Как импортировать модуль из каталога на уровне выше текущего сценария
Простое и элегантное решение (оно обнаруживает изменения элементов формы в режиме реального времени):
var formChanged = false;
$('#my-div form').on('keyup change paste', 'input, select, textarea', function(){
formChanged = true;
});
4 ответа
The __init__.py file of the GChartWrapper package expects the GChartWrapper package on PYTHONPATH. You can tell by the first line:
from GChartWrapper.GChart import *
Is it necessary to have the GChartWrapper included package in your package directory structure?
If so, then one thing you could do is adding the path where the package resides to sys.path at run time. I take it myview.py is in the myapp\view directory? Then you could do this before importing GChartWrapper:
import sys
import os
sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), '..', 'utils')))
If it is not necessary to have it in your directory structure, it could be easier to have it installed at the conventional location. You can do that by running the setup.py script that's included in the GChartWrapper source distribution.
Вы можете изменить путь, по которому python ищет файлы.
В верхней части исходного кода файл, добавьте:
import sys
sys.path.append("..")
Или, в качестве альтернативы, измените переменную среды:
export PYTHONPATH=..
You don't import modules and packages from arbritary paths. Instead, in python you use packages and absolute imports. That'll avoid all future problems.
Example:
create the following files:
MyApp\myapp\__init__.py
MyApp\myapp\utils\__init__.py
MyApp\myapp\utils\charts.py
MyApp\myapp\model\__init__.py
MyApp\myapp\view\__init__.py
MyApp\myapp\controller\__init__.py
MyApp\run.py
MyApp\setup.py
MyApp\README
The files should be empty except for those:
MyApp\myapp\utils\charts.py:
class GChartWrapper(object):
def __init__(self):
print "DEBUG: An instance of GChartWrapper is being created!"
MyApp\myapp\view\__init__.py:
from myapp.utils.charts import GChartWrapper
def start():
c = GChartWrapper() # creating instance of the class
MyApp\run.py:
from myapp.view import start
start()
That's all! When you run your entry point (run.py) it calls a function on the view, and that creates an instance of the GChartWrapper class. Using this structure you can import anything anywhere and use it.
To complement, in MyApp\setup.py you write an installation program for the MyApp\myapp package. Use distutils to write it:
from distutils.core import setup
setup(name='MyApp',
version='1.0',
description='My Beautiful Application',
author='Martin',
author_email='martin@xxxxxxx.com',
url='http://stackoverflow.com/questions/1003843/',
packages=['myapp'],
scripts=['run.py']
)
That is enough. Now when people download the MyApp folder, they can just install it using setup.py and run it using run.py. Distutils can generate packages in a number of formats including windows installable .EXE
It's the standard way of distributing python packages/applications.
Or starting in python 2.5 (again assuming myview is in myapp\view:
from __future__ import absolute_import
from ..utils.GChartWrapper import *
See: http://docs.python.org/whatsnew/2.5.html#pep-328-absolute-and-relative-imports