b:
+        c
+
+    # exceptions
+    try:
+        while a:
+            break
+    except:
+        b
+    finally:
+        c
+
+    # with
+    with a:
+        b
+
+    # closed over variables
+    x = 1
+    def closure():
+        a = x + 1
+        x = 1
+        del x
+
+    # import
+    import a
+    from a import b
+    from a import *
+
+    # raise
+    raise
+    raise 1
+
+    # return
+    return
+    return 1
+
+# functions with default args
+def f(a=1):
+    pass
+
+    def f(b=2):
+        return b + a
+
+# function which yields
+def f():
+    yield
+    yield 1
+    yield from 1
+
+# class
+class Class:
+    pass
diff --git a/tests/cmdline/cmd_showbc.py.exp b/tests/cmdline/cmd_showbc.py.exp
new file mode 100644
index 0000000000..dae26a9985
--- /dev/null
+++ b/tests/cmdline/cmd_showbc.py.exp
@@ -0,0 +1,582 @@
+File cmdline/cmd_showbc.py, code block '<module>' (descriptor: ######
+Raw bytecode (code_info_size=16, bytecode_size=74):
+ 10 82 23 83 45 63 8f 75 01 8f 07 01 70 60 00 00
+ 03 00 00 60 00 00 00 00 ######
+ 24 83 46 81 50 01 18 61 ######
+ 24 83 46 60 00 00 00 00 ######
+ 24 83 46 20 60 00 00 00 ######
+ 16 83 57 64 02 24 83 57 11 5b
+arg names:
+(N_STATE 3)
+(N_EXC_STACK 0)
+(NUM_LOCAL 0)
+  bc=-3 line=1
+  bc=0 line=4
+  bc=15 line=121
+  bc=16 line=121
+  bc=31 line=128
+  bc=32 line=128
+  bc=48 line=131
+  bc=48 line=134
+00 MAKE_FUNCTION ######
+13 STORE_NAME f
+16 LOAD_CONST_SMALL_INT 1
+17 BUILD_TUPLE 1
+19 LOAD_NULL
+20 MAKE_FUNCTION_DEFARGS ######
+29 STORE_NAME f
+32 MAKE_FUNCTION ######
+45 STORE_NAME f
+48 LOAD_BUILD_CLASS
+49 MAKE_FUNCTION ######
+61 LOAD_CONST_STRING 'Class'
+64 CALL_FUNCTION n=2 nkw=0
+66 STORE_NAME Class
+69 LOAD_CONST_NONE
+70 RETURN_VALUE
+File cmdline/cmd_showbc.py, code block 'f' (descriptor: ######
+Raw bytecode (code_info_size=80, bytecode_size=449):
+ 50 83 46 83 45 66 40 28 22 24 64 22 26 25 25 24
+ 26 24 64 22 22 25 23 24 31 6e 27 67 25 65 68 66
+ 27 6a 62 20 24 63 33 38 78 24 25 29 67 27 28 2c
+ 69 24 46 25 23 27 23 67 27 65 26 23 4e 4a 63 25
+ 67 23 6d 60 26 2f 69 22 63 22 00 00 00 00 00 00
+ 19 02 03 0e 0f 10 11 10 da 12 da 13 da c0 80 c0
+ 14 87 68 c0 14 f8 18 c0 81 c0 81 82 50 02 23 0e
+ 81 82 51 02 c1 81 82 56 02 c2 53 00 23 0f 53 01
+ 82 81 54 c3 16 83 47 c4 15 83 47 c5 81 c6 82 c7
+ b0 1b 0e da c8 b0 d3 c9 b0 d0 47 ca b0 1b 0e 30
