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ðŸ“„ __init__.py(47 B)
ðŸ“„ __init__.pyc(146 B)
ðŸ“„ __init__.pyo(146 B)
ðŸ“„ fix_apply.py(2.38 KB)
ðŸ“„ fix_apply.pyc(2.07 KB)
ðŸ“„ fix_apply.pyo(2.04 KB)
ðŸ“„ fix_asserts.py(984 B)
ðŸ“„ fix_asserts.pyc(1.56 KB)
ðŸ“„ fix_asserts.pyo(1.56 KB)
ðŸ“„ fix_basestring.py(321 B)
ðŸ“„ fix_basestring.pyc(846 B)
ðŸ“„ fix_basestring.pyo(846 B)
ðŸ“„ fix_buffer.py(591 B)
ðŸ“„ fix_buffer.pyc(1003 B)
ðŸ“„ fix_buffer.pyo(1003 B)
ðŸ“„ fix_dict.py(3.73 KB)
ðŸ“„ fix_dict.pyc(3.73 KB)
ðŸ“„ fix_dict.pyo(3.61 KB)
ðŸ“„ fix_except.py(3.27 KB)
ðŸ“„ fix_except.pyc(2.99 KB)
ðŸ“„ fix_except.pyo(2.99 KB)
ðŸ“„ fix_exec.py(1002 B)
ðŸ“„ fix_exec.pyc(1.44 KB)
ðŸ“„ fix_exec.pyo(1.4 KB)
ðŸ“„ fix_execfile.py(2.01 KB)
ðŸ“„ fix_execfile.pyc(2.1 KB)
ðŸ“„ fix_execfile.pyo(2.06 KB)
ðŸ“„ fix_exitfunc.py(2.44 KB)
ðŸ“„ fix_exitfunc.pyc(2.76 KB)
ðŸ“„ fix_exitfunc.pyo(2.76 KB)
ðŸ“„ fix_filter.py(2.06 KB)
ðŸ“„ fix_filter.pyc(2.25 KB)
ðŸ“„ fix_filter.pyo(2.25 KB)
ðŸ“„ fix_funcattrs.py(645 B)
ðŸ“„ fix_funcattrs.pyc(1.14 KB)
ðŸ“„ fix_funcattrs.pyo(1.14 KB)
ðŸ“„ fix_future.py(547 B)
ðŸ“„ fix_future.pyc(972 B)
ðŸ“„ fix_future.pyo(972 B)
ðŸ“„ fix_getcwdu.py(452 B)
ðŸ“„ fix_getcwdu.pyc(979 B)
ðŸ“„ fix_getcwdu.pyo(979 B)
ðŸ“„ fix_has_key.py(3.15 KB)
ðŸ“„ fix_has_key.pyc(3.16 KB)
ðŸ“„ fix_has_key.pyo(3.13 KB)
ðŸ“„ fix_idioms.py(4.77 KB)
ðŸ“„ fix_idioms.pyc(4.52 KB)
ðŸ“„ fix_idioms.pyo(4.42 KB)
ðŸ“„ fix_import.py(3.18 KB)
ðŸ“„ fix_import.pyc(3.25 KB)
ðŸ“„ fix_import.pyo(3.25 KB)
ðŸ“„ fix_imports.py(5.56 KB)
ðŸ“„ fix_imports.pyc(5.38 KB)
ðŸ“„ fix_imports.pyo(5.38 KB)
ðŸ“„ fix_imports2.py(289 B)
ðŸ“„ fix_imports2.pyc(660 B)
ðŸ“„ fix_imports2.pyo(660 B)
ðŸ“„ fix_input.py(710 B)
ðŸ“„ fix_input.pyc(1.16 KB)
ðŸ“„ fix_input.pyo(1.16 KB)
ðŸ“„ fix_intern.py(1.82 KB)
ðŸ“„ fix_intern.pyc(1.79 KB)
ðŸ“„ fix_intern.pyo(1.79 KB)
ðŸ“„ fix_isinstance.py(1.57 KB)
ðŸ“„ fix_isinstance.pyc(1.85 KB)
ðŸ“„ fix_isinstance.pyo(1.85 KB)
ðŸ“„ fix_itertools.py(1.51 KB)
ðŸ“„ fix_itertools.pyc(1.8 KB)
ðŸ“„ fix_itertools.pyo(1.8 KB)
ðŸ“„ fix_itertools_imports.py(2.04 KB)
ðŸ“„ fix_itertools_imports.pyc(2.02 KB)
ðŸ“„ fix_itertools_imports.pyo(1.98 KB)
ðŸ“„ fix_long.py(477 B)
ðŸ“„ fix_long.pyc(894 B)
ðŸ“„ fix_long.pyo(894 B)
ðŸ“„ fix_map.py(2.99 KB)
ðŸ“„ fix_map.pyc(3.02 KB)
ðŸ“„ fix_map.pyo(3.02 KB)
