使python导入更有条理？

代码工作,但看起来很乱,所以这可能是一个代码审查问题,我没有研究足够的 pythons约定知道如何构建和组织我的文件的开头更pythonic.我基本上只是粘贴在进口中,所以它们可能是重复的,不再需要或错误订购.你能告诉我如何构建我的导入的任何建议吗？或者我可以留下这样的代码来专注于我自己的功能吗？

档案1：

from __future__ import with_statement
import logging
import os
from google.appengine.api.users import is_current_user_admin,UserNotFoundError
import time
import cgi
import geo.geotypes
import main
import captcha
from google.appengine import api
from google.appengine.runtime import DeadlineExceededError
from google.appengine.ext.webapp.util import run_wsgi_app
from google.appengine.ext.blobstore import BlobInfo
from google.appengine.ext.db import djangoforms
from django import forms
from django.core.exceptions import ValidationError
from django.utils import translation
from datetime import datetime,timedelta
os.environ['DJANGO_SETTINGS_MODULE'] = 'conf.settings'
from django.conf import settings
from django.template import RequestContext
from util import I18NHandler
import util
from google.appengine.api import urlfetch,taskqueue
from django.template.defaultfilters import register
from django.utils import simplejson as json
from functools import wraps
from google.appengine.api import urlfetch,taskqueue,users,images
from google.appengine.ext import db,webapp,search,blobstore
from google.appengine.ext.webapp import util,template
from google.appengine.runtime import DeadlineExceededError
from random import randrange
import Cookie
import base64
import cgi
import conf
import datetime
import hashlib
import hmac
import logging
import time
import traceback
import urllib
import twitter_oauth_handler
from twitter_oauth_handler import OAuthClient
from geo.geomodel import GeoModel
from django.utils.translation import gettext_lazy as _
webapp.template.register_template_library('common.templatefilters')

文件2(这里有几条说明,我不明白)：

from __future__ import with_statement
                # -*- coding: utf-8 -*-
import facebookconf
import os,wsgiref.handlers
os.environ[u'DJANGO_SETTINGS_MODULE'] = u'conf'
import util
import time
import logging
import urllib
import wsgiref.handlers
import appengine_admin
import cgi
import captcha
import re
import hashlib
import string
import hmac
import twitter_oauth_handler
from twitter_oauth_handler import OAuthClient
os.environ['DJANGO_SETTINGS_MODULE'] = 'conf.settings'
from geo.geomodel import GeoModel
from google.appengine.dist import use_library
from google.appengine.ext import blobstore,db,search
# template import must be run before other Django modules imports
from google.appengine.ext.webapp import blobstore_handlers,util,template
from google.appengine.ext.blobstore import BlobInfo
from google.appengine.ext.webapp.util import run_wsgi_app
from google.appengine.api import files,images,mail,memcache,users
from django.conf import settings
# Force Django reload
settings._target = None
from util import I18NHandler,FacebookBaseHandler
from google.appengine.ext.db import djangoforms
from django.utils import translation
from django.utils import simplejson as json
from django.contrib.formtools.preview import FormPreview
from random import choice
from urllib import quote
from google.appengine.api.users import is_current_user_admin,UserNotFoundError
from google.appengine.api import urlfetch
import random
import datetime
from datetime import timedelta
from django.utils.translation import gettext_lazy as _
from django.template import defaultfilters

我如何知道移动或移除函数后何时不再使用导入？为什么我不能在一个地方为多个文件指定相同的导入,我必须在两个文件中指定相同的导入？我可以想象将处理导入移动到一个单独的文件,即imports.yaml,以指定该目录中的所有python文件的导入或同样.

from google.appengine.api import urlfetch,images

from google.appengine import api

from google.appengine import api as gaeapi