Andre Roberge <[email protected]> added the comment:
In the second case, I understand very well that it could have been a set
literal. In my (limited) experience, I have never seen a set literal containing
a single element obtained from an == comparison.
Since dict can be built by using keyword arguments, I tend to assume that using
= in an literal that starts with { is meant to be a dict.
In
>>> ages = {'Alice' = 22}
replacing the equal sign by either ==, :, or a comma would generate no
SyntaxError. Clearly (in my mind anyway, and in previous Python versions), the
"bad token" is the equal sign, and not the string Alice.
Here's what I show with friendly:
======
>>> ages = {'Alice'=22}
Traceback (most recent call last):
File "<friendly-console:1>", line 1
ages = {'Alice'=22}
^
SyntaxError: invalid syntax
>>> why()
It is possible that you used an equal sign = instead of a colon : to assign
values to keys in a dict before or at the
position indicated by ^.
=====
Admitedly, this suggestion could also be wrong - but the focus on this case
(imo) should be on the "bad token" shown, which should be the equal sign.
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<https://bugs.python.org/issue44180>
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