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Remove singledispatch import conditional

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This commit is contained in:
Nikolaus Waxweiler 2019-10-12 12:20:06 +01:00
parent 969df8303b
commit b0afdc273e
1 changed files with 14 additions and 45 deletions
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59
Lib/fontTools/misc/plistlib.py
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@ -364,52 +364,21 @@ def _string_or_data_element(raw_bytes, ctx):
return _string_element(string, ctx)
# if singledispatch is available, we use a generic '_make_element' function
# and register overloaded implementations that are run based on the type of
# the first argument
@singledispatch
def _make_element(value, ctx):
raise TypeError("unsupported type: %s" % type(value))
if singledispatch is not None:
@singledispatch
def _make_element(value, ctx):
raise TypeError("unsupported type: %s" % type(value))
_make_element.register(unicode)(_string_element)
_make_element.register(bool)(_bool_element)
_make_element.register(Integral)(_integer_element)
_make_element.register(float)(_real_element)
_make_element.register(Mapping)(_dict_element)
_make_element.register(list)(_array_element)
_make_element.register(tuple)(_array_element)
_make_element.register(datetime)(_date_element)
_make_element.register(bytes)(_string_or_data_element)
_make_element.register(bytearray)(_data_element)
_make_element.register(Data)(lambda v, ctx: _data_element(v.data, ctx))
else:
# otherwise we use a long switch-like if statement
def _make_element(value, ctx):
if isinstance(value, unicode):
return _string_element(value, ctx)
elif isinstance(value, bool):
return _bool_element(value, ctx)
elif isinstance(value, Integral):
return _integer_element(value, ctx)
elif isinstance(value, float):
return _real_element(value, ctx)
elif isinstance(value, Mapping):
return _dict_element(value, ctx)
elif isinstance(value, (list, tuple)):
return _array_element(value, ctx)
elif isinstance(value, datetime):
return _date_element(value, ctx)
elif isinstance(value, bytes):
return _string_or_data_element(value, ctx)
elif isinstance(value, bytearray):
return _data_element(value, ctx)
elif isinstance(value, Data):
return _data_element(value.data, ctx)
_make_element.register(unicode)(_string_element)
_make_element.register(bool)(_bool_element)
_make_element.register(Integral)(_integer_element)
_make_element.register(float)(_real_element)
_make_element.register(Mapping)(_dict_element)
_make_element.register(list)(_array_element)
_make_element.register(tuple)(_array_element)
_make_element.register(datetime)(_date_element)
_make_element.register(bytes)(_string_or_data_element)
_make_element.register(bytearray)(_data_element)
_make_element.register(Data)(lambda v, ctx: _data_element(v.data, ctx))
# Public functions to create element tree from plist-compatible python