[Pytables-users] Problem flushing table with pytables 1.2

[Waldemar O. <wal...@gm...>]

I have very similar problem.  After the upgrade my program started
failing during the flush() operation with almost identical traceback
as Alain's.
Test suite passes OK:
-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=
=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D=
-=3D
PyTables version:  1.2
HDF5 version:      1.6.5
numarray version:  1.4.1
Zlib version:      1.2.3
Python version:    2.4.2 (#67, Sep 28 2005, 12:41:11) [MSC v.1310 32
bit (Intel)]
Byte-ordering:     little
-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=
=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D=
-=3D
Performing the complete test suite!
-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=
=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D=
-=3D
Numeric (version 24.2) is present. Adding the Numeric test suite.
Scientific.IO.NetCDF not found. Skipping HDF5 <--> NetCDF conversion tests.
-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=
=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D=
-=3D

But attached program fails with:

C:\WINDOWS\system32\cmd.exe /c test_tables.py
Traceback (most recent call last):
  File "E:\work\BatchJobs\regii\test_tables.py", line 98, in ?
    main()
  File "E:\work\BatchJobs\regii\test_tables.py", line 94, in main
    walkDB(fileh, grp, 'db')
  File "E:\work\BatchJobs\regii\test_tables.py", line 86, in walkDB
    fileh.flush()
  File "C:\python\Python24\Lib\site-packages\tables\File.py", line
1843, in flush
    leaf.flush()
  File "C:\python\Python24\Lib\site-packages\tables\Table.py", line
1880, in flush
    self._saveBufferedRows()
  File "C:\python\Python24\Lib\site-packages\tables\Table.py", line
1413, in _saveBuffered
Rows
    self._open_append(self._v_wbuffer)
  File "TableExtension.pyx", line 361, in TableExtension.Table._open_append
AttributeError: 'NoneType' object has no attribute '_data'
shell returned 1