无法让python导入其他文件夹中的nba_py

Question

I am using Python2.7 and Google App Engine for this project. I am a huge NBA fan and I want to use nba_py api to retrieve additional information to be display on my website but can't seem to import it correctly. I am trying to import it inside my blogfront.py but when I refresh the browser I get an error. Here's my directory structure.

multi-user-blog
      - libraries
            - nba_py
                 -nba_py
                     - __init__.py
      - handlers
           -blogfront.py
           - __init__.py
      - mainblog.py

Here's my blogfront.py

from bloghandler import BlogHandler
from models.post import Post

from libraries.nba_py import nba_py


# Render Home Page
class BlogFront(BlogHandler):
    def get(self):
        # type: () -> object
        posts = Post.all().order('-created')
        title = "Blog/Scores"
        standing = get_standing()
        self.render('front.html', posts=posts, title=title)


    def get_standing():
        scoreboard = nba_py.Scoreboard()
        print scoreboard.west_conf_standings_by_day()

Here's my mainblog.py

import sys
import os
import re
import random
import hashlib
import hmac
import webapp2
import jinja2
import time


from handlers.bloghandler import BlogHandler
from handlers.blogfront import BlogFront
from handlers.deletecomment import DeleteComment
from handlers.deletepost import DeletePost
from handlers.likepost import Likes
from handlers.login import Login
from handlers.logout import Logout
from handlers.addcomment import AddComment
from handlers.newpost import NewPost
from handlers.postpage import PostPage
from handlers.signup import Signup
from handlers.signup import Register
from handlers.editcomment import EditComment
from handlers.editpost import EditPost


from models.comment import Comment
from models.user import User
from models.post import Post

from helpers import *

from string import letters
from google.appengine.ext import db


app = webapp2.WSGIApplication([('/', BlogFront),
                               ('/blog/?', BlogFront),
                               ('/postpage/([0-9]+)', PostPage),
                               ('/edit/([0-9]+)', EditPost),
                               ('/delete/([0-9]+)', DeletePost),
                               ('/addcomment/([0-9]+)', AddComment),
                               ('/blog/([0-9]+)/editcomment/([0-9]+)',
                                EditComment),
                               ('/blog/([0-9]+)/deletecomment/([0-9]+)',
                                DeleteComment),
                               ('/blog/like/([0-9]+)', Likes),
                               ('/blog/newpost', NewPost),
                               ('/signup', Register),
                               ('/login', Login),
                               ('/logout', Logout),
                               ],
                              debug=True)

The error is: ImportError: No module named libraries.nba_py

Answer 1

How did you install nba_py ?

If you install it with pip, you can just do import nba_py . There is no need for your libraries structure.

Answer 2

Do you have a __init__.py at every step in the directory chain? That always gets me

multi-user-blog
      - libraries
            - __init__.py       <-------
            - nba_py
                 - __init__.py  <-------
                 -nba_py
                     - __init__.py

Answer 3

From what you described, it's not clear whether you've followed the advice in https://cloud.google.com/appengine/docs/standard/python/tools/using-libraries-python-27 and installed nba_py into your project using using pip install -t , and also added an appengine_config.py to do a vendor.add() . Without those steps, your app will be sad.

Also, since nba_py wants to use pandas, you'll want to also pip install -t it, and since pandas wants numpy, you'll need the following in your app.yaml :

libraries:
- name: numpy
  version: "1.6.1"