macos - How do you see the entire command history in interactive Python?

Question

I'm working on the default python interpreter on Mac OS X, and I Cmd+K (cleared) my earlier commands. I can go through them one by one using the arrow keys. But is there an option like the --history option in bash shell, which shows you all the commands you've entered so far?

Answer 1

Code for printing the entire history:

Python 3

One-liner (quick copy and paste):

import readline; print('
'.join([str(readline.get_history_item(i + 1)) for i in range(readline.get_current_history_length())]))

(Or longer version...)

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

Python 2

One-liner (quick copy and paste):

import readline; print '
'.join([str(readline.get_history_item(i + 1)) for i in range(readline.get_current_history_length())])

(Or longer version...)

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

Note: get_history_item() is indexed from 1 to n.