IOError: [Errno 13] file not accessible with Google AppEngine 1.6.1

Question

Maybe it\'s a bug, but I\'m posting here anyway.

I get the following issue on my local AppEngine testing server:

WARNING  2012-01-10 06:08:40,336 rdb         


        

Answer 1

In some cases, this error is caused by dev_appserver.py returning fail for the open call when the file name matches a skip_files pattern in app.yaml. Check app.yaml even when running dev_appserver.py locally.

Answer 2

I have another answer to his problem, which I experienced by myself. If you have for example a templates directory like this:

templates
|-- css
|-- img
|-- js
|-- html

And your app.yaml file like this:

- url: /templates
  static_dir: templates

You are not able to render a template with jinja2 if you use this name:

JINJA_ENVIRONMENT.get_template('html/index.html')

I think that's because the static_dir option somehow blocks this directory for jinja2, at least I think so, maybe it helps someone!

Answer 3

Simply remove the file setuptools-0.6c11-py2.7.egg from your site packages.

Find the location of your site packages

Start python CLI:

python

List site packages:

>>> import site; site.getsitepackages()

Answer 4

Instead of referencing my variable using a hardcoded path variable, I'm now using:

PROJECT_DIR = os.path.dirname(__file__)

And it's working. I'll let you know if the issue comes back (I saw some articles describing it as being randomly recurrent).

I also applied the patch in comment 29 on http://code.google.com/p/googleappengine/issues/detail?id=4339

Answer 5

I have been puzzled by similar issue - IOError when importing an egg file / package from site-packages. I am using Ubuntu 13.10, GAE 1.8.8, virtualenv and python 2.7.

In the end, I've worked out that I could not import anything that I installed using easy_install (which by defaults puts egg files into site_packages).

Once I uninstalled all these eggs, and reinstalled using pip install command, everything started working normally.

Hoping this will save someone else some time, as I will never get my wasted hours back.

Answer 6

might be late but maybe would help someone else.
so, when you add

jinja2.FileSystemLoader(os.path.join(os.path.dirname(__file__), 'templates'))

don't add
- url: /templates static_dir: templates
to your app.yaml file