On 2018-05-14 20:24, Lele Gaifax wrote:
Ken Kundert <then...@nurdletech.com> writes:
Lele,
I'm afraid I was unclear. The ... in the code snippet was intended
to imply that these lines were appended to the end of the original code,
where d was defined.
Ok, but then I get a different behaviour:
Python 3.6.5 (default, May 11 2018, 13:30:17)
[GCC 7.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> k=1
>>> v=2
>>> d=3
>>> print(f'Email: {d:{{k}} {{v}}}')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: Invalid format specifier
Which Python version are you using?
You need to look at the original post for the value of 'd':
class mydict(dict):
def __format__(self, template):
print('Template:', template)
return ', '.join(template.format(v, k=k, v=v) for k, v in
self.items())
d = mydict(bob='239-8402', ted='371-8567', carol='891-5810',
alice='552-2219')
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