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/proc/thread-self/root/proc/thread-self/root/lib64/python3.9/lib2to3/fixes

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fix_zip.py1.3 KB · 47 lines
"""Fixer that changes zip(seq0, seq1, ...) into list(zip(seq0, seq1, ...)unless there exists a 'from future_builtins import zip' statement in thetop-level namespace. We avoid the transformation if the zip() call is directly contained initer(<>), list(<>), tuple(<>), sorted(<>), ...join(<>), or for V in <>:.""" # Local importsfrom .. import fixer_basefrom ..pytree import Nodefrom ..pygram import python_symbols as symsfrom ..fixer_util import Name, ArgList, in_special_context  class FixZip(fixer_base.ConditionalFix):     BM_compatible = True    PATTERN = """    power< 'zip' args=trailer< '(' [any] ')' > [trailers=trailer*]    >    """     skip_on = "future_builtins.zip"     def transform(self, node, results):        if self.should_skip(node):            return         if in_special_context(node):            return None         args = results['args'].clone()        args.prefix = ""         trailers = []        if 'trailers' in results:            trailers = [n.clone() for n in results['trailers']]            for n in trailers:                n.prefix = ""         new = Node(syms.power, [Name("zip"), args], prefix="")        new = Node(syms.power, [Name("list"), ArgList([new])] + trailers)        new.prefix = node.prefix        return new