The copy keyword is deprecated and will be removed in a future version.

[loranen]

Description

When calling pt.redraw() in pandastable, a FutureWarning (or Pandas4Warning) is triggered because the internal code uses the deprecated copy keyword in pandas methods.

In my case the table is part of tkinter GUI application.

Starting from Pandas 3.0, Copy-on-Write (CoW) is the default behavior. The copy parameter is being phased out as pandas now utilizes a lazy copy mechanism.

Environment

• Pandas version: 3.0.1
• pandastable version: 0.14.0
• Python version: 3.12.3

Error Log

Pandas4Warning: The copy keyword is deprecated and will be removed in a future version. 
Copy-on-Write is active in pandas since 3.0 which utilizes a lazy copy mechanism that 
defers copies until necessary. Use .copy() to make an eager copy if necessary.
  self.pt.redraw()

Fix

The issue is probably in line 499 in core.py:
coldata = coldata.infer_objects(copy=False).fillna('')