+ 34 ef 39 05 80 b1 ef 35 02 80 33 32 ca b0 1b 0e
+ ef 39 04 80 1b 0e b1 ef d0 47 ca 1b 0e 1e 83 49
+ 00 cb bb 1b 0e 26 83 49 00 1b 0e 80 21 cc bc 1b
+ 0e 80 27 1b 0e 11 11 58 02 21 c0 b1 59 02 c0 23
+ 0e 1b 0e b0 33 c0 23 0e b1 1b 0e b0 34 33 c0 23
+ 0e c1 28 00 b0 25 83 54 2b 83 54 be bf 62 00 00
+ ######
+ 62 00 00 00 00 00 00 00 ######
+ 02 b2 42 64 01 c0 be bf 62 00 00 00 00 00 00 00
+ ######
+ 00 32 b0 81 64 01 32 b0 16 83 48 81 64 82 00 32
+ b0 1b 0e 18 65 00 32 b0 1f 83 48 66 00 32 b0 1f
+ 83 48 81 66 01 32 b0 1f 83 48 16 83 49 81 66 82
+ 00 32 b0 1f 83 48 b1 18 67 00 32 b0 37 06 80 1b
+ 10 32 35 05 80 1d 83 56 00 32 35 03 80 1b 0e 32
+ b0 36 f9 7f 35 03 80 1b 0e 32 b0 37 f9 7f 1b 0e
+ 42 43 06 00 c0 b1 32 35 f7 7f 40 1e 00 3f 0e 00
+ 35 03 80 35 04 80 b0 36 f9 7f 44 35 0b 80 32 32
+ 32 1b 0e 32 45 35 01 80 41 44 11 b1 32 41 b0 3d
+ 06 00 32 1b 0e 32 44 11 3e 41 81 23 10 1a 10 62
+ ######
+ 80 16 83 48 50 01 68 83 47 69 83 48 23 0e 32 80
+ 16 02 50 01 68 83 47 6a 5c 00 81 5c 01 11 5b 81
+ 5b
+arg names:
+(N_STATE 25)
+(N_EXC_STACK 2)
+(NUM_LOCAL 3)
+(INIT_CELL 14)
+(INIT_CELL 15)
+(INIT_CELL 16)
+  bc=-6 line=1
+  bc=0 line=4
+  bc=0 line=6
+  bc=8 line=7
+  bc=10 line=8
+  bc=14 line=9
+  bc=18 line=12
+  bc=20 line=13
+  bc=26 line=14
+  bc=31 line=15
+  bc=36 line=16
+  bc=40 line=17
+  bc=46 line=18
+  bc=50 line=19
+  bc=54 line=22
+  bc=56 line=23
+  bc=58 line=24
+  bc=63 line=25
+  bc=66 line=26
+  bc=70 line=27
+  bc=87 line=28
+  bc=101 line=31
+  bc=108 line=32
+  bc=115 line=35
+  bc=120 line=36
+  bc=125 line=39
+  bc=133 line=42
+  bc=139 line=45
+  bc=146 line=46
+  bc=156 line=49
+  bc=158 line=52
+  bc=158 line=53
+  bc=162 line=54
+  bc=165 line=57
+  bc=184 line=58
+  bc=208 line=59
+  bc=232 line=62
+  bc=236 line=63
+  bc=241 line=64
+  bc=250 line=65
+  bc=257 line=68
+  bc=264 line=69
+  bc=272 line=70
+  bc=284 line=71
+  bc=293 line=74
+  bc=297 line=75
+  bc=303 line=77
+  bc=308 line=78
+  bc=311 line=79
+  bc=318 line=80
+  bc=321 line=81
+  bc=328 line=84
+  bc=335 line=85
+  bc=340 line=88
+  bc=346 line=89
+  bc=349 line=90
+  bc=363 line=92
+  bc=373 line=94
+  bc=376 line=97
+  bc=381 line=98
+  bc=388 line=101
+  bc=391 line=102
+  bc=404 line=105
+  bc=404 line=108
+  bc=410 line=109
+  bc=425 line=110
+  bc=434 line=113
+  bc=436 line=114
+  bc=439 line=117
+  bc=441 line=118
+00 LOAD_CONST_NONE
+01 LOAD_CONST_FALSE
