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ViewFile

The ViewFile class has been removed. Here are some notes in case anyone needs to use it again (i.e us!)

from holoviews.core.io import UnPickler
CustomFile(metadata_fn=lambda f: Unpickler.key(f),
           data_fn = lambda f: {e: Unpickler.load(f, [e])
                               for e in Unpickler.entries(f)})

Note this will only work if all the hvz files have matching entries. Otherwise, you may use this simple data_fn:

data_fn = lambda f: {'data': Unpickler.load(f)}

The originalViewFile definition made be found here

Path formatter

def path_formatter(path, max_len=15, max_components=None, ellipses='...'):
    path = path.replace(os.path.expanduser("~"), '~')
    root, basename = os.path.split(path)
    split = [el for el in root.split(os.sep) if el != '']
    max_components = max_components if max_components else float('inf')
    components, total = [], 0
    for i, el in enumerate(split):
        if (total+len(el) > max_len) or i > max_components: break
        total += len(el)
        components.append(el)
    return os.sep.join(components+[ellipses, basename]) if ellipses else None

E.g

value_dimensions=[Dimension(self.key, formatter=path_formatter)])