print(..., end='') is corrupting output in Python 3.13.1 REPL (PowerShell) #130766
Description
I'm experiencing a strange issue in Python 3.13.1 when using the print(..., end="") function inside the interactive REPL. The first item in my list gets corrupted or disappears.
Run the following code:
tea_variety = ["Black", "Green", "Oolong", "White"]
for tea in tea_variety:
print(tea, end="-")
Expected output:
Black-Green-Oolong-White-
Actual output (Bug):
k-Green-Oolong-White-
Additional Observations:
The first letter of the first word seems to disappear or get corrupted.
Using "".join(tea_variety) works correctly.
Running this in a .py script works correctly.
It only happens in PowerShell’s Python REPL.
Tested on Windows 11, Python 3.13.1.
System Information:
OS: Windows 11
Python Version: 3.13.1 (64-bit)
Terminal: PowerShell
Bug happens only in REPL.