Show More
Commit Description:
merge with algo and add brython files that were missing
Commit Description:
merge with algo and add brython files that were missing
References:
File last commit:
Show/Diff file:
Action:
lib/assets/Lib/xml/dom/minicompat.py
| 105 lines
| 3.3 KiB
| text/x-python
| PythonLexer
|
| r584 | """Python version compatibility support for minidom.""" | |||
| # This module should only be imported using "import *". | ||||
| # | ||||
| # The following names are defined: | ||||
| # | ||||
| # NodeList -- lightest possible NodeList implementation | ||||
| # | ||||
| # EmptyNodeList -- lightest possible NodeList that is guaranteed to | ||||
| # remain empty (immutable) | ||||
| # | ||||
| # StringTypes -- tuple of defined string types | ||||
| # | ||||
| # defproperty -- function used in conjunction with GetattrMagic; | ||||
| # using these together is needed to make them work | ||||
| # as efficiently as possible in both Python 2.2+ | ||||
| # and older versions. For example: | ||||
| # | ||||
| # class MyClass(GetattrMagic): | ||||
| # def _get_myattr(self): | ||||
| # return something | ||||
| # | ||||
| # defproperty(MyClass, "myattr", | ||||
| # "return some value") | ||||
| # | ||||
| # For Python 2.2 and newer, this will construct a | ||||
| # property object on the class, which avoids | ||||
| # needing to override __getattr__(). It will only | ||||
| # work for read-only attributes. | ||||
| # | ||||
| # For older versions of Python, inheriting from | ||||
| # GetattrMagic will use the traditional | ||||
| # __getattr__() hackery to achieve the same effect, | ||||
| # but less efficiently. | ||||
| # | ||||
| # defproperty() should be used for each version of | ||||
| # the relevant _get_<property>() function. | ||||
| __all__ = ["NodeList", "EmptyNodeList", "StringTypes", "defproperty"] | ||||
| import xml.dom | ||||
| StringTypes = (str,) | ||||
| class NodeList(list): | ||||
| __slots__ = () | ||||
| def item(self, index): | ||||
| if 0 <= index < len(self): | ||||
| return self[index] | ||||
| def _get_length(self): | ||||
| return len(self) | ||||
| def _set_length(self, value): | ||||
| raise xml.dom.NoModificationAllowedErr( | ||||
| "attempt to modify read-only attribute 'length'") | ||||
| length = property(_get_length, _set_length, | ||||
| doc="The number of nodes in the NodeList.") | ||||
| def __getstate__(self): | ||||
| return list(self) | ||||
| def __setstate__(self, state): | ||||
| self[:] = state | ||||
| class EmptyNodeList(tuple): | ||||
| __slots__ = () | ||||
| def __add__(self, other): | ||||
| NL = NodeList() | ||||
| NL.extend(other) | ||||
| return NL | ||||
| def __radd__(self, other): | ||||
| NL = NodeList() | ||||
| NL.extend(other) | ||||
| return NL | ||||
| def item(self, index): | ||||
| return None | ||||
| def _get_length(self): | ||||
| return 0 | ||||
| def _set_length(self, value): | ||||
| raise xml.dom.NoModificationAllowedErr( | ||||
| "attempt to modify read-only attribute 'length'") | ||||
| length = property(_get_length, _set_length, | ||||
| doc="The number of nodes in the NodeList.") | ||||
| def defproperty(klass, name, doc): | ||||
| get = getattr(klass, ("_get_" + name)) | ||||
| def set(self, value, name=name): | ||||
| raise xml.dom.NoModificationAllowedErr( | ||||
| "attempt to modify read-only attribute " + repr(name)) | ||||
| assert not hasattr(klass, "_set_" + name), \ | ||||
| "expected not to find _set_" + name | ||||
| prop = property(get, set, doc=doc) | ||||
| setattr(klass, name, prop) | ||||