Created
December 18, 2016 20:43
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import sys | |
class Debugger(object): | |
def __init__(self): | |
breakpoints = {} | |
def call_trace(self): | |
frame = sys._getframe(1) | |
print(frame.f_code.co_filename, frame.f_lineno, frame.f_locals) |
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import dis | |
from types import CodeType | |
from debug_info import Debugger | |
debugger = Debugger() | |
def foo(): | |
a = 1 | |
b = 2 | |
c = 3 | |
d = 4 | |
def trace(): | |
debugger.call_trace() | |
instruction_for_line = 4 | |
code = foo.__code__ | |
x = code.co_code[0:instruction_for_line] | |
code2 = trace.__code__ | |
new_bytes = x + code2.co_code + code.co_code[instruction_for_line:] | |
new_code = CodeType( | |
code.co_argcount, # integer | |
code.co_kwonlyargcount, # integer | |
code.co_nlocals, # integer | |
code.co_stacksize, # integer | |
code.co_flags, # integer | |
new_bytes, # bytes | |
code.co_consts, # tuple | |
code.co_names + code2.co_names, # tuple | |
code.co_varnames, # tuple | |
code.co_filename, # string | |
code.co_name, # string | |
code.co_firstlineno, # integer | |
code.co_lnotab, # bytes | |
code.co_freevars, # tuple | |
code.co_cellvars # tuple | |
) | |
print("New code:") | |
dis.dis(new_code) | |
exec(new_code) |
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