ðŸ“„ fix_metaclass.py(8.02 KB)
ðŸ“„ fix_metaclass.pyc(6.56 KB)
ðŸ“„ fix_metaclass.pyo(6.52 KB)
ðŸ“„ fix_methodattrs.py(615 B)
ðŸ“„ fix_methodattrs.pyc(1.16 KB)
ðŸ“„ fix_methodattrs.pyo(1.16 KB)
ðŸ“„ fix_ne.py(573 B)
ðŸ“„ fix_ne.pyc(1.03 KB)
ðŸ“„ fix_ne.pyo(1.03 KB)
ðŸ“„ fix_next.py(3.11 KB)
ðŸ“„ fix_next.pyc(3.57 KB)
ðŸ“„ fix_next.pyo(3.54 KB)
ðŸ“„ fix_nonzero.py(598 B)
ðŸ“„ fix_nonzero.pyc(1.11 KB)
ðŸ“„ fix_nonzero.pyo(1.11 KB)
ðŸ“„ fix_numliterals.py(773 B)
ðŸ“„ fix_numliterals.pyc(1.29 KB)
ðŸ“„ fix_numliterals.pyo(1.29 KB)
ðŸ“„ fix_operator.py(3.39 KB)
ðŸ“„ fix_operator.pyc(5.22 KB)
ðŸ“„ fix_operator.pyo(5.22 KB)
ðŸ“„ fix_paren.py(1.2 KB)
ðŸ“„ fix_paren.pyc(1.56 KB)
ðŸ“„ fix_paren.pyo(1.56 KB)
ðŸ“„ fix_print.py(2.8 KB)
ðŸ“„ fix_print.pyc(2.73 KB)
ðŸ“„ fix_print.pyo(2.63 KB)
ðŸ“„ fix_raise.py(2.87 KB)
ðŸ“„ fix_raise.pyc(2.49 KB)
ðŸ“„ fix_raise.pyo(2.49 KB)
ðŸ“„ fix_raw_input.py(455 B)
ðŸ“„ fix_raw_input.pyc(989 B)
ðŸ“„ fix_raw_input.pyo(989 B)
ðŸ“„ fix_reduce.py(839 B)
ðŸ“„ fix_reduce.pyc(1.28 KB)
ðŸ“„ fix_reduce.pyo(1.28 KB)
ðŸ“„ fix_renames.py(2.17 KB)
ðŸ“„ fix_renames.pyc(2.5 KB)
ðŸ“„ fix_renames.pyo(2.5 KB)
ðŸ“„ fix_repr.py(614 B)
ðŸ“„ fix_repr.pyc(1.04 KB)
ðŸ“„ fix_repr.pyo(1.04 KB)
ðŸ“„ fix_set_literal.py(1.66 KB)
ðŸ“„ fix_set_literal.pyc(2.01 KB)
ðŸ“„ fix_set_literal.pyo(2.01 KB)
ðŸ“„ fix_standarderror.py(450 B)
ðŸ“„ fix_standarderror.pyc(906 B)
ðŸ“„ fix_standarderror.pyo(906 B)
ðŸ“„ fix_sys_exc.py(1.01 KB)
ðŸ“„ fix_sys_exc.pyc(1.73 KB)
ðŸ“„ fix_sys_exc.pyo(1.73 KB)
ðŸ“„ fix_throw.py(1.55 KB)
ðŸ“„ fix_throw.pyc(2 KB)
ðŸ“„ fix_throw.pyo(2 KB)
ðŸ“„ fix_tuple_params.py(5.45 KB)
ðŸ“„ fix_tuple_params.pyc(5.46 KB)
ðŸ“„ fix_tuple_params.pyo(5.46 KB)
ðŸ“„ fix_types.py(1.77 KB)
ðŸ“„ fix_types.pyc(2.2 KB)
ðŸ“„ fix_types.pyo(2.2 KB)
ðŸ“„ fix_unicode.py(1.24 KB)
ðŸ“„ fix_unicode.pyc(1.74 KB)
ðŸ“„ fix_unicode.pyo(1.74 KB)
ðŸ“„ fix_urllib.py(8.19 KB)
ðŸ“„ fix_urllib.pyc(7.11 KB)
ðŸ“„ fix_urllib.pyo(7.11 KB)
ðŸ“„ fix_ws_comma.py(1.07 KB)
ðŸ“„ fix_ws_comma.pyc(1.4 KB)
ðŸ“„ fix_ws_comma.pyo(1.4 KB)
ðŸ“„ fix_xrange.py(2.64 KB)
ðŸ“„ fix_xrange.pyc(3.12 KB)
ðŸ“„ fix_xrange.pyo(3.12 KB)
ðŸ“„ fix_xreadlines.py(690 B)
ðŸ“„ fix_xreadlines.pyc(1.18 KB)
ðŸ“„ fix_xreadlines.pyo(1.18 KB)
ðŸ“„ fix_zip.py(904 B)
ðŸ“„ fix_zip.pyc(1.37 KB)
ðŸ“„ fix_zip.pyo(1.37 KB)

