FAQ

=========================
FUSE-Python_ bindings FAQ
=========================

.. _FUSE-Python: https://github.com/libfuse/python-fuse

:Author: Csaba Henk


Frequently Asked Questions
==========================

Compilation of ``fuseparts/_fusemodule.c`` fails with *error: too few arguments to function*
--------------------------------------------------------------------------------------------

Most likely you have FUSE 2.6.0-pre2. Most likely you are on Gentoo.

While fuse-py tries to work with as many API revisions as it's possible, the
2.6.0-pre2 release uses a half-baked state of API 26, which won't work with
fuse-py. The same issue can occur if you use a CVS snapshot.

Solutions:

* Enforce the usage of a stabilized API (practically, API 25) with::

    env CFLAGS=-DFUSE_USE_VERSION=25 python setup.py build 

* Upgrade your FUSE installation. As of writing this, 2.6.0-pre3 is available.

When I use a dedicated file class, how can I tell apart the cases when an instance of it is instantiated from a ``CREATE`` callback and when it's instantiated from an ``OPEN`` callback? 
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

If your file class is instantiated via ``FUSE_OPEN``, then it's
``__init__`` will be called with ``(path, flags)`` arguments.

If your file class is instantiated via ``FUSE_CREATE``, then it's
``__init__`` will be called with ``(path, flags, mode)`` arguments.