+02 BINARY_OP 5 __add__
+03 LOAD_CONST_TRUE
+04 BINARY_OP 5 __add__
+05 LOAD_CONST_ELLIPSIS
+06 BINARY_OP 5 __add__
+07 STORE_FAST 0
+08 LOAD_CONST_SMALL_INT 0
+09 STORE_FAST 0
+10 LOAD_CONST_SMALL_INT 1000
+13 STORE_FAST 0
+14 LOAD_CONST_SMALL_INT -1000
+17 STORE_FAST 0
+18 LOAD_CONST_SMALL_INT 1
+19 STORE_FAST 0
+20 LOAD_CONST_SMALL_INT 1
+21 LOAD_CONST_SMALL_INT 2
+22 BUILD_TUPLE 2
+24 STORE_DEREF 14
+26 LOAD_CONST_SMALL_INT 1
+27 LOAD_CONST_SMALL_INT 2
+28 BUILD_LIST 2
+30 STORE_FAST 1
+31 LOAD_CONST_SMALL_INT 1
+32 LOAD_CONST_SMALL_INT 2
+33 BUILD_SET 2
+35 STORE_FAST 2
+36 BUILD_MAP 0
+38 STORE_DEREF 15
+40 BUILD_MAP 1
+42 LOAD_CONST_SMALL_INT 2
+43 LOAD_CONST_SMALL_INT 1
+44 STORE_MAP
+45 STORE_FAST 3
+46 LOAD_CONST_STRING 'a'
+49 STORE_FAST 4
+50 LOAD_CONST_BYTES a
+53 STORE_FAST 5
+54 LOAD_CONST_SMALL_INT 1
+55 STORE_FAST 6
+56 LOAD_CONST_SMALL_INT 2
+57 STORE_FAST 7
+58 LOAD_FAST 0
+59 LOAD_DEREF 14
+61 BINARY_OP 5 __add__
+62 STORE_FAST 8
+63 LOAD_FAST 0
+64 UNARY_OP 3
+65 STORE_FAST 9
+66 LOAD_FAST 0
+67 UNARY_OP 0
+68 NOT
+69 STORE_FAST 10
+70 LOAD_FAST 0
+71 LOAD_DEREF 14
+73 DUP_TOP
+74 ROT_THREE
+75 BINARY_OP 26 __eq__
+76 JUMP_IF_FALSE_OR_POP 84
+79 LOAD_FAST 1
+80 BINARY_OP 26 __eq__
+81 JUMP 86
+84 ROT_TWO
+85 POP_TOP
+86 STORE_FAST 10
+87 LOAD_FAST 0
+88 LOAD_DEREF 14
+90 BINARY_OP 26 __eq__
+91 JUMP_IF_FALSE_OR_POP 98
+94 LOAD_DEREF 14
+96 LOAD_FAST 1
+97 BINARY_OP 26 __eq__
+98 UNARY_OP 0
+99 NOT
+100 STORE_FAST 10
+101 LOAD_DEREF 14
+103 LOAD_ATTR c (cache=0)
+107 STORE_FAST 11
+108 LOAD_FAST 11
+109 LOAD_DEREF 14
+111 STORE_ATTR c (cache=0)
+115 LOAD_DEREF 14
+117 LOAD_CONST_SMALL_INT 0
+118 LOAD_SUBSCR
+119 STORE_FAST 12
+120 LOAD_FAST 12
+121 LOAD_DEREF 14
+123 LOAD_CONST_SMALL_INT 0
+124 STORE_SUBSCR
+125 LOAD_DEREF 14
+127 LOAD_CONST_NONE
+128 LOAD_CONST_NONE
+129 BUILD_SLICE 2
+131 LOAD_SUBSCR
+132 STORE_FAST 0
+133 LOAD_FAST 1
+134 UNPACK_SEQUENCE 2
+136 STORE_FAST 0
+137 STORE_DEREF 14
+139 LOAD_DEREF 14
+141 LOAD_FAST 0
+142 ROT_TWO
+143 STORE_FAST 0
+144 STORE_DEREF 14
+146 LOAD_FAST 1
+147 LOAD_DEREF 14
+149 LOAD_FAST 0
+150 ROT_THREE
+151 ROT_TWO
+152 STORE_FAST 0
+153 STORE_DEREF 14
+155 STORE_FAST 1
+156 DELETE_FAST 0
+158 LOAD_FAST 0
+159 STORE_GLOBAL gl
+162 LOAD_CONST_SMALL_INT -85
+163 LOAD_CONST_SMALL_INT 3
+164 STORE_MAP
+165 LOAD_FAST 14
+166 LOAD_FAST 15
+167 MAKE_CLOSURE ######
