topic How to specify location in string? in ArcGIS Pro Questions

How to specify location in string?

Davec43 — Thu, 03 Aug 2023 12:40:59 GMT

I'm back to trying to remove "T" from layer names in the Drawing Order.

I have 3 layers:

T123T 12T3 T123

This will remove all the T's:

layers = act_map.listLayers() for lyr in layers: if "T" in lyr.name: lyr.name = lyr.name.replace("T", "")

How do I specify the first position in the string? so I'm left with:

123T 12T3 123

Re: How to specify location in string?

SvenR — Thu, 03 Aug 2023 14:10:35 GMT

Try this.

layer.name is a string. So you can ask for the "T" in the first letter with ==. If this is true you change the name. But you will do this only ones. For the first letter... This is why you add the 1 in ("T","",1).

layers = act_map.listLayers() for lyr in layers: if "T" == lyr.name[0]: lyr.name = lyr.name.replace("T", "", 1)

Re: How to specify location in string?

Davec43 — Thu, 03 Aug 2023 14:27:17 GMT

Awesome it worked, thanks!

Re: How to specify location in string?

shawinfra — Mon, 07 Aug 2023 06:00:38 GMT

You can directly index into a String, but that doesn‘t seem to be what you want to do anyway, so your question is confusing. Iterators are just one way of splitting at whitespace. There are many short command when working with iterators, such as ”for element in iter“, collect, map, and so on https://mobdro.bio/ .

Re: How to specify location in string?

Luke_Pinner — Sun, 06 Aug 2023 12:38:24 GMT

You can also use the string.lstrip (left strip) method. This will remove the given character from the start of a string, leaving the string untouched if it doesn't start with that character.

layers = [l.lstrip("T") for l in act_map.listLayers()]