Maximo automation scripts: performance tip from software engineer.

An example: you want to collect unique asset numbers from multiassetlocci.

Common approach using list of asset numbers:

assetnums = []
for row in multiassetset:
  asset = row.getString("ASSETNUM")
if asset and asset not in assetnums:
assetnums.append(asset)

Functionally fine. Until you run it on a record with 2000 assets and would be surprised how slow it is...

It would be better and faster if you would use set and not list:

assetnums = set()
for row in multiassetset:
  asset = row.getString("ASSETNUM")
if asset:
  assetnums.add(asset)

When using set you wouldn't have duplicates and you would have constant lookup time.

Just remember:

• Use set() when you only need unique values or fast membership checks.
• Use list() when order or index access matters.

Ever noticed the difference yourself? Or do you have a script that felt just a bit too slow for no reason?

I would be happy to assist: info@annacode.nl