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I am trying to create a feature class in memory but I am not sure how to use the syntax.

My code looks like this:

FC = arcpy.CreateFeatureclass_management("", "in_memory/FC", "POLYGON", "", "DISABLED",
                                         "DISABLED", Coordinate_System, "", "0", "0", "0")

Basically I seem to have problem defining the "out_path".

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2 Answers 2

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I realized what was wrong. See the correct code here:

FC = arcpy.CreateFeatureclass_management("in_memory", "FC", "POLYGON", "", "DISABLED", "DISABLED", Coordinate_System, "", "0", "0", "0")
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  • Accept your answer with the checkbox!
    – Bera
    Commented Jun 7, 2019 at 8:30
  • Arash. That's great you got it to work! I am trying to figure out the in_memory workflow as well. I am confused in this response and logan's link to the arcpy documentation on the arguments in arcpy.CreateFeatureClass_management(). Where do I pass my file path? It seems "FC" is the desired feature layer name, but where am I passing for instance fp = 'path/to/feature_class'?
    – NW_Photo_Laureate
    Commented Jun 9, 2020 at 14:38
  • The first parameter is the output location. If you're not using a memory workspace, your path would replace "in_memory" in the above code.
    – BlueTalon
    Commented Dec 2, 2021 at 1:32
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According to the document working with in memory workspace in arcmap office site. the code below should work, tested in arcmap 10.3:

memory_fc = arcpy.CreateFeatureclass_management("in_memory", "feat", "Polygon")
memory_fc_path = memory_fc[0] # this is the path of the featureclass created .
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