[Pytables-users] Problem flushing table with pytables 1.2

[Alain F. <ala...@fr...>]

"""Small but quite comprehensive example showing the use of PyTables.=0A=
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The program creates an output file, 'tutorial1.h5'.  You can view it=0A=
with any HDF5 generic utility.=0A=
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"""=0A=
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import sys=0A=
from numarray import *=0A=
from tables import *=0A=
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# Define a user record to characterize some kind of particles=0A=
class Particle(IsDescription):=0A=
    name      =3D StringCol(16)   # 16-character String=0A=
    idnumber  =3D Int64Col()      # Signed 64-bit integer=0A=
    ADCcount  =3D UInt16Col()     # Unsigned short integer=0A=
    TDCcount  =3D UInt8Col()      # unsigned byte=0A=
    grid_i    =3D Int32Col()      # integer=0A=
    grid_j    =3D IntCol()        # integer (equivalent to Int32Col)=0A=
    pressure  =3D Float32Col()    # float  (single-precision)=0A=
    energy    =3D FloatCol()      # double (double-precision)=0A=
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def create_file():=0A=
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    print=0A=
    print	'-**-**-**-**-**-**- file creation  -**-**-**-**-**-**-**-'=0A=
    =0A=
    # The name of our HDF5 filename=0A=
    filename =3D "tutorial1.h5"=0A=
    =0A=
    print "Creating file:", filename=0A=
    =0A=
    # Open a file in "w"rite mode=0A=
    h5file =3D openFile(filename, mode =3D "w", title =3D "Test file")=0A=
    =0A=
    print=0A=
    print	'-**-**-**-**-**- group and table creation  =
-**-**-**-**-**-**-**-'=0A=
    =0A=
    # Create a new group under "/" (root)=0A=
    group =3D h5file.createGroup("/", 'detector', 'Detector information')=0A=
    print "Group '/detector' created"=0A=
    =0A=
    # Create one table on it=0A=
    table =3D h5file.createTable(group, 'readout', Particle, "Readout =
example")=0A=
    print "Table '/detector/readout' created"=0A=
    =0A=
    return h5file=0A=
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def fill_10(h5file):=0A=
    for group in h5file.walkGroups("/detector"):=0A=
        entity_g =3D group=0A=
        =0A=
    table =3D entity_g.readout=0A=
    # Get a shortcut to the record object in table=0A=
    particle =3D table.row=0A=
    =0A=
    # Fill the table with 10 particles=0A=
    for i in xrange(10):=0A=
        particle['name']  =3D 'Particle: %6d' % (i)=0A=
        particle['TDCcount'] =3D i % 256=0A=
        particle['ADCcount'] =3D (i * 256) % (1 << 16)=0A=
        particle['grid_i'] =3D i=0A=
        particle['grid_j'] =3D 10 - i=0A=
        particle['pressure'] =3D float(i*i)=0A=
        particle['energy'] =3D float(particle['pressure'] ** 4)=0A=
        particle['idnumber'] =3D i * (2 ** 34)=0A=
        # Insert a new particle record=0A=
        particle.append()=0A=
        =0A=
   =0A=
def _unittest():=0A=
    h5file =3D create_file()=0A=
    =0A=
    fill_10(h5file)=0A=
    =0A=
    # Flush the buffers for table=0A=
    for group in h5file.walkGroups("/detector"):=0A=
        entity_g =3D group=0A=
        =0A=
    table =3D entity_g.readout=0A=
    table.flush()# Close the file=0A=
    h5file.close()=0A=
    print "File '"+filename+"' created"=0A=
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if __name__ =3D=3D '__main__':=0A=
    _unittest()=0A=
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