如何在Google App Engine中修复此编码错误

Question

我是Google App Engine和Django表单的新手。

import webapp2 
from google.appengine.ext import db 
from google.appengine.ext.webapp import template 

from django import newforms as forms 
from google.appengine.ext.db import djangoforms 

import os 
import re 

import fix_path 
import config 
import static 

def slugify(s): 
    return re.sub('[^a-zA-Z0-9-]+', '-', s).strip('-') 

def format_post_path(post, num): 
    slug = slugify(post.title) 
    if num > 0: 
     slug += "-" + str(num) 
    return config.post_path_format % { 
     'slug': slug, 
     'year': post.published.year, 
     'month': post.published.month, 
     'day': post.published.day, 
    } 

def render_template(template_name, template_vals=None, theme=None): 
    template_path = os.path.join("themes", theme or config.theme, template_name) 
    return template.render(template_path, template_vals or {}) 

class BlogPost(db.Model): 
    # The url path to the blog post. Posts have a path if they are published. 
    path = db.StringProperty() 
    title = db.StringProperty(required=True, Indexed=False) 
    body = db.TextProperty(required=True) 
    published = db.DateTimeProperty(auto_now_add=True) 
    updated = db.DateTimeProperty(auto_now=True) 

def render(self): 
    template_vals = { 
     'config': config, 
     'post': self, 
    } 
    return render_template("post.html", template_vals) 

def publish(self): 
    rendered = self.render() 
    if not self.path: 
     num = 0 
     content = None 
     while not content: 
      path = format_post_path(self, num) 
      content = static.add(path, rendered, "text/html") 
      num += 1 
     self.path = path 
     self.put() 
    else: 
     static.set(self.path, rendered, "text/html") 

class PostForm(djangoforms.ModelForm): 
    class Meta: 
     model = BlogPost 
     exclude = ['path', 'published', 'update'] 

class PostHandler(webapp2.RequestHandler) 
    def render_to_response(self, template_name, template_vals=None, theme=None): 
     template_name = os.path.join("admin", template_name) 
     self.response.out.write(render_template(template_name, template_vals, theme)) 

    def render_form(self, form): 
     self.render_to_response("edit.html", {'form': form}) 

    def get(self): 
     self.render_form(PostForm()) 

    def post(self) 
     form = PostForm(date=self.request.POST) 
     if form.is_valid(): 
      post = form.save(commit=False) 
      post.publish() 
      self.render_to_response("published.html", {'post': post}) 
     else: 
      self.render_form(form) 

app = webapp2.WSGIApplication([('/admin/newpost', PostHandler)], 
           debug=True) 

这里是回溯：当我尝试运行的后续代码我发现了一个编码错误。

ERROR 2012-05-08 10:35:03,609 cgi.py:121] Traceback (most recent call last): 
     File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver_import_hook.py", line 676, in Decorate 
     return func(self, *args, **kwargs) 
     File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver_import_hook.py", line 1911, in get_code 
     source_code.decode(encoding) 
    UnicodeDecodeError: 'ascii' codec can't decode byte 0xef in position 0: ordinal not in range(128) 

INFO  2012-05-08 10:35:03,627 dev_appserver.py:2891] "GET /admin/newpost HTTP/1.1" 500 - 

回溯没有给我足够的信息来解决问题。有任何想法吗？

Answer 1

当我遇到appengine的这个问题时，我可以将所有的数据清理到unicode/utf-8然后工作。

你的一些数据不是unicode/utf-8。我在使用GAE的几次会议上遇到过这个问题，它始终是数据，而不是以某种方式不是unicode的源代码。

如果您检查您的数据和/或源格式并将所有内容设置为utf-8/unicode，它将起作用。看起来你已经将所有的东西都设置为utf-8，但是如果你仍然得到这个错误，这意味着一些字符串或类似的字符串是utf-8以外的其他字符集。