Hello, This is probably a simple thing to fix, but I've been trying to use the volume rendering package on my data and am running into an error. If I follow the steps at http://paste.enzotools.org/show/404/ when I get to mi,ma = dd.quantities["Extrema"]("Density")[0] I get the error message at the bottom of this email. It seems that it is looking for files ending in .cpu000# rather than .grid.cpu000# like the default enzo output. I've tried doing a rename but then I get the same error but the other way around. Making a copy of the file with each filename works if I'm just doing a single image, but I'm trying to make a movie so doing that for 100 files for 8 cpus each would be a bit tedious. If anyone knows a way around this or I'm doing something wrong, I'd appreciate any suggestions. Thanks -Mike In [8]: mi,ma=dd.quantities["Extrema"]("Density")[0] ERROR: An unexpected error occurred while tokenizing input The following traceback may be corrupted or invalid The error message is: ('EOF in multi-line statement', (105, 0)) ERROR: An unexpected error occurred while tokenizing input The following traceback may be corrupted or invalid The error message is: ('EOF in multi-line statement', (72, 0)) ERROR: An unexpected error occurred while tokenizing input The following traceback may be corrupted or invalid The error message is: ('EOF in multi-line statement', (119, 0)) --------------------------------------------------------------------------- ReadingError Traceback (most recent call last) /home/butler85/yt/src/yt-trunk-svn/scripts/iyt in <module>() ----> 1 2 3 4 5 /home/butler85/yt/src/yt-trunk-svn/yt/lagos/DerivedQuantities.pyc in __call__(self, *args, **kwargs) 70 self._data_source.pf.h.io) 71 if lazy_reader and not self.force_unlazy: ---> 72 return self._call_func_lazy(args, kwargs) 73 else: 74 return self._call_func_unlazy(args, kwargs) /home/butler85/yt/src/yt-trunk-svn/yt/lagos/DerivedQuantities.pyc in _call_func_lazy(self, args, kwargs) 77 self.retvals = [ [] for i in range(self.n_ret)] 78 for gi,g in enumerate(self._get_grids()): ---> 79 rv = self.func(GridChildMaskWrapper(g, self._data_source), *args, **kwargs) 80 for i in range(self.n_ret): self.retvals[i].append(rv[i]) 81 g.clear_data() /home/butler85/yt/src/yt-trunk-svn/yt/lagos/DerivedQuantities.pyc in _Extrema(data, fields, filter) 385 mins, maxs = [], [] 386 for field in fields: --> 387 if data[field].size < 1: 388 mins.append(1e90) 389 maxs.append(-1e90) /home/butler85/yt/src/yt-trunk-svn/yt/lagos/DerivedQuantities.pyc in __getitem__(self, item) 41 return getattr(self.grid, attr) 42 def __getitem__(self, item): ---> 43 return self.data_source._get_data_from_grid(self.grid, item) 44 45 class DerivedQuantity(ParallelAnalysisInterface): /home/butler85/yt/src/yt-trunk-svn/yt/lagos/BaseDataTypes.pyc in save_state(self, grid, field) 41 old_keys = grid.data.keys() 42 grid.field_parameters = self.field_parameters ---> 43 tr = func(self, grid, field) 44 grid.field_parameters = old_params 45 grid.data = dict( [(k, grid.data[k]) for k in old_keys] ) /home/butler85/yt/src/yt-trunk-svn/yt/lagos/BaseDataTypes.pyc in _get_data_from_grid(self, grid, field) 1660 else: 1661 pointI = self._get_point_indices(grid) -> 1662 if grid[field].size == 1: # dx, dy, dz, cellvolume 1663 t = grid[field] * na.ones(grid.ActiveDimensions, dtype='float64') 1664 return t[pointI].ravel() /home/butler85/yt/src/yt-trunk-svn/yt/lagos/BaseGridType.pyc in __getitem__(self, key) 133 """ 134 if not self.data.has_key(key): --> 135 self.get_data(key) 136 return self.data[key] 137 /home/butler85/yt/src/yt-trunk-svn/yt/lagos/BaseGridType.pyc in get_data(self, field) 166 return self.data[field] 167 try: --> 168 temp = self.hierarchy.io.pop(self, field) 169 self[field] = na.multiply(temp, conv_factor, temp) 170 except self.hierarchy.io._read_exception, exc: /home/butler85/yt/src/yt-trunk-svn/yt/lagos/DataReadingFuncs.pyc in pop(self, grid, field) 55 else: 56 # We only read the one set and do not store it if it isn't pre-loaded ---> 57 return self._read_data_set(grid, field) 58 59 def peek(self, grid, field): /home/butler85/yt/src/yt-trunk-svn/yt/lagos/DataReadingFuncs.pyc in _read_data_set(self, grid, field) 232 def _read_data_set(self, grid, field): 233 return HDF5LightReader.ReadData(grid.filename, --> 234 "/Grid%08i/%s" % (grid.id, field)).swapaxes(0,2) 235 236 def _read_data_slice(self, grid, field, axis, coord): ReadingError: ReadHDF5DataSet: /home/butler85/sim/starsfuvamrrec/Cloud_128AMR4StarsFUV_0101.cpu0000 does not exist, or no read permissions