[Users] .h5 file issue.

Bilal Hameed bilalhameedawan962 at gmail.com
Tue Sep 1 06:26:57 CDT 2020

Dear Users,

I am trying to open a .h5 file in jupyter-notebook. Please anyone guide 
me about reading of HDF files.


import h5py
filename = "ct_multilevel-err.h5"
with h5py.File(filename, "r") as f:
     # List all groups
     print("Keys: %s" % f.keys())
     a_group_key = list(f.keys())[0]

     # Get the data
     data = list(f[a_group_key])


IOError                                    Traceback (most recent call last)
<ipython-input-12-769b4593257a>  in<module>()
1  filename=  "ct_multilevel-err.h5"
----> 2with  h5py.File(filename,  "r")  as  f:
3      # List all groups
4      print("Keys: %s"  %  f.keys())
5      a_group_key=  list(f.keys())[0]

/usr/local/lib/python2.7/dist-packages/h5py/_hl/files.pyc  in__init__(self, name, mode, driver, libver, userblock_size, swmr, 
rdcc_nslots, rdcc_nbytes, rdcc_w0, track_order, **kwds)
406                  fid = make_fid(name, mode, userblock_size,
407                                 fapl,  fcpl=make_fcpl(track_order=track_order),
--> 408swmr=swmr) 409  
410              if  isinstance(libver,  tuple):

/usr/local/lib/python2.7/dist-packages/h5py/_hl/files.pyc  inmake_fid(name, mode, userblock_size, fapl, fcpl, swmr)
171          if  swmrand  swmr_support:
172              flags|=  h5f.ACC_SWMR_READ
--> 173fid=  h5f.open(name,  flags,  fapl=fapl)
174      elif  mode==  'r+':
175          fid=  h5f.open(name,  h5f.ACC_RDWR,  fapl=fapl)

h5py/_objects.pyx  inh5py._objects.with_phil.wrapper()

h5py/_objects.pyx  inh5py._objects.with_phil.wrapper()

h5py/h5f.pyx  inh5py.h5f.open()

*IOError**: Unable to open file (unable to open file: name = 
'ct_multilevel-err.h5', errno = 2, error message = 'No such file or 
directory', flags = 0, o_flags = 0)*

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