append & data_columns=True
Hello

i create a new store and i am trying to append it.
all is right when i did :
store.append("table", dataframe)
but when i did the whole thing with data_columns=dataframe.columns or data_columns=True
i can write the first append and then nothing ....
no more data input
tore.append("table", dataframe,data_columns=dataframe.columns )
any help ?
sorry for the delay i was in week end.

CODE

 dt = '405B'
dataall = np.fromfile(fname, dtype=dt)
dataall = np.delete(dataall, 0, axis=0)
data = dataall
datas = pd.DataFrame(data)
DU = datetime.timedelta(minutes=1)
 DT = datetime.datetime(an, mois, jour, data[0,0], data[0,1], data[0,2], data[0,3])
DF = DT + DU
path = "/stream2"
                    datas["datetime"]=pd.to_datetime(d[0] + "T" +datas[0].astype(str)+":"+datas[1].astype(str)+":"+datas[2].astype(str)+"."+datas[3].astype(str), format='%d/%m/%yT%H:%M:%S.%f')
 ind = datas["datetime"]
polarite = np.empty((data.shape[0],1),dtype ="U")
polarite[::2,0]="D"
polarite[1::2,0]="G"
DATA = data[:,coldeb:colfin]
L = []
for j in np.arange(0,400):
       z = str(j)
       z = "f"+z
L.append(z)
dt = np.dtype((str, 4))
Z = np.fromiter(L, dt)

table = pd.DataFrame(DATA,index=ind,columns=Z)
table["polarite"] = polarite
table["status"]=data[:,-1]
store.append(path,
         table,format='table',
        data_columns=True,
       append=True )

INSTALLED VERSIONS

commit: None
python: 3.4.0.final.0
python-bits: 64
OS: Linux
OS-release: 3.13.0-40-generic
machine: x86_64
processor: x86_64
byteorder: little
LC_ALL: None
LANG: en_US.UTF-8

pandas: 0.15.1
nose: 1.3.4
Cython: 0.21.1
numpy: 1.9.1
scipy: 0.14.0
statsmodels: 0.6.1
IPython: 2.3.1
sphinx: None
patsy: 0.3.0
dateutil: 2.2
pytz: 2014.10
bottleneck: None
tables: 3.1.1
numexpr: 2.4
matplotlib: 1.4.2
openpyxl: None
xlrd: None
xlwt: None
xlsxwriter: None
lxml: None
bs4: None
html5lib: None
httplib2: None
apiclient: None
rpy2: None
sqlalchemy: None
pymysql: None
psycopg2: None

DF.INFOS()

<class 'pandas.core.frame.DataFrame'>
DatetimeIndex: 57469 entries, 2013-02-02 08:05:06 to 2013-02-02 16:03:59.610000
Columns: 402 entries, f0 to status
dtypes: object(1), uint8(401)
memory usage: 22.9 MB