+179 LOAD_FAST 2
+180 GET_ITER
+181 CALL_FUNCTION n=1 nkw=0
+183 STORE_FAST 0
+184 LOAD_FAST 14
+185 LOAD_FAST 15
+186 MAKE_CLOSURE ######
+203 LOAD_FAST 2
+204 GET_ITER
+205 CALL_FUNCTION n=1 nkw=0
+207 STORE_FAST 0
+208 LOAD_FAST 14
+209 LOAD_FAST 15
+210 MAKE_CLOSURE ######
+227 LOAD_FAST 2
+228 GET_ITER
+229 CALL_FUNCTION n=1 nkw=0
+231 STORE_FAST 0
+232 LOAD_FAST 0
+233 CALL_FUNCTION n=0 nkw=0
+235 POP_TOP
+236 LOAD_FAST 0
+237 LOAD_CONST_SMALL_INT 1
+238 CALL_FUNCTION n=1 nkw=0
+240 POP_TOP
+241 LOAD_FAST 0
+242 LOAD_CONST_STRING 'b'
+245 LOAD_CONST_SMALL_INT 1
+246 CALL_FUNCTION n=0 nkw=1
+249 POP_TOP
+250 LOAD_FAST 0
+251 LOAD_DEREF 14
+253 LOAD_NULL
+254 CALL_FUNCTION_VAR_KW n=0 nkw=0
+256 POP_TOP
+257 LOAD_FAST 0
+258 LOAD_METHOD b
+261 CALL_METHOD n=0 nkw=0
+263 POP_TOP
+264 LOAD_FAST 0
+265 LOAD_METHOD b
+268 LOAD_CONST_SMALL_INT 1
+269 CALL_METHOD n=1 nkw=0
+271 POP_TOP
+272 LOAD_FAST 0
+273 LOAD_METHOD b
+276 LOAD_CONST_STRING 'c'
+279 LOAD_CONST_SMALL_INT 1
+280 CALL_METHOD n=0 nkw=1
+283 POP_TOP
+284 LOAD_FAST 0
+285 LOAD_METHOD b
+288 LOAD_FAST 1
+289 LOAD_NULL
+290 CALL_METHOD_VAR_KW n=0 nkw=0
+292 POP_TOP
+293 LOAD_FAST 0
+294 POP_JUMP_IF_FALSE 303
+297 LOAD_DEREF 16
+299 POP_TOP
+300 JUMP 308
+303 LOAD_GLOBAL y (cache=0)
+307 POP_TOP
+308 JUMP 314
+311 LOAD_DEREF 14
+313 POP_TOP
+314 LOAD_FAST 0
+315 POP_JUMP_IF_TRUE 311
+318 JUMP 324
+321 LOAD_DEREF 14
+323 POP_TOP
+324 LOAD_FAST 0
+325 POP_JUMP_IF_FALSE 321
+328 LOAD_DEREF 14
+330 GET_ITER
+331 FOR_ITER 340
+334 STORE_FAST 0
+335 LOAD_FAST 1
+336 POP_TOP
+337 JUMP 331
+340 SETUP_FINALLY 373
+343 SETUP_EXCEPT 360
+346 JUMP 352
+349 JUMP 356
+352 LOAD_FAST 0
+353 POP_JUMP_IF_TRUE 349
+356 POP_BLOCK
+357 JUMP 371
+360 POP_TOP
+361 POP_TOP
+362 POP_TOP
+363 LOAD_DEREF 14
+365 POP_TOP
+366 POP_EXCEPT
+367 JUMP 371
+370 END_FINALLY
+371 POP_BLOCK
+372 LOAD_CONST_NONE
+373 LOAD_FAST 1
+374 POP_TOP
+375 END_FINALLY
+376 LOAD_FAST 0
+377 SETUP_WITH 386
+380 POP_TOP
+381 LOAD_DEREF 14
+383 POP_TOP
+384 POP_BLOCK
+385 LOAD_CONST_NONE
+386 WITH_CLEANUP
+387 END_FINALLY
+388 LOAD_CONST_SMALL_INT 1
+389 STORE_DEREF 16
+391 LOAD_FAST_N 16
+393 MAKE_CLOSURE ######
+403 STORE_FAST 13
+404 LOAD_CONST_SMALL_INT 0
+405 LOAD_CONST_NONE
+406 IMPORT_NAME 'a'
+409 STORE_FAST 0
+410 LOAD_CONST_SMALL_INT 0
+411 LOAD_CONST_STRING 'b'
+414 BUILD_TUPLE 1
+416 IMPORT_NAME 'a'
+419 IMPORT_FROM 'b'
