文本列表选择

TextListSelelct (文本列表选择, "text list select") is about as small as a node gets: it takes a LIST of strings and an index, and returns the string at that index. That's it - no models, no state, no hidden features. (Yes, "Selelct" is the typo in the class name. The pack is a one-man Chinese project and it shows in places like this. It doesn't affect anything.)

Why you'd bother

Because somewhere in your workflow you probably have a list of strings and no clean way to pick one. Anything that produces a LIST - a batch of prompt variations, a set of names, lines read from a file - can feed TextListSelelct. Feed the i input from a counter node, a seed, or a fixed widget, and you've got prompt cycling without building a switch. In a loop it's the natural "give me entry N of the batch" node.

The inputs:

• text_list - the LIST of strings. It's marked forceInput, so it expects a wire, not a typed value.
• i - the index, INT, default 0, range 0–99999.

The single output is a STRING - the element at text_list[i].

The one footgun

Out-of-range indexes raise an IndexError, full stop. There's no wrap-around and no clamping. If your loop counter can drift past the end of the list, the workflow dies mid-run with a Python traceback. In practice: make sure whatever drives i stays inside len(text_list), or give it headroom. An empty list has nothing to select, which is the same failure one step earlier.

Installing it

Part of the ComfyUI_Lam pack. Install via ComfyUI Manager (search "ComfyUI_Lam") or clone:

cd ComfyUI/custom_nodes
git clone https://github.com/yanlang0123/ComfyUI_Lam

Restart ComfyUI. No extra models, no downloads - this node uses nothing beyond Python built-ins, so it works even if the pack's heavier dependencies fail to install (a small mercy in a pack whose requirements.txt includes tensorflow).

Troubleshooting

An IndexError is the entire failure surface here. Everything else is passthrough: in goes a list and an index, out comes a string. If the output looks wrong, check the index - that's the only knob. If you need to select multiple entries at once, this isn't the node; look for the pack's MultiTextSelelct instead.