Points from python directly to ArcMap

Question

I have a python code that is generating coordinates one by one. Is there a way to display them directly in ArcMap as they are generated? I am aware of the insert cursor but the lock on the table prevents python from writing into it.

Ok, now that I used the Python window in ArcMap new error has occured. Could it be because the "czk" is a list?

Here is the code:

czk=[413960.0, 47130.0]
cursor = arcpy.da.InsertCursor("C:/GIS/AlJeba/Tocke/Tocke.shp", ("SHAPE@XY"))
for row in czk:
    cursor.insertRow(row)
del cursor

And here is the error:

Runtime error Traceback (most recent call last): File "", line 333, in TypeError: argument must be sequence of values

Answer 1

The problem is that you are passing in Shape@XY as the argument for the field names. This expects a tuple of the feature's centroid x,y coordinates to be passed in when you use the insert cursor ( see http://resources.arcgis.com/en/help/main/10.1/index.html#//018w0000000t000000)

However, czk=[413960.0, 47130.0] is a list containing two floating point numbers. When you say:

    for row in czk:
        cursor.insertRow(row)

You are only passing a single floating point number in when it expects a tuple with two items in it (one x and one y coordinate).

If 413960.0, 47130.0 is your x,y pair then you need to change your code to something like this:

    czk=(413960.0, 47130.0)
    cursor = arcpy.da.InsertCursor("C:/GIS/AlJeba/Tocke/Tocke.shp", ("SHAPE@XY"))
    cursor.insertRow(czk)
    del cursor

Answer 2

Try this:

czk = [(413960.0, 47130.0)]
cursor = arcpy.da.InsertCursor("C:/GIS/AlJeba/Tocke/Tocke.shp", ("SHAPE@XY"))
for row in czk:
    cursor.insertRow(row)

del cursor

Answer 3

It looks like you are trying to attempt the code in the second example on this help page? Is your czk list in the same structure as the example, also note that you are using () instead of [] around you field list when you create the cursor.

I think this is just a case of you stopping and reading the help file to make sure you are writing your code carefully?