ext_open/opener.py

import subprocess
from binaryornot.check import is_binary
import os
import re
EDITOR_PATH = os.path.expandvars(r'%programfiles%\Notepad++\notepad++.exe')
EXT = re.compile(r'\.\w+$')
def get_ext(file):
    match = EXT.search(file)
    if match:
        return match.group(0)

handlers = {
    '.py' : {
        'editor': EDITOR_PATH,
        'execute': 'python',
        'idle_edit': 'pythonw -m idlelib -e',
        'windowless': 'pythonw'
    }
}

def edit(path,params=[]):
    call_chain = [EDITOR_PATH] + params
    if not is_binary(path):
        call_chain.append(path)
        subprocess.call(call_chain)

def standalone(path,params=[],windowless =False,cwd = None):

    path2windowless = os.path.join(os.path.dirname(__file__),'windowless.vbs')
    params = list(map(os.path.expandvars,params))
    if not cwd:
        cwd = os.path.dirname(path)
    else:
        cwd = os.path.expandvars(cwd)
    if windowless:
        cmd = ' '.join('~{}~'.format(arg) if ' ' in arg else arg for arg in [fullpath]+params)
        print(cmd)
        subprocess.check_output(['cscript.exe',path2windowless,cmd,cwd])
    else:

        subprocess.Popen([fullpath]+params,cwd=cwd)
        
def dependant(path,params=[],mode = 'execute'):
    ext = get_ext(path)
    if ext:
        handler = handlers[ext][mode]
    if ' ' in handler:
        handler = handler.split(' ')
    else:
        handler = [handler]
    args = handler+[path]+params
    subprocess.Popen(args)