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I have only ever written a few lines and don´t really understand what I´m doing. So could any one please explain to me why this doesn´t work for "end = 0" and how could I make it work?

Thank you kindly :)

start = rs.GetInteger
end = rs.GetInteger
end = -end

objectIDs = rs.GetObjects("Pick some object")

for singleID in objectIDs:
   name = rs.ObjectName(singleID)
   name = name[start:end]
   rs.ObjectName(singleID,name)

... so if the object name is 123456789 and I input 5 and 0 I get 6789. If I input 0 and 4 I get 12345. For 2 and 3 I get 3456, etc.

edit: OK, thank's to you I think I understand why it doesn´t work and I think I fixed it thus:

start = rs.GetInteger
if start == 0: start = None
end = rs.GetInteger
end = -end
if end == 0: end = None


objectIDs = rs.GetObjects("Pick some object")

for singleID in objectIDs:
   name = rs.ObjectName(singleID)
   name = name[start:end]
   rs.ObjectName(singleID,name)
user20406817
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    Because there is only one 0, no -0, and that 0 has a clear meaning: the very first element, even in slices. – luk2302 Nov 03 '22 at 11:03

1 Answers1

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-0 is 0. So, when you have

123456789

as input and 5 as start, 0 as end, then it will be the very first. So, you sliced the first 5 characters.

With 0 and 4, -4 means that except the last 4 four characters, so you get 12345.

Lajos Arpad
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