Why does the last statement fails?
>>> import posix
>>> os.statvfs('/boot')
posix.statvfs_result(f_bsize=1024, f_frsize=1024, f_blocks=495844L, f_bfree=412223L, f_bavail=386623L, f_files=128016L, f_ffree=127969L, f_favail=127969L, f_flag=4096, f_namemax=255)
>>> posix.statvfs_result(f_bsize=1024, f_frsize=1024, f_blocks=495844L, f_bfree=412223L, f_bavail=386623L, f_files=128016L, f_ffree=127969L, f_favail=127969L, f_flag=4096, f_namemax=255)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: structseq() takes at most 2 arguments (10 given)
The "system" asks that I explain why my problem is different than some potential duplicate. It is not so much that my problem is that different, it's just that I find that providing a direct solution here is better for pragmatic reasons: the answer to the other question doesn't clearly establish what is happening and, in doing so, keeps the scope of the answer narrow and more difficult to generalize.
Thanks to the duplicate suggestion I was able to transpose its solution to my problem.
Changing
posix.statvfs_result(f_bsize=1024, f_frsize=1024, f_blocks=495844L, f_bfree=412223L, f_bavail=386623L, f_files=128016L, f_ffree=127969L, f_favail=127969L, f_flag=4096, f_namemax=255)
to
posix.statvfs_result((1024, 1024, 495844L, 412223L, 386623L, 128016L, 127969L, 127969L, 4096, 255))
solves my problem:
>>> posix.statvfs_result((1024, 1024, 495844L, 412223L, 386623L, 128016L, 127969L, 127969L, 4096, 255))
posix.statvfs_result(f_bsize=1024, f_frsize=1024, f_blocks=495844L, f_bfree=412223L, f_bavail=386623L, f_files=128016L, f_ffree=127969L, f_favail=127969L, f_flag=4096, f_namemax=255)
So to make this more complete and convenient, here is how converting to tuple allows recreating the results of os.statvfs:
>>> tuple(os.statvfs('/boot'))
(1024, 1024, 495844L, 412223L, 386623L, 128016L, 127969L, 127969L, 4096, 255)
>>> posix.statvfs_result(tuple(os.statvfs('/boot')))
posix.statvfs_result(f_bsize=1024, f_frsize=1024, f_blocks=495844L, f_bfree=412223L, f_bavail=386623L, f_files=128016L, f_ffree=127969L, f_favail=127969L, f_flag=4096, f_namemax=255)