---
title: "system.tag.exists"
description: "Checks whether or not a tag with a given path exists."
---

# system.tag.exists

> Checks whether or not a tag with a given path exists.

This function is used in **Python Scripting**.

## Description
## Client Permission Restrictions
This scripting function has no [Client Permission](../../../ignition-modules/vision/vision-project-properties/vision-project-properties.md#vision-permissions-properties) restrictions.

## Syntax
`system.tag.exists(tagPath)`

### Parameters
Type | Parameter | Description 
------- | ------- | ------
String | `tagPath` | The path of the tag to look up.

### Returns
**Boolean** - True if a Tag exists for the given path, false otherwise.

### Scope
Gateway, Vision Client, Perspective Session

## Code Examples
```python title="Example #1"
# This code would write a 1 to the Tag "Compressors/C28/ClearFault" if that Tag exists.
  
if system.tag.exists("Compressors/C28/ClearFault"):
   system.tag.write("Compressors/C28/ClearFault", 1)
```