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PATH: opt / alt / python37 / lib / python3.7 / site-packages / libfuturize / fixes

"""
For the ``future`` package.

Adds this import line:

from past.builtins import str as oldstr

at the top and wraps any unadorned string literals 'abc' or explicit byte-string
literals b'abc' in oldstr() calls so the code has the same behaviour on Py3 as
on Py2.6/2.7.
"""

from __future__ import unicode_literals
import re
from lib2to3 import fixer_base
from lib2to3.pgen2 import token
from lib2to3.fixer_util import syms
from libfuturize.fixer_util import (future_import, touch_import_top,
                                    wrap_in_fn_call)

_literal_re = re.compile(r"[^uUrR]?[\'\"]")

class FixOldstrWrap(fixer_base.BaseFix):
    BM_compatible = True
    PATTERN = "STRING"

def transform(self, node, results):
        if node.type == token.STRING:
            touch_import_top(u'past.types', u'oldstr', node)
            if _literal_re.match(node.value):
                new = node.clone()
                # Strip any leading space or comments:
                # TODO: check: do we really want to do this?
                new.prefix = u''
                new.value = u'b' + new.value
                wrapped = wrap_in_fn_call("oldstr", [new], prefix=node.prefix)
                return wrapped

[+] __pycache__
[-] fix_raise.py [edit]
[-] fix_next_call.py [edit]
[-] __init__.py [edit]
[-] fix_print.py [edit]
[-] fix_metaclass.py [edit]
[-] fix_cmp.py [edit]
[+] ..
[-] fix_future_builtins.py [edit]
[-] fix_unicode_literals_import.py [edit]
[-] fix_remove_old__future__imports.py [edit]
[-] fix_future_standard_library_urllib.py [edit]
[-] fix_bytes.py [edit]
[-] fix_unicode_keep_u.py [edit]
[-] fix_future_standard_library.py [edit]
[-] fix_order___future__imports.py [edit]
[-] fix_oldstr_wrap.py [edit]
[-] fix_UserDict.py [edit]
[-] fix_xrange_with_import.py [edit]
[-] fix_division.py [edit]
[-] fix_print_with_import.py [edit]
[-] fix_basestring.py [edit]
[-] fix_absolute_import.py [edit]
[-] fix_object.py [edit]
[-] fix_division_safe.py [edit]
[-] fix_add__future__imports_except_unicode_literals.py [edit]
[-] fix_execfile.py [edit]