Errore creazione file h5 in skalab_subrack.py

[simonechiarucci]

Se la directory fname non esiste, python da' errore durante la creazione del file h5 in h5py.File(fname, 'a').

Errore:

Traceback (most recent call last):
  File "/home/aavs/simone/aavs-system/python/utilities/skalab/skalab_subrack.py", line 188, in <lambda>
    self.wg.qbutton_connect.clicked.connect(lambda: self.connect())
  File "/home/aavs/simone/aavs-system/python/utilities/skalab/skalab_subrack.py", line 508, in connect
    self.tlm_hdf = self.setup_hdf5()
  File "/home/aavs/simone/aavs-system/python/utilities/skalab/skalab_subrack.py", line 475, in setup_hdf5
    return h5py.File(fname, 'a')
  File "/opt/aavs/python/lib/python3.8/site-packages/h5py/_hl/files.py", line 533, in __init__
    fid = make_fid(name, mode, userblock_size, fapl, fcpl, swmr=swmr)
  File "/opt/aavs/python/lib/python3.8/site-packages/h5py/_hl/files.py", line 252, in make_fid
    fid = h5f.create(name, h5f.ACC_EXCL, fapl=fapl, fcpl=fcpl)
  File "h5py/_objects.pyx", line 54, in h5py._objects.with_phil.wrapper
  File "h5py/_objects.pyx", line 55, in h5py._objects.with_phil.wrapper
  File "h5py/h5f.pyx", line 126, in h5py.h5f.create
FileNotFoundError: [Errno 2] Unable to create file (unable to open file: name = '/storage/monitoring/subrack/subrack_tlm_2023-03-24_113931.h5', errno = 2, error message = 'File o directory non esistente', flags = 15, o_flags = c2)

Attuale metodo:

def setup_hdf5(self):
        if not self.profile['SubRack']['data_path'] == "":
            fname = self.profile['SubRack']['data_path']
            if not fname[-1] == "/":
                fname = fname + "/"
            fname += datetime.datetime.strftime(datetime.datetime.utcnow(), "subrack_tlm_%Y-%m-%d_%H%M%S.h5")
            return h5py.File(fname, 'a')
        else:
            msgBox = QtWidgets.QMessageBox()
            msgBox.setText("Please Select a valid path to save the Subrack data and save it into the current profile")
            msgBox.setWindowTitle("Error!")
            msgBox.setIcon(QtWidgets.QMessageBox.Critical)
            msgBox.exec_()
            return None

Possibile soluzione:

def setup_hdf5(self):
        if not self.profile['SubRack']['data_path'] == "":
            fname = self.profile['SubRack']['data_path']
            if not fname[-1] == "/":
                fname = fname + "/"
                if  os.path.exists(str(Path.home()) + fname) != True:
                    os.makedirs(str(Path.home()) + fname)
            fname += datetime.datetime.strftime(datetime.datetime.utcnow(), "subrack_tlm_%Y-%m-%d_%H%M%S.h5")
            return h5py.File(str(Path.home()) + fname, 'a')
        else:
            msgBox = QtWidgets.QMessageBox()
            msgBox.setText("Please Select a valid path to save the Subrack data and save it into the current profile")
            msgBox.setWindowTitle("Error!")
            msgBox.setIcon(QtWidgets.QMessageBox.Critical)
            msgBox.exec_()
            return None