+422 STORE_DEREF 14
+424 POP_TOP
+425 LOAD_CONST_SMALL_INT 0
+426 LOAD_CONST_STRING '*'
+428 BUILD_TUPLE 1
+430 IMPORT_NAME 'a'
+433 IMPORT_STAR
+434 RAISE_VARARGS 0
+436 LOAD_CONST_SMALL_INT 1
+437 RAISE_VARARGS 1
+439 LOAD_CONST_NONE
+440 RETURN_VALUE
+441 LOAD_CONST_SMALL_INT 1
+442 RETURN_VALUE
+File cmdline/cmd_showbc.py, code block 'f' (descriptor: ######
+Raw bytecode (code_info_size=16, bytecode_size=36):
+ 10 83 46 83 45 8c 79 40 00 00 00 00 00 00 00 00
+ 1e 07 00 00 00 00 00 00 05 00 01 00 82 50 01 18
+ b0 63 00 00 00 00 00 00 ######
+ 01 c1 11 5b
+arg names: a
+(N_STATE 5)
+(N_EXC_STACK 0)
+(NUM_LOCAL 1)
+(INIT_CELL 0)
+  bc=-12 line=1
+  bc=0 line=122
+  bc=0 line=124
+00 LOAD_CONST_SMALL_INT 2
+01 BUILD_TUPLE 1
+03 LOAD_NULL
+04 LOAD_FAST 0
+05 MAKE_CLOSURE_DEFARGS ######
+21 STORE_FAST 1
+22 LOAD_CONST_NONE
+23 RETURN_VALUE
+File cmdline/cmd_showbc.py, code block 'f' (descriptor: ######
+Raw bytecode (code_info_size=16, bytecode_size=16):
+ 10 83 46 83 45 83 80 23 23 00 00 00 00 00 00 00
+ 02 00 00 11 5d 32 81 5d 32 81 42 11 5e 32 11 5b
+arg names:
+(N_STATE 2)
+(N_EXC_STACK 0)
+(NUM_LOCAL 0)
+  bc=-3 line=1
+  bc=0 line=129
+  bc=3 line=130
+  bc=6 line=131
+00 LOAD_CONST_NONE
+01 YIELD_VALUE
+02 POP_TOP
+03 LOAD_CONST_SMALL_INT 1
+04 YIELD_VALUE
+05 POP_TOP
+06 LOAD_CONST_SMALL_INT 1
+07 GET_ITER
+08 LOAD_CONST_NONE
+09 YIELD_FROM
+10 POP_TOP
+11 LOAD_CONST_NONE
+12 RETURN_VALUE
+File cmdline/cmd_showbc.py, code block 'Class' (descriptor: ######
+Raw bytecode (code_info_size=8, bytecode_size=15):
+ 08 83 57 83 45 8d 86 00 01 00 00 1c 0c 00 24 0b
+ 16 83 57 24 0f 11 5b
+arg names:
+(N_STATE 1)
+(N_EXC_STACK 0)
+(NUM_LOCAL 0)
+  bc=-3 line=1
+  bc=10 line=135
+00 LOAD_NAME __name__ (cache=0)
+03 STORE_NAME __module__
+05 LOAD_CONST_STRING 'Class'
+08 STORE_NAME __qualname__
+10 LOAD_CONST_NONE
+11 RETURN_VALUE
+File cmdline/cmd_showbc.py, code block '<genexpr>' (descriptor: ######
+Raw bytecode (code_info_size=8, bytecode_size=46):
+ 08 82 28 83 45 00 00 00 06 00 00 00 00 00 00 00
+ 26 07 00 00 00 00 00 00 ca 03 00 00 00 00 00 00
+ 06 00 00 b2 43 0d 00 c3 1b 01 37 f7 7f 1b 00 5d
+ 32 35 f0 7f 11 5b
+arg names:  c e
+(N_STATE 6)
+(N_EXC_STACK 0)
+(NUM_LOCAL 0)
+  bc=-27 line=1
+00 LOAD_FAST 2
+01 FOR_ITER 17
+04 STORE_FAST 3
+05 LOAD_DEREF 1
+07 POP_JUMP_IF_FALSE 1
+10 LOAD_DEREF 0
+12 YIELD_VALUE
+13 POP_TOP
