I want to define some function in python script dynamicly and call
them later, but I get some problem. I have tried the following:
##################################
# code
##################################
class test:
def __init__(self):
exec("def dfunc(msg):\n\tprint msg\nprint 'exec def function'")
dfunc('Msg in init ...') # it work
def show(self, msg):
dfunc(msg) # doesn't work !
exec('dfunc(msg)') # doesn't work too!
d = test()
d.show('hello')
###################################
#output
##################################
exec def function
Msg in init ...
Traceback (most recent call last):
File "test.py", line 10, in ?
d.show('hello')
File "test.py", line 7, in show
dfunc(msg)
NameError: global name 'dfunc' is not defined
##################################
I think this maybe cause by the scope of function definition, for the
first call of 'dfunc' in __init__ work. So I tried to define the
function as a member function of class 'test', but this time even the
first call doesn't work:
##################################
# code
##################################
class test:
def __init__(self):
exec("def dfunc(self,msg):\n\tprint msg\nprint 'exec def function'")
self.dfunc('Msg in init ...')
def show(self, msg):
exec("self.dfunc(msg)")
d = test()
d.show('hello')
###################################
#output
##################################
exec def function
Traceback (most recent call last):
File "test.py", line 9, in ?
d = test()
File "test.py", line 4, in __init__
self.dfunc('Msg in init ...')
AttributeError: test instance has no attribute 'dfunc'
##################################
Is there any way I can solve this problem?
Regards
- FAN
--
http://mail.python.org/mailman/listinfo/python-list
