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bpo-33983: Make lib2to3.pytree.Base.children a list #7977

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amyreese wants to merge 1 commit into from
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bpo-33983: Make lib2to3.pytree.Base.children a list #7977

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2 changes: 1 addition & 1 deletion Lib/lib2to3/pytree.py
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Expand Up @@ -42,7 +42,7 @@ class Base(object):
# Default values for instance variables
type = None # int: token number (< 256) or symbol number (>= 256)
parent = None # Parent node pointer, or None
children = () # Tuple of subnodes
children = [] # List of subnodes
was_changed = False
was_checked = False

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2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Library/2018-06-27-13-55-05.bpo-33983.MRbonR.rst
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@@ -0,0 +1,2 @@
:class:`lib2to3.pytree.Base` sets the `children` attribute to an empty
list to be more consistent with :class:`lib2to3.pytree.Node`.