an atom command to remove common python debug statements. open your atom config folder. possibly rename init.cson to init.js and place this your file.

init.js

atom.commands.add('atom-text-editor', 'custom:remove-debug', () => {
    const editor = atom.workspace.getActiveTextEditor();
    const range = editor.getBuffer().getRange();
    const checkpoint = editor.createCheckpoint();
    const regex = new RegExp(/\s*from nose.tools import set_trace\s*set_trace\(\)$|\s*import pdb;?\s*pdb.set_trace\(\)$/, 'gmi');

    editor.backwardsScanInBufferRange(regex, range, (iterator) => {
        iterator.replace('');
    });

    editor.groupChangesSinceCheckpoint(checkpoint);
});