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📁 ..
📄 __init__.py(5.02 KB)
📁 __pycache__
📄 fix_UserDict.py(3.75 KB)
📄 fix_absolute_import.py(3.07 KB)
📄 fix_add__future__imports_except_unicode_literals.py(662 B)
📄 fix_basestring.py(394 B)
📄 fix_bytes.py(685 B)
📄 fix_cmp.py(701 B)
📄 fix_division.py(228 B)
📄 fix_division_safe.py(3.38 KB)
📄 fix_execfile.py(921 B)
📄 fix_future_builtins.py(1.98 KB)
📄 fix_future_standard_library.py(733 B)
📄 fix_future_standard_library_urllib.py(1001 B)
📄 fix_metaclass.py(9.34 KB)
📄 fix_next_call.py(3.08 KB)
📄 fix_object.py(407 B)
📄 fix_oldstr_wrap.py(1.19 KB)
📄 fix_order___future__imports.py(829 B)
📄 fix_print.py(3.3 KB)
📄 fix_print_with_import.py(735 B)
📄 fix_raise.py(2.12 KB)
📄 fix_remove_old__future__imports.py(851 B)
📄 fix_unicode_keep_u.py(779 B)
📄 fix_unicode_literals_import.py(367 B)
📄 fix_xrange_with_import.py(479 B)

Editing: fix_raise.py

"""Fixer for 'raise E, V'

From Armin Ronacher's ``python-modernize``.

raise         -> raise
raise E       -> raise E
raise E, V    -> raise E(V)

raise (((E, E'), E''), E'''), V -> raise E(V)

CAVEATS:
1) "raise E, V" will be incorrectly translated if V is an exception
   instance. The correct Python 3 idiom is

raise E from V

but since we can't detect instance-hood by syntax alone and since
   any client code would have to be changed as well, we don't automate
   this.
"""
# Author: Collin Winter, Armin Ronacher

# Local imports
from lib2to3 import pytree, fixer_base
from lib2to3.pgen2 import token
from lib2to3.fixer_util import Name, Call, is_tuple

class FixRaise(fixer_base.BaseFix):

BM_compatible = True
    PATTERN = """
    raise_stmt< 'raise' exc=any [',' val=any] >
    """

def transform(self, node, results):
        syms = self.syms

exc = results["exc"].clone()
        if exc.type == token.STRING:
            msg = "Python 3 does not support string exceptions"
            self.cannot_convert(node, msg)
            return

# Python 2 supports
        #  raise ((((E1, E2), E3), E4), E5), V
        # as a synonym for
        #  raise E1, V
        # Since Python 3 will not support this, we recurse down any tuple
        # literals, always taking the first element.
        if is_tuple(exc):
            while is_tuple(exc):
                # exc.children[1:-1] is the unparenthesized tuple
                # exc.children[1].children[0] is the first element of the tuple
                exc = exc.children[1].children[0].clone()
            exc.prefix = u" "

if "val" not in results:
            # One-argument raise
            new = pytree.Node(syms.raise_stmt, [Name(u"raise"), exc])
            new.prefix = node.prefix
            return new

val = results["val"].clone()
        if is_tuple(val):
            args = [c.clone() for c in val.children[1:-1]]
        else:
            val.prefix = u""
            args = [val]

return pytree.Node(syms.raise_stmt,
                           [Name(u"raise"), Call(exc, args)],
                           prefix=node.prefix)

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Editing: fix_raise.py

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