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Current path: opt/alt/python39/lib64/python3.9/lib2to3/fixes/

✏️ Editing: fix_paren.py

"""Fixer that adds parentheses where they are required

This converts ``[x for x in 1, 2]`` to ``[x for x in (1, 2)]``."""

# By Taek Joo Kim and Benjamin Peterson

# Local imports
from .. import fixer_base
from ..fixer_util import LParen, RParen

# XXX This doesn't support nested for loops like [x for x in 1, 2 for x in 1, 2]
class FixParen(fixer_base.BaseFix):
    BM_compatible = True

PATTERN = """
        atom< ('[' | '(')
            (listmaker< any
                comp_for<
                    'for' NAME 'in'
                    target=testlist_safe< any (',' any)+ [',']
                     >
                    [any]
                >
            >
            |
            testlist_gexp< any
                comp_for<
                    'for' NAME 'in'
                    target=testlist_safe< any (',' any)+ [',']
                     >
                    [any]
                >
            >)
        (']' | ')') >
    """

def transform(self, node, results):
        target = results["target"]

lparen = LParen()
        lparen.prefix = target.prefix
        target.prefix = "" # Make it hug the parentheses
        target.insert_child(0, lparen)
        target.append_child(RParen())

📁 __pycache__ | ✏️ Rename | 🗑️ Delete
📄 fix_apply.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_asserts.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_basestring.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_buffer.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_dict.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_except.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_exec.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_execfile.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_exitfunc.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_filter.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_funcattrs.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_future.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_getcwdu.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_has_key.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_idioms.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_import.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_imports.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_imports2.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_input.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_intern.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_isinstance.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_itertools.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_itertools_imports.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_long.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_map.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_metaclass.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_methodattrs.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_ne.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_next.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_nonzero.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_numliterals.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_operator.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_paren.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_print.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_raise.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_raw_input.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_reduce.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_reload.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_renames.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_repr.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_set_literal.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_standarderror.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_sys_exc.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_throw.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_tuple_params.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_types.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_unicode.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_urllib.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_ws_comma.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_xrange.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_xreadlines.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 fix_zip.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete
📄 __init__.py | ✏️ Edit | ✏️ Rename | 🗑️ Delete

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