[issue41563] .python_history file causes considerable slowdown

bytecookie added the comment: > it is your responsibility to set a maximum history length. No, sorry. The problem is not the history file, is the massive slow down it causes. And if you have to utilize a process monitoring tool to find out that the history file is the cause, its not a matter

[issue41563] .python_history file causes considerable slowdown

Steven D'Aprano added the comment: > My history file is only 500 lines. *slaps forehead* Of course it is, I'm running a customer history hook that has a limit of 500 lines in the history file. It looks to me that by default the history feature is set to unlimited lines, so I guess that imp

[issue41563] .python_history file causes considerable slowdown

Steven D'Aprano added the comment: How very odd. I use the Python interactive interpreter extensively, and have done so for years. My history file is only 500 lines. Did you happen to inspect the file before deleting it to see if it contained something odd? What does this print for you?

[issue41563] .python_history file causes considerable slowdown

bytecookie added the comment: Using Python 3.8.3 on Windows 10 1803 -- ___ Python tracker ___ ___ Python-bugs-list mailing list Uns

[issue41563] .python_history file causes considerable slowdown

New submission from Denniver : The seemingly unlimited growth of the ".python_history"-file seems to cause a massive slowdown when starting or exiting python, the same after running commands. On one machine python took about 3 minutes to start and I found out that while it is seemingly doing