Where is the Python interpreter startup script for putting a history function?

Question

I want to add a function like this:

def history():
  import readline
  for i in range(readline.get_current_history_length()):
    print (readline.get_history_item(i + 1))

so that whenever I'm in a Python shell (like running python3) or if I hit a breakpoint using ipdb in Python code, that I can just call history().

Where do I add this code? (MacOS)

Does this answer your question? [how do you see the entire command history in interactive python?](https://stackoverflow.com/questions/6558765/how-do-you-see-the-entire-command-history-in-interactive-python) — agtoever, Dec 31 '19 at 07:57
I have the function already, but I'm trying to figure out where I can add this code so that I don't have to write the function everytime — Michael, Dec 31 '19 at 18:21

score 0 · Answer 1 · answered Dec 31 '19 at 07:39

0

You might be able to achive that using the PYTHONSTARTUP env var.
Create a script that contains this code, and export the variable to your shell's profile

https://docs.python.org/3/using/cmdline.html#envvar-PYTHONSTARTUP

answered Dec 31 '19 at 07:39

Ron Serruya

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I'm not sure what's the issue, but when I run `cat $PYTHONSTARTUP`, the command just hangs without printing anything – Michael Dec 31 '19 at 18:22
@Michael you mean echo $PYTHONSTARTUP? – Ron Serruya Jan 01 '20 at 10:31
echo doesn't print anything – Michael Jan 06 '20 at 23:17
That means that its empty, create a python file with the code you want, and then add `export PYTHONSTARTUP='path_to_your_file'` to your shell config – Ron Serruya Jan 07 '20 at 08:59

Where is the Python interpreter startup script for putting a history function?

1 Answers1