I have made an intensive investigation into this one. I am java
developer not a python guy but still I think you would consider my
findings interesting:

Looks like it is a problem with the state of python bullt-in time module
at the moment of the failure.

The problem stems from fact that the very first invocation of
time.time() invocation yields NaN. I have tried to investigate the time
method and time module but both dir() and help() would work just fine
and produce believable results. Then I noted the traceback of the
failure is not a full length so I added explicit traceback.print_stack()
call nearby - AND THE DAMMED THING JUST STARTED TO WORK!!!!!!!!!!!!!!!!!

The traceback.print_stack()  must internally manipulate the python
modules loaded and make some change to it. There are some interesting
constructs on the stack - e.g. yield based iterator or some native code
- might this have something with the problem? I have run into similar
problem

This is the modified
/usr/share/pyshared/desktopcouch/application/local_files.py
save_to_file method starting at line 157

    def save_to_file(self, file_name):
        """Save to file."""
        container = os.path.split(file_name)[0]
        import traceback, sys, time
        sys.stderr.write(
        """ ----------------------------------
                           Traceback 
        ----------------------------------  """)
        traceback.print_stack()
        sys.stderr.write(""" 
                             Time %s 
        --------------------------------------- """ % time.time)
        fd, temp_file_name = tempfile.mkstemp(dir=container)
        f = os.fdopen(fd, "w")
        try:
            self._c.write(f)
        finally:
            f.close()
        os.rename(temp_file_name, file_name)

Is there some linux & python guy willing to help me to investigate it
further and come to reasonable conclusion?

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https://bugs.launchpad.net/bugs/886159

Title:
  desktopcouch Value error cannot covert float Nan to integer

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