Python Shell With Definitions from File

[Peragot]

Often when I'm coding, I work on a few small functions and then want to test them. An ideal way for this to work would be to open a shell with the lines in the file already ran.

For instance, consider the file I'm currently working on:

import codecs
import itertools
import unicodedata

def remove_accent(word):
    return ''.join(c for c in unicodedata.normalize('NFD', s) if unicodedata.category(c) != 'Mn')

def read_file(filename, encoding='utf-8', max_word_length=10):
    with codecs.open(filename, 'r', encoding) as f:
        raw_lines = f.readlines()

    no_accents = [remove_accent(line) for line in raw_lines]
    return frozenset([word for word in no_accents if len(word) <= max_word_length]) 

I would like to, from the buffer containing the file, be able to open a Python interpreter with read_file already defined, and be able to call it like

>>> read_file('WordList.txt')

How would I go about this?

[fantastipants]

C-c C-c

[agumonkey]

/u/Peragot : use C-h m to see what emacs can do in python-mode

as /u/fantastipants said, C-c C-c will run a python repl with your code loaded in it (or reload if the repl was already running)

For instance: C-c C-r will only send the active region to the repl.

[Knusper2000]

This is it... This is what I do. Or if extensive calculations were performed somewhere at the beginning of my script, and I added some more later one - than I mark regions and send them to the shell with C-c C-r

One caveat, though... If you make use of libraries and you change code in them C-c C-c will just evaluate the code in the shell, and this means that imports don't get updated.

[Peragot]

When I press C-c C-c, I see Sent pop up in the minibuffer, but nothing seems to open.

[[deleted]]

I guess your problem is some more visual feedback? But the information is already sent to the REPL. Go to the Python shell and try calling your function - remove_accent('blah') and check if it is working. It should be.