python - Static files application_readable usage -

i've been trying understand how application_readable static url handler field works. i'm using sdk version 1.7.7 , i've set true on application in dev environment, can't seem read file:

# app.yaml  - url: /test   static_dir: application/static/test   application_readable: true  # app.py  path = os.path.join(os.path.split(__file__)[0], 'static/test/test.png') self.response.out.write('looking %s...' % path) self.response.out.write(os.path.exists(path)) self.response.out.write("\n") path = '/application/static/test/test.png' self.response.out.write('looking %s...' % path) self.response.out.write(os.path.exists(path)) self.response.out.write("\n") path = 'application/static/test/test.png' self.response.out.write('looking %s...' % path) self.response.out.write(os.path.exists(path)) self.response.out.write("\n") path = '/static/test/test.png' self.response.out.write('looking %s...' % path) self.response.out.write(os.path.exists(path)) self.response.out.write("\n") path = 'static/test/test.png' self.response.out.write('looking %s...' % path) self.response.out.write(os.path.exists(path)) self.response.out.write("\n") path = '/test/test.png' self.response.out.write('looking %s...' % path) self.response.out.write(os.path.exists(path)) self.response.out.write("\n") path = 'test/test.png' self.response.out.write('looking %s...' % path) self.response.out.write(os.path.exists(path)) self.response.out.write("\n") path = '/test.png' self.response.out.write('looking %s...' % path) self.response.out.write(os.path.exists(path)) self.response.out.write("\n") path = 'test.png' self.response.out.write('looking %s...' % path) self.response.out.write(os.path.exists(path)) 

but none of work:

looking /vagrant/test/application/static/test/test.png...false looking /application/static/test/test.png...false looking application/static/test/test.png...false looking /static/test/test.png...false looking static/test/test.png...false looking /test/test.png...false looking test/test.png...false looking /test.png...false looking test.png...false 

though file exists:

vagrant@precise64:/vagrant/kissyface$ ls -l /vagrant/test/application/static/test/test.png -rwxrwxrwx 1 vagrant vagrant 9920 may  3 18:13 /vagrant/test/application/static/test/test.png 

can tell me i'm doing wrong? haven't been able find documentation or example code beyond brief description in statis url handler docs , mention in appengine sdk 1.7.6 changelog. there utility class provides access these files, or misinterpreting application_readable supposed do?

overview

it's difficult reason exactly going on on system, can tell works on mine. can speculate day wrong, implementing works , working backwards more productive guessing; anything.

if guess, i'd problem is:

1. incorrect handler order
2. screwed python paths
3. screwed python versions
4. using janky old sdk
5. underpants gnomes

---

if, instead of guessing, implement project i've outlined below, should pretty simple reason backward , find out why it's not working you. if project doesn't work, you've got work do. problem's nasty (and don't want fix it). if work, you're in luck, since you're 5 or 10 minutes away having rest of code working too!

using latest python appengine sdk http://code.google.com/p/googleappengine/downloads/list:

google_appengine_1.8.0.zip 71b5f3ee06dce0a7d6af32d65ae27272eac038cb 

project files , contents:

directory setup:

. ├── app.py ├── app.pyc ├── app.yaml └── static     └── hi.txt 

app.py:

import webapp2 import os  class mainpage(webapp2.requesthandler):     def get(self):         self.response.headers['content-type'] = 'text/plain'         self.response.out.write('hello, webapp world!\n\n')          path = os.path.join(os.path.split(__file__)[0], 'static/hi.txt')         self.response.out.write(open(path).readlines()[0])  application = webapp2.wsgiapplication([('/.*', mainpage)]) 

app.pyc (automatically) compiled version of file.

app.yaml:

application: myapp version: 1 runtime: python27 api_version: 1 threadsafe: yes  handlers: - url: /static   static_dir: static   application_readable: true - url: /.*   script: app.application 

static/hi.txt:

ezra can see text fine; i'm not sure why can't... hi! 

what happens:

start webserver project root:

 dev_appserver.py --port 80 . 

you might have use different port number; it's no big deal. adjust instructions follow 1 choose.

visiting http://localhost/ in browser:

http response:

info     2013-05-14 09:45:57,372 server.py:585] default: "get / http/1.1" 200 85 

browser output:

hello, webapp world!

ezra can see text fine; i'm not sure why can't... hi!

visiting http://localhost/static/hi.txt in browser:

http response:

info     2013-05-14 09:48:42,785 server.py:585] default: "get /static/hi.txt http/1.1" 200 63 

browser output:

ezra can see text fine; i'm not sure why can't... hi!

breaking it:

if remove application_readable: true line app.yaml:

visiting http://localhost/ in browser:

http response:

error    2013-05-14 09:51:13,290 webapp2.py:1528] [errno 13] file not accessible: '.../static/hi.txt' 

browser output:

500 internal server error

the server has either erred or incapable of performing requested operation.

what next:

hopefully can work backwards example. if doesn't work you, you're doomed. enjoy spending sunny mid-may afternoon trawling through paths , trying (re/un)install things frickin' thing going. list @ top list of i'd try, without knowing specifics , having ruled out programming error. luck!