0           0 RESUME                   0

  1           2 LOAD_CONST               0 (('F', 'D', 'C', 'B', 'A'))
              4 STORE_NAME               0 (LABELS)

  4           6 LOAD_CONST               1 (<code object percent_change at 0x103061fb0, file "ledger.py", line 4>)
              8 MAKE_FUNCTION            0
             10 STORE_NAME               1 (percent_change)

 10          12 LOAD_CONST               2 (<code object grade at 0x1030ba560, file "ledger.py", line 10>)
             14 MAKE_FUNCTION            0
             16 STORE_NAME               2 (grade)

 23          18 LOAD_CONST               3 (<code object total at 0x103134110, file "ledger.py", line 23>)
             20 MAKE_FUNCTION            0
             22 STORE_NAME               3 (total)

 30          24 LOAD_CONST               4 (<code object grade_label at 0x1030d5890, file "ledger.py", line 30>)
             26 MAKE_FUNCTION            0
             28 STORE_NAME               4 (grade_label)
             30 LOAD_CONST               5 (None)
             32 RETURN_VALUE

Disassembly of <code object percent_change at 0x103061fb0, file "ledger.py", line 4>:
  4           0 RESUME                   0

  5           2 LOAD_FAST                0 (before)
              4 LOAD_CONST               1 (0)
              6 COMPARE_OP               2 (==)
             12 POP_JUMP_FORWARD_IF_FALSE     2 (to 18)

  6          14 LOAD_CONST               1 (0)
             16 RETURN_VALUE

  7     >>   18 LOAD_FAST                1 (after)
             20 LOAD_FAST                0 (before)
             22 BINARY_OP               10 (-)
             26 LOAD_CONST               2 (100)
             28 BINARY_OP                5 (*)
             32 LOAD_FAST                0 (before)
             34 BINARY_OP                2 (//)
             38 RETURN_VALUE

Disassembly of <code object grade at 0x1030ba560, file "ledger.py", line 10>:
 10           0 RESUME                   0

 11           2 LOAD_FAST                0 (score)
              4 LOAD_CONST               1 (10)
              6 BINARY_OP                2 (//)
             10 STORE_FAST               1 (bucket)

 12          12 LOAD_FAST                1 (bucket)
             14 LOAD_CONST               2 (9)
             16 COMPARE_OP               5 (>=)
             22 POP_JUMP_FORWARD_IF_FALSE     2 (to 28)

 13          24 LOAD_CONST               3 (4)
             26 RETURN_VALUE

 14     >>   28 LOAD_FAST                1 (bucket)
             30 LOAD_CONST               4 (8)
             32 COMPARE_OP               2 (==)
             38 POP_JUMP_FORWARD_IF_FALSE     2 (to 44)

 15          40 LOAD_CONST               5 (3)
             42 RETURN_VALUE

 16     >>   44 LOAD_FAST                1 (bucket)
             46 LOAD_CONST               6 (7)
             48 COMPARE_OP               2 (==)
             54 POP_JUMP_FORWARD_IF_FALSE     2 (to 60)

 17          56 LOAD_CONST               7 (2)
             58 RETURN_VALUE

 18     >>   60 LOAD_FAST                1 (bucket)
             62 LOAD_CONST               8 (6)
             64 COMPARE_OP               2 (==)
             70 POP_JUMP_FORWARD_IF_FALSE     2 (to 76)

 19          72 LOAD_CONST               9 (1)
             74 RETURN_VALUE

 20     >>   76 LOAD_CONST              10 (0)
             78 RETURN_VALUE

Disassembly of <code object total at 0x103134110, file "ledger.py", line 23>:
 23           0 RESUME                   0

 24           2 LOAD_CONST               1 (0)
              4 STORE_FAST               1 (s)

 25           6 LOAD_FAST                0 (values)
              8 GET_ITER
        >>   10 FOR_ITER                 7 (to 26)
             12 STORE_FAST               2 (v)

 26          14 LOAD_FAST                1 (s)
             16 LOAD_FAST                2 (v)
             18 BINARY_OP               13 (+=)
             22 STORE_FAST               1 (s)
             24 JUMP_BACKWARD            8 (to 10)

 27     >>   26 LOAD_FAST                1 (s)
             28 RETURN_VALUE

Disassembly of <code object grade_label at 0x1030d5890, file "ledger.py", line 30>:
 30           0 RESUME                   0

 31           2 LOAD_GLOBAL              0 (LABELS)
             14 LOAD_GLOBAL              3 (NULL + grade)
             26 LOAD_FAST                0 (score)
             28 PRECALL                  1
             32 CALL                     1
             42 BINARY_SUBSCR
             52 RETURN_VALUE