Question

how to assign NULL (or MISSING) values inside a python caller?

  • 17 July 2017
  • 4 replies
  • 50 views
arthy
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Hi,

I would like to know how to assign an attribute value NULL using python?

 

 

I'm aware of the nullattributemapper transformer to do that but I would like to add this inside a python script.

Thanks

4 replies

jdh
Rank
Badge +22

Unfortunately the python None value is resolved as an empty string in the setAttribute method.

C
Badge

FMEFeature.setAttributeNullWithType(attrName, attrType) should be what you're looking for. For most use cases, attrType doesn't matter, so you can use something like fmeobjects.FME_ATTR_UNDEFINED.

takashi
Rank
Userlevel 2
Badge +17

FMEFeature.setAttributeNullWithType(attrName, attrType) should be what you're looking for. For most use cases, attrType doesn't matter, so you can use something like fmeobjects.FME_ATTR_UNDEFINED.

@carsonlam is right. You can use FMEFeature.setAttributeNullWithType method to set <null> to an attribute.

 

In addition, if you need to make a <missing> attribute, just remove the attribute with FMEFeature.removeAttribute(attrName) method.

 

arthy
Rank
Badge +1

thanks everyone

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