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# pandas.HDFStore.walk

HDFStore.walk(where='/')

  Walk the pytables group hierarchy for pandas objects.

  This generator will yield the group path, subgroups and pandas object names for each group.

  Any non-pandas PyTables objects that are not a group will be ignored.

  The where group itself is listed first (preorder), then each of its child groups (following an alphanumerical order) is also traversed, following the same procedure.

  Parameters:
    where str, default “/”

      Group where to start walking.

  Yields:
    path str

      Full path to a group (without trailing ‘/’).

    groups list

      Names (strings) of the groups contained in path.

    leaves list

      Names (strings) of the pandas objects contained in path.

  Examples

      >>> df1 = pd.DataFrame([[1, 2], [3, 4]], columns=['A', 'B'])
      >>> store = pd.HDFStore("store.h5", 'w')
      >>> store.put('data', df1, format='table')
      >>> df2 = pd.DataFrame([[5, 6], [7, 8]], columns=['A', 'B'])
      >>> store.append('data', df2)
      >>> store.close()
      >>> for group in store.walk():
      ...     print(group)
      >>> store.close()