"Eduardo Vieira" <eduardo.su...@gmail.com> wrote in message
news:9356b9f30906061044i4ded250fif3b387e64a117...@mail.gmail.com...
Hello, I thought I understood **kwargs until I stumbled with this
function:
def changeflexion(myword, mytag, **dicty):
global er_verbs
global ar_verbs
global ir_verbs
# global dicty
for item in dicty:
if myword in item and mytag in item[1]:
if dicty[item].endswith('ar'):
ending = item[0].replace(dicty[item][:-2], "")
try:
return dicty[item][:-2] + ar_verbs[ending]
except KeyError:
return item[0]
elif dicty[item].endswith('er'):
ending = item[0].replace(dicty[item][:-2], "")
try:
return dicty[item][:-2] + er_verbs[ending]
except KeyError:
return item[0]
elif dicty[item].endswith('ir'):
ending = item[0].replace(dicty[item][:-2], "")
try:
return dicty[item][:-2] + ir_verbs[ending]
except KeyError:
return item[0]
else:
return item[0]
but when I import the module and call:
a = conjugate.changeflexion('estaban', 'VLFin', conjugate.mydict)
I get this error:
TypeError: changeflexion() takes exactly 2 arguments (3 given)
Isn't the 3rd argument supposed to be a dictionary?
No, **dicty means the function takes zero or more keyword parameters:
def f(a,b,**k):
... print a,b,k
...
f(1,2) # no keyword parameters
1 2 {}
f(1,2,c=3) # one keyword parameter
1 2 {'c': 3}
f(1,2,{'c':3}) # a dictionary
Traceback (most recent call last):
File "<interactive input>", line 1, in <module>
TypeError: f() takes exactly 2 arguments (3 given)
But there is a syntax to pass keyword arguments as a dictionary:
f(1,2,**{'c':3})
1 2 {'c': 3}
-Mark
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