"Terry Reedy" <tjreedy at udel.edu> wrote in message news:4U-
> >>> XXX()
> XXX # verifies copy ok
> >>> fl=[XXX]
> >>> fl[0]()
> Traceback (most recent call last):
> File "<stdin>", line 1, in ?
> File "<stdin>", line 2, in XXX
> File "<stdin>", line 18, in whoami2
> IndexError: list index out of range
>
> I suppose you could wrap that line in try:except: and return '' in
> this case. But the user had better be prepared for a null name.
>
Oddly enough, I don't get that error, however I do not the name I'm looking
for either, so for the time being I've added an else clause to the for loop.
Now, if I don't find the name, I return None so the user can tell that the
name was not found by checking for this condition.
def whoaminow():
"returns name of called calling function"
import sys, dis
# get frame where calling function is called
frame = sys._getframe(2)
# get code and next to last instruction from frame
code = frame.f_code
lasti = frame.f_lasti-3
# redirect ouput of disassemble (stdout)
oldout = sys.stdout
sys.stdout = open('log','w')
dis.disassemble(code, lasti)
sys.stdout.close()
sys.stdout = oldout # restore stdout
# retrieve current byte code line
fd = open('log')
for line in fd.xreadlines():
if line.startswith('-->'):
break
else:
line = None
fd.close()
# isolate function name
if line:
funcname = line.split()[-1][1:-1]
else:
funcname = None
return funcname
# some testing...
def foo():
me = whoaminow()
return me
fl = [foo]
print fl[0]()
#outputs
None