On 10/15/2012 7:23 AM, tinn...@isbd.co.uk wrote:
I want to fix an error in some code I have installed, however I don't
really want to just bodge it.
The function producing the error is:-
def get_text(self, idx): # override !
node = self.items[idx]
a= [
", ".join(node.tags),
node.comment,
node.folderName,
cd2rd(node.date),
node.name,
'[' + self.rating_stars[node.rating] + ']'
] [self.select]
return a
The error occurs when node[] (or at least its members) turn out to be
empty,
This is not the problem.
> you get a Traceback that ends with:-
File "/usr/lib/jbrout/jbrout/listview.py", line 608, in draw_cell
layout.set_text(self.get_text(thumbnail_num))
File "/usr/lib/jbrout/jbrout.py", line 325, in get_text ", ".join(node.tags),
TypeError: sequence item 0: expected string, NoneType found
The specific problem is that node.tags is supposed to be a sequence of
strings and somehow one instead has None as the first, and probably last
item. This was likely intended to indicate an empty list, but the way to
do that is to have a empty list, which would have worked just fine. In
other words, the likely problem is that node.tags is *not* an empty
sequence when it should be.
>>> ','.join([None])
Traceback (most recent call last):
File "<pyshell#9>", line 1, in <module>
','.join([None])
TypeError: sequence item 0: expected str instance, NoneType found
>>> ','.join([])
''
--
Terry Jan Reedy
--
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