+14 JUMP 1
+17 LOAD_CONST_NONE
+18 RETURN_VALUE
+File cmdline/cmd_showbc.py, code block '<listcomp>' (descriptor: ######
+Raw bytecode (code_info_size=8, bytecode_size=47):
+ 08 82 25 83 45 00 00 00 06 00 00 00 00 00 00 00
+ 26 07 00 00 00 00 00 00 ca 03 00 00 00 00 00 00
+ 07 00 00 51 00 b2 43 0d 00 c3 1b 01 37 f7 7f 1b
+ 00 52 02 35 f0 7f 5b
+arg names:  c e
+(N_STATE 7)
+(N_EXC_STACK 0)
+(NUM_LOCAL 0)
+  bc=-27 line=1
+00 BUILD_LIST 0
+02 LOAD_FAST 2
+03 FOR_ITER 19
+06 STORE_FAST 3
+07 LOAD_DEREF 1
+09 POP_JUMP_IF_FALSE 3
+12 LOAD_DEREF 0
+14 LIST_APPEND 2
+16 JUMP 3
+19 RETURN_VALUE
+File cmdline/cmd_showbc.py, code block '<dictcomp>' (descriptor: ######
+Raw bytecode (code_info_size=16, bytecode_size=49):
+ 10 82 26 83 45 8f 3a 18 00 00 00 00 00 00 00 00
+ 06 00 00 00 00 00 00 00 26 07 00 00 00 00 00 00
+ ca 03 00 00 00 00 00 00 08 00 00 53 00 b2 43 0f
+ 00 c3 1b 01 37 f7 7f 1b 00 1b 00 55 02 35 ee 7f
+ 5b
+arg names:  c e
+(N_STATE 8)
+(N_EXC_STACK 0)
+(NUM_LOCAL 0)
+  bc=-27 line=1
+  bc=-12 line=59
+  bc=12 line=59
+00 BUILD_MAP 0
+02 LOAD_FAST 2
+03 FOR_ITER 21
+06 STORE_FAST 3
+07 LOAD_DEREF 1
+09 POP_JUMP_IF_FALSE 3
+12 LOAD_DEREF 0
+14 LOAD_DEREF 0
+16 MAP_ADD 2
+18 JUMP 3
+21 RETURN_VALUE
+File cmdline/cmd_showbc.py, code block 'closure' (descriptor: ######
+Raw bytecode (code_info_size=16, bytecode_size=23):
+ 10 81 5d 83 45 8b 66 25 23 00 00 00 00 00 00 00
+ 56 07 00 00 00 00 00 00 04 00 00 1b 00 81 da c1
+ 81 23 00 29 00 11 5b
+arg names: x
+(N_STATE 4)
+(N_EXC_STACK 0)
+(NUM_LOCAL 0)
+  bc=-11 line=1
+  bc=0 line=103
+  bc=5 line=104
+  bc=8 line=105
+00 LOAD_DEREF 0
+02 LOAD_CONST_SMALL_INT 1
+03 BINARY_OP 5 __add__
+04 STORE_FAST 1
+05 LOAD_CONST_SMALL_INT 1
+06 STORE_DEREF 0
+08 DELETE_DEREF 0
+10 LOAD_CONST_NONE
+11 RETURN_VALUE
+File cmdline/cmd_showbc.py, code block 'f' (descriptor: ######
+Raw bytecode (code_info_size=16, bytecode_size=24):
+ 10 83 46 83 45 8f 7c 04 00 00 00 00 00 00 00 00
+ 22 07 00 00 00 00 00 00 1e 07 00 00 00 00 00 00
+ 04 00 00 b1 1b 00 da 5b
+arg names: b a
+(N_STATE 4)
+(N_EXC_STACK 0)
+(NUM_LOCAL 0)
+  bc=-19 line=1
+  bc=-4 line=125
+  bc=0 line=125
+00 LOAD_FAST 1
+01 LOAD_DEREF 0
+03 BINARY_OP 5 __add__
+04 RETURN_VALUE
+mem: total=11585, current=2341, peak=9293
+stack: 16 out of 32768
+GC: total: 259072, used: 3168, free: 255904
+ No. of 1-blocks: 42, 2-blocks: 8, max blk sz: 17