mirror of
https://github.com/morpheus65535/bazarr
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60 lines
2 KiB
Python
60 lines
2 KiB
Python
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"""
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For the ``future`` package.
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Adds this import line::
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from builtins import XYZ
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for each of the functions XYZ that is used in the module.
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Adds these imports after any other imports (in an initial block of them).
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"""
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from __future__ import unicode_literals
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from lib2to3 import fixer_base
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from lib2to3.pygram import python_symbols as syms
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from lib2to3.fixer_util import Name, Call, in_special_context
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from libfuturize.fixer_util import touch_import_top
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# All builtins are:
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# from future.builtins.iterators import (filter, map, zip)
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# from future.builtins.misc import (ascii, chr, hex, input, isinstance, oct, open, round, super)
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# from future.types import (bytes, dict, int, range, str)
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# We don't need isinstance any more.
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replaced_builtin_fns = '''filter map zip
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ascii chr hex input next oct
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bytes range str raw_input'''.split()
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# This includes raw_input as a workaround for the
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# lib2to3 fixer for raw_input on Py3 (only), allowing
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# the correct import to be included. (Py3 seems to run
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# the fixers the wrong way around, perhaps ignoring the
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# run_order class attribute below ...)
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expression = '|'.join(["name='{0}'".format(name) for name in replaced_builtin_fns])
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class FixFutureBuiltins(fixer_base.BaseFix):
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BM_compatible = True
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run_order = 7
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# Currently we only match uses as a function. This doesn't match e.g.:
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# if isinstance(s, str):
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# ...
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PATTERN = """
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power<
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({0}) trailer< '(' [arglist=any] ')' >
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rest=any* >
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power<
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'map' trailer< '(' [arglist=any] ')' >
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>
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""".format(expression)
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def transform(self, node, results):
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name = results["name"]
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touch_import_top(u'builtins', name.value, node)
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# name.replace(Name(u"input", prefix=name.prefix))
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