On 5/9/2011 4:25 PM, Claudiu Popa wrote:
I already told in the first post that I've implemented __str__ function,
> but it doesn't seems to be automatically called.
No, Python does not auto-coerce to strings (only between numbers).
You have to be explicit by calling str. Karim's statement "You just have
to implement __str__() python special method for your "custom_objects".
" means that str will then work.
For instance, the following example won't work:
class a:
def __init__(self, i):
self.i = i
def __str__(self):
return "magic_function_{}".format(self.i)
t = a(0)
str(t)
'magic_function_0'
"".join([t])
print('\n'.join(str(ob) for ob in [a(0), a(1), a(None)]))
magic_function_0
magic_function_1
magic_function_None
--
Terry Jan Reedy
--
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