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POGoogle App Engine: TypeError: 'tuple' object is not callable
 

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  1. POGoogle App Engine: TypeError: 'tuple' object is not callable
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    <p>Currently trying to create a basic blog using Google App Engine in Python. Here's the python code that I am using:</p> <pre><code>import os import re import webapp2 import jinja2 from string import letters from google.appengine.ext import db template_dir = os.path.join(os.path.dirname(__file__), 'templates') jinja_env = jinja2.Environment(loader = jinja2.FileSystemLoader(template_dir), autoescape=True) class Handler(webapp2.RequestHandler): def write(self, *a, **kw): self.response.out.write(*a, **kw) def render_str(self, template, **params): t = jinja_env.get_template(template) return t.render(params) def render(self, template, **kw): self.write(self.render_str(template, **kw)) def post_key(name = "dad"): return db.Key.from_path('blog', name) class Blogger(db.Model): name = db.StringProperty() content = db.TextProperty() created = db.DateTimeProperty(auto_now_add = True) def render(self): self._render_text = self.content.replace('\n', '&lt;br&gt;') return render_str("post.html", p = self) class MainPage(Handler): def get(self): self.response.write("Visit our blog") class BlogHandler(Handler): def get(self): posts = db.GqlQuery("SELECT * FROM Blogger order by created desc") self.render("frontblog.html", posts = posts) class SubmitHandler(Handler): def get(self): self.render("temp.html") def post(self): name = self.request.get("name") content = self.request.get("content") if name and content: a = Blogger(parent = post_key(), name = name, content = content) a.put() self.redirect('/blog/%s' % str(a.key().id())) else: error = "Fill in both the columns!" self.render("temp.html", name = name, content = content, error = error) class DisplayPost(Handler): def get(self, post_id): po = Blogger.get_by_id(post_id) if po: self.render("perma.html", po = po) else: self.response.write("404 Error") app = webapp2.WSGIApplication([('/', MainPage), ('/blog', BlogHandler), ('/blog/submit', SubmitHandler) ('/blog/([0-9]+)', DisplayPost)], debug=True) </code></pre> <p>However, when I try to run this code on my local server, this is what I get as an error:</p> <pre><code>File "F:\Python 2.7\engineapp1\HelloApp\appapp\main.py", line 66, in &lt;module&gt; ('/blog/([0-9]+)', DisplayPost)], debug=True) TypeError: 'tuple' object is not callable </code></pre> <p>What seems to be the problem here?</p>
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