我在下面的尝试无效。没有未处理的错误或异常,但是打印到控制台的消息不是所希望的。
import inspect
class Fob:
def __init__(i, func):
f = inspect.currentframe().f_back
i._globals = f.f_globals
i._builtins = f.f_builtins
i._locals = f.f_locals
del f
i._func = func
def __call__(i, *args, **kwargs):
localz = i._locals
globalz = i._globals
d = globalz
d['i'] = i
d['args'] = args
d['kwargs'] = kwargs
r = eval("i._func(*args, **kwargs)", globalz, localz)
return r
@Fob
def foo():
"""
GLOBALS: `str`, `print`
"""
print('apples', 'do I exist?')
print(str('apples'))
#############################################
# END OF DEFINING `foo`
# BEGIN MESSING UP GLOBALS
#############################################
import sys
def print(*args, end="\n", file=sys.stdout, print=print):
print("SIKE!", type(args[0]), args[0], file=file, end=end)
import string
is_letter = lambda ch, *, str=str:\
ch in string.ascii_lowercase
str = lambda s, *, str=str, is_letter=is_letter, filter=filter:\
int(''.join(filter(is_letter, str(s).lower())), 36)
#############################################
# END MESSING UP GLOBALS. BEGIN CALLING foo()
#############################################
foo()
apples do I exist?
apples
SIKE! <class 'str'> apples
SIKE! <class 'int'> 647846308
我正在尝试恢复定义函数时存在的名称空间(全局,局部等)。