2 ms·
Then there's for-else: In [1]: for i in []: ...: pass ...: else: ...: print 'Else!' ...: Else! In [2]: for i i
by pyre 12y ago
Then there's for-else:
In [1]: for i in []:
...: pass
...: else:
...: print 'Else!'
...:
Else!
In [2]: for i in []:
...: break
...: else:
...: print 'Else!'
...:
Else!
In [3]: for i in range(2):
...: break
...: else:
...: print 'Else!'
...:
In [4]: for i in range(2):
...: pass
...: else:
...: print 'Else!'
...:
Else!
The syntax could be interpreted as:
if len(l) == 0:
print "Else!"
else:
for i in l:
pass
The "catch cases where a `break` is triggered" case isn't common enough for this syntax feature to be encountered very often, leading to confusion when people come across it (though at least it's not a bug where a common use-case has weird behavior to new-comers).