Bug
The performance of arcpy.ListFiles is slower than the core Python pathlib Listfile functions, especially over the Universal Naming Convention (UNC) network paths.
| Bug ID Number | BUG-000151714 |
|---|---|
| Submitted | August 19, 2022 |
| Last Modified | October 7, 2024 |
| Applies to | ArcGIS Pro |
| Version found | 3.0 |
| Operating System | Windows OS |
| Operating System Version | 10.0 |
| Status | Known Limit |
Additional Information
The performance continues to be a significant focus area. For this case, pathlib does direct calls to the filesystem, while arcpy.ListFiles goes through the various ArcGIS Pro data sources that support 'file' object. Pathlib is always dramatically faster and is a good option for iterating files in lieux of arcpy.ListFiles. In ArcGIS Pro 3.1 the performance of network file access (folders, files, etc.) is improved, and this issue is to be re-tested once the release is publicly available.Steps to Reproduce
Bug ID: BUG-000151714
Software:
- ArcGIS Pro
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