Function Names on a function call

[indiarocks]

Let's say for eg. I have one common function say 'common_func' and it can be called by any other functions. If func1, makes a call to common_func, I need to determine in common_func that this call was made by func1. If func2 makes a call to common_func, that this call was made by func2.

I need a way to figure out which function made a function call to common_func.

I don't know if I am making sense.

Thanks,
-V

[ilikepython]

Let's say for eg. I have one common function say 'common_func' and it can be called by any other functions. If func1, makes a call to common_func, I need to determine in common_func that this call was made by func1. If func2 makes a call to common_func, that this call was made by func2.

I need a way to figure out which function made a function call to common_func.

I don't know if I am making sense.

Thanks,
-V

You could have an argument in common_func that gets passed different values in func1 and func2:
[code=python]
def common_func(cal l_func):
if call_func == 1:
# called from func1
if call_func == 2:
# called from func2

def func1():
common_func(1)

def func2():
common_func(2)
[/code]
Why do you need that?

[bartonc]

Let's say for eg. I have one common function say 'common_func' and it can be called by any other functions. If func1, makes a call to common_func, I need to determine in common_func that this call was made by func1. If func2 makes a call to common_func, that this call was made by func2.

I need a way to figure out which function made a function call to common_func.

I don't know if I am making sense.

Thanks,
-V

If you want to do that without adding parameters to the function parameter list, you'll want to use the introspection provided my the inspect module:[CODE=python]import inspect

class FunctionOwner:
def __init__(self):
self.caller1 = self.func1.im_f unc.func_code
self.caller2 = self.func2.im_f unc.func_code

def __del__(self):
del self.caller1
del self.caller2

def common_func(sel f):
caller = inspect.current frame().f_back. f_code
if caller == self.caller1:
print "called by caller 1"
elif caller == self.caller2:
print "called by caller 2"

def func1(self):
self.common_fun c()

def func2(self):
self.common_fun c()[/CODE]
This also applies to module functions, but I'm a class object fan and rarely define things like this at the module level.

[bartonc]

If you want to do that without adding parameters to the function parameter list, you'll want to use the introspection provided my the inspect module:[CODE=python]import inspect

class FunctionOwner:
def __init__(self):
self.caller1 = self.func1.im_f unc.func_code
self.caller2 = self.func2.im_f unc.func_code

def __del__(self):
del self.caller1
del self.caller2

def common_func(sel f):
caller = inspect.current frame().f_back. f_code
if caller == self.caller1:
print "called by caller 1"
elif caller == self.caller2:
print "called by caller 2"

def func1(self):
self.common_fun c()

def func2(self):
self.common_fun c()[/CODE]
This also applies to module functions, but I'm a class object fan and rarely define things like this at the module level.

Well, I think it's kind of cool, even if no one else does.

[indiarocks]

Thanks for the tip. But what if I don't know the name of function that can call common_func. It could be any arbitrary function name defined by the user who calls common_func.

Thanks

If you want to do that without adding parameters to the function parameter list, you'll want to use the introspection provided my the inspect module:[CODE=python]import inspect

class FunctionOwner:
def __init__(self):
self.caller1 = self.func1.im_f unc.func_code
self.caller2 = self.func2.im_f unc.func_code

def __del__(self):
del self.caller1
del self.caller2

def common_func(sel f):
caller = inspect.current frame().f_back. f_code
if caller == self.caller1:
print "called by caller 1"
elif caller == self.caller2:
print "called by caller 2"

def func1(self):
self.common_fun c()

def func2(self):
self.common_fun c()[/CODE]
This also applies to module functions, but I'm a class object fan and rarely define things like this at the module level.

[indiarocks]

Was playing around with bartonc's tip and found out the answer.
[CODE=python]
caller = inspect.current frame().f_back. f_code
print "I was called by " , caller.co_name
[/CODE]

Thanks,
-V

[bartonc]

Was playing around with bartonc's tip and found out the answer.
[CODE=python]
caller = inspect.current frame().f_back. f_code
print "I was called by " , caller.co_name
[/CODE]

Thanks,
-V

Thanks. Sorry that I missed that part. Glad you found your way through the docs!

[MisterPete]

Is there a way to determine the calling module name as well? Ie, I want to print "called by MyModule.SubMod ule.Foo()" not just "called by Foo()"
I think I saw the file path for the module in there but I don't want to have to try to determine the submodules from the path if possible.

Cheers,
Pete

[bartonc]

Is there a way to determine the calling module name as well? Ie, I want to print "called by MyModule.SubMod ule.Foo()" not just "called by Foo()"
I think I saw the file path for the module in there but I don't want to have to try to determine the submodules from the path if possible.

Cheers,
Pete

Hi Pete. Building on the example above:[CODE=python]#.....
print inspect.getfile (caller)[/CODE]

There are others, as well. The docs are here.

Have fun!