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-1

$begingroup$

I am reading the book: "Obi Ike-Nwosu. Inside The Python Virtual Machine" and have reached the "Code Objects" chapter. This chapter has all code object fields printed out:

co_argcount = 1
co_cellvars = ()
co_code = b'|x00dx01x16x00dx02kx02rx1e|x00dx03x16x00dx02kx02rx1ed\
x04Sx00n,|x00dx01x16x00dx02kx02r0dx05Sx00nx1a|x00dx03x16x00dx02kx02r
Bdx06Sx00nx08tx00|x00x83x01Sx00dx00Sx00'
co_consts = (None, 3, 0, 5, 'FizzBuzz', 'Fizz', 'Buzz')
co_filename = /Users/c4obi/projects/python_source/cpython/fizzbuzz.py
co_firstlineno = 6
co_flags = 67
etc...

but there is no explanation how this can be done programatically, so I wrote my own code:

# Making the code object for 'my_add' function
code_obj = compile('my_add', os.path.realpath(__file__), 'exec')

# Iterating through all instance attributes
# and calling all having the 'co_' prefix
for name in dir(code_obj):
 if name.startswith('co_'):
 co_field = getattr(code_obj, name)
 print(f'name:<20 = co_field')

Output

co_argcount = 0
co_cellvars = ()
co_code = b'ex00x01x00dx00Sx00'
co_consts = (None,)
co_filename = /home/minimax/learning_python/oop/source.py
co_firstlineno = 1
co_flags = 64
co_freevars = ()
co_kwonlyargcount = 0 
co_lnotab = b'' 
co_name = <module>
co_names = ('my_add',)
co_nlocals = 0
co_stacksize = 1 
co_varnames = ()

Question: Have I used the optimal way? How would you solve this problem?

python-3.x

share|improve this question

asked 13 mins ago

MiniMaxMiniMax

1494

$endgroup$

add a comment | 

-1

$begingroup$

I am reading the book: "Obi Ike-Nwosu. Inside The Python Virtual Machine" and have reached the "Code Objects" chapter. This chapter has all code object fields printed out:

co_argcount = 1
co_cellvars = ()
co_code = b'|x00dx01x16x00dx02kx02rx1e|x00dx03x16x00dx02kx02rx1ed\
x04Sx00n,|x00dx01x16x00dx02kx02r0dx05Sx00nx1a|x00dx03x16x00dx02kx02r
Bdx06Sx00nx08tx00|x00x83x01Sx00dx00Sx00'
co_consts = (None, 3, 0, 5, 'FizzBuzz', 'Fizz', 'Buzz')
co_filename = /Users/c4obi/projects/python_source/cpython/fizzbuzz.py
co_firstlineno = 6
co_flags = 67
etc...

but there is no explanation how this can be done programatically, so I wrote my own code:

# Making the code object for 'my_add' function
code_obj = compile('my_add', os.path.realpath(__file__), 'exec')

# Iterating through all instance attributes
# and calling all having the 'co_' prefix
for name in dir(code_obj):
 if name.startswith('co_'):
 co_field = getattr(code_obj, name)
 print(f'name:<20 = co_field')

Output

co_argcount = 0
co_cellvars = ()
co_code = b'ex00x01x00dx00Sx00'
co_consts = (None,)
co_filename = /home/minimax/learning_python/oop/source.py
co_firstlineno = 1
co_flags = 64
co_freevars = ()
co_kwonlyargcount = 0 
co_lnotab = b'' 
co_name = <module>
co_names = ('my_add',)
co_nlocals = 0
co_stacksize = 1 
co_varnames = ()

Question: Have I used the optimal way? How would you solve this problem?

python-3.x

share|improve this question

asked 13 mins ago

MiniMaxMiniMax

1494

$endgroup$

add a comment | 

$begingroup$

I am reading the book: "Obi Ike-Nwosu. Inside The Python Virtual Machine" and have reached the "Code Objects" chapter. This chapter has all code object fields printed out:

co_argcount = 1
co_cellvars = ()
co_code = b'|x00dx01x16x00dx02kx02rx1e|x00dx03x16x00dx02kx02rx1ed\
x04Sx00n,|x00dx01x16x00dx02kx02r0dx05Sx00nx1a|x00dx03x16x00dx02kx02r
Bdx06Sx00nx08tx00|x00x83x01Sx00dx00Sx00'
co_consts = (None, 3, 0, 5, 'FizzBuzz', 'Fizz', 'Buzz')
co_filename = /Users/c4obi/projects/python_source/cpython/fizzbuzz.py
co_firstlineno = 6
co_flags = 67
etc...

but there is no explanation how this can be done programatically, so I wrote my own code:

# Making the code object for 'my_add' function
code_obj = compile('my_add', os.path.realpath(__file__), 'exec')

# Iterating through all instance attributes
# and calling all having the 'co_' prefix
for name in dir(code_obj):
 if name.startswith('co_'):
 co_field = getattr(code_obj, name)
 print(f'name:<20 = co_field')

Output

co_argcount = 0
co_cellvars = ()
co_code = b'ex00x01x00dx00Sx00'
co_consts = (None,)
co_filename = /home/minimax/learning_python/oop/source.py
co_firstlineno = 1
co_flags = 64
co_freevars = ()
co_kwonlyargcount = 0 
co_lnotab = b'' 
co_name = <module>
co_names = ('my_add',)
co_nlocals = 0
co_stacksize = 1 
co_varnames = ()

Question: Have I used the optimal way? How would you solve this problem?

python-3.x

share|improve this question

asked 13 mins ago

MiniMaxMiniMax

1494

$endgroup$

co_argcount = 1
co_cellvars = ()
co_code = b'|x00dx01x16x00dx02kx02rx1e|x00dx03x16x00dx02kx02rx1ed\
x04Sx00n,|x00dx01x16x00dx02kx02r0dx05Sx00nx1a|x00dx03x16x00dx02kx02r
Bdx06Sx00nx08tx00|x00x83x01Sx00dx00Sx00'
co_consts = (None, 3, 0, 5, 'FizzBuzz', 'Fizz', 'Buzz')
co_filename = /Users/c4obi/projects/python_source/cpython/fizzbuzz.py
co_firstlineno = 6
co_flags = 67
etc...

# Making the code object for 'my_add' function
code_obj = compile('my_add', os.path.realpath(__file__), 'exec')

# Iterating through all instance attributes
# and calling all having the 'co_' prefix
for name in dir(code_obj):
 if name.startswith('co_'):
 co_field = getattr(code_obj, name)
 print(f'name:<20 = co_field')

co_argcount = 0
co_cellvars = ()
co_code = b'ex00x01x00dx00Sx00'
co_consts = (None,)
co_filename = /home/minimax/learning_python/oop/source.py
co_firstlineno = 1
co_flags = 64
co_freevars = ()
co_kwonlyargcount = 0 
co_lnotab = b'' 
co_name = <module>
co_names = ('my_add',)
co_nlocals = 0
co_stacksize = 1 
co_varnames = ()

share|improve this question

asked 13 mins ago

MiniMaxMiniMax

1494

share|improve this question

asked 13 mins ago

MiniMaxMiniMax

1494

asked 13 mins ago

MiniMaxMiniMax

1494

asked 13 mins ago

MiniMaxMiniMax

1494