How to use the pvl.Units function in pvl
To help you get started, we’ve selected a few pvl examples, based on popular ways it is used in public projects.
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planetarypy / planetaryimage / tests / test_pds3file.py View on Github 
# ^PTR = nnn
assert Pointer.parse(Units(101337, 'BYTES'), 0) == Pointer(None, 101337)
# ^PTR = "filename"
assert Pointer.parse('W1782844276_1.IMG', 1024) == Pointer('W1782844276_1.IMG', 0)
# ^PTR = ("filename")
assert Pointer.parse(['W1782844276_1.IMG'], 1024) == Pointer('W1782844276_1.IMG', 0)
# ^PTR = ("filename", nnn)
# Example tests/mission_data/W1782844276_1.LBL
assert Pointer.parse(['W1782844276_1.IMG', 5], 1024) == Pointer('W1782844276_1.IMG', 4096)
# ^PTR = ("filename", nnn )
assert Pointer.parse(['W1782844276_1.IMG', Units(101337, 'BYTES')], 1024) == Pointer('W1782844276_1.IMG', 101337)
# Test bad type
with pytest.raises(ValueError):
Pointer.parse(None, 64)
# Test wrong sized arrays
with pytest.raises(ValueError):
Pointer.parse([], 64)
with pytest.raises(ValueError):
Pointer.parse(['W1782844276_1.IMG', 5, 6], 64)def test_parse_pointer():
# ^PTR = nnn
# Example tests/mission_data/1p432690858esfc847p2111l2m1.img
assert Pointer.parse(56, 640) == Pointer(None, 35200)
# ^PTR = nnn
assert Pointer.parse(Units(101337, 'BYTES'), 0) == Pointer(None, 101337)
# ^PTR = "filename"
assert Pointer.parse('W1782844276_1.IMG', 1024) == Pointer('W1782844276_1.IMG', 0)
# ^PTR = ("filename")
assert Pointer.parse(['W1782844276_1.IMG'], 1024) == Pointer('W1782844276_1.IMG', 0)
# ^PTR = ("filename", nnn)
# Example tests/mission_data/W1782844276_1.LBL
assert Pointer.parse(['W1782844276_1.IMG', 5], 1024) == Pointer('W1782844276_1.IMG', 4096)
# ^PTR = ("filename", nnn )
assert Pointer.parse(['W1782844276_1.IMG', Units(101337, 'BYTES')], 1024) == Pointer('W1782844276_1.IMG', 101337)
# Test bad type
with pytest.raises(ValueError):def _parse_bytes(value, record_bytes):
if isinstance(value, six.integer_types):
return (value - 1) * record_bytes
if isinstance(value, pvl.Units) and value.units == 'BYTES':
return value.value
raise ValueError('Unsupported pointer type')pvl
Python implementation for PVL (Parameter Value Language) parsing and encoding.