Editing: fix_tuple_params.py

"""Fixer for function definitions with tuple parameters.

def func(((a, b), c), d):
    ...

def func(x, d):
    ((a, b), c) = x
    ...

It will also support lambdas:

lambda (x, y): x + y -> lambda t: t[0] + t[1]

# The parens are a syntax error in Python 3
    lambda (x): x + y -> lambda x: x + y
"""
# Author: Collin Winter

# Local imports
from .. import pytree
from ..pgen2 import token
from .. import fixer_base
from ..fixer_util import Assign, Name, Newline, Number, Subscript, syms

def is_docstring(stmt):
    return isinstance(stmt, pytree.Node) and \
           stmt.children[0].type == token.STRING

class FixTupleParams(fixer_base.BaseFix):
    run_order = 4 #use a lower order since lambda is part of other
                  #patterns
    BM_compatible = True

PATTERN = """
              funcdef< 'def' any parameters< '(' args=any ')' >
                       ['->' any] ':' suite=any+ >
              |
              lambda=
              lambdef< 'lambda' args=vfpdef< '(' inner=any ')' >
                       ':' body=any
              >
              """

def transform(self, node, results):
        if "lambda" in results:
            return self.transform_lambda(node, results)

new_lines = []
        suite = results["suite"]
        args = results["args"]
        # This crap is so "def foo(...): x = 5; y = 7" is handled correctly.
        # TODO(cwinter): suite-cleanup
        if suite[0].children[1].type == token.INDENT:
            start = 2
            indent = suite[0].children[1].value
            end = Newline()
        else:
            start = 0
            indent = u"; "
            end = pytree.Leaf(token.INDENT, u"")

# We need access to self for new_name(), and making this a method
        #  doesn't feel right. Closing over self and new_lines makes the
        #  code below cleaner.
        def handle_tuple(tuple_arg, add_prefix=False):
            n = Name(self.new_name())
            arg = tuple_arg.clone()
            arg.prefix = u""
            stmt = Assign(arg, n.clone())
            if add_prefix:
                n.prefix = u" "
            tuple_arg.replace(n)
            new_lines.append(pytree.Node(syms.simple_stmt,
                                         [stmt, end.clone()]))

if args.type == syms.tfpdef:
            handle_tuple(args)
        elif args.type == syms.typedargslist:
            for i, arg in enumerate(args.children):
                if arg.type == syms.tfpdef:
                    # Without add_prefix, the emitted code is correct,
                    #  just ugly.
                    handle_tuple(arg, add_prefix=(i > 0))

if not new_lines:
            return

# This isn't strictly necessary, but it plays nicely with other fixers.
        # TODO(cwinter) get rid of this when children becomes a smart list
        for line in new_lines:
            line.parent = suite[0]

# TODO(cwinter) suite-cleanup
        after = start
        if start == 0:
            new_lines[0].prefix = u" "
        elif is_docstring(suite[0].children[start]):
            new_lines[0].prefix = indent
            after = start + 1

for line in new_lines:
            line.parent = suite[0]
        suite[0].children[after:after] = new_lines
        for i in range(after+1, after+len(new_lines)+1):
            suite[0].children[i].prefix = indent
        suite[0].changed()

def transform_lambda(self, node, results):
        args = results["args"]
        body = results["body"]
        inner = simplify_args(results["inner"])

# Replace lambda ((((x)))): x  with lambda x: x
        if inner.type == token.NAME:
            inner = inner.clone()
            inner.prefix = u" "
            args.replace(inner)
            return

params = find_params(args)
        to_index = map_to_index(params)
        tup_name = self.new_name(tuple_name(params))

new_param = Name(tup_name, prefix=u" ")
        args.replace(new_param.clone())
        for n in body.post_order():
            if n.type == token.NAME and n.value in to_index:
                subscripts = [c.clone() for c in to_index[n.value]]
                new = pytree.Node(syms.power,
                                  [new_param.clone()] + subscripts)
                new.prefix = n.prefix
                n.replace(new)

### Helper functions for transform_lambda()

def simplify_args(node):
    if node.type in (syms.vfplist, token.NAME):
        return node
    elif node.type == syms.vfpdef:
        # These look like vfpdef< '(' x ')' > where x is NAME
        # or another vfpdef instance (leading to recursion).
        while node.type == syms.vfpdef:
            node = node.children[1]
        return node
    raise RuntimeError("Received unexpected node %s" % node)

def find_params(node):
    if node.type == syms.vfpdef:
        return find_params(node.children[1])
    elif node.type == token.NAME:
        return node.value
    return [find_params(c) for c in node.children if c.type != token.COMMA]

def map_to_index(param_list, prefix=[], d=None):
    if d is None:
        d = {}
    for i, obj in enumerate(param_list):
        trailer = [Subscript(Number(unicode(i)))]
        if isinstance(obj, list):
            map_to_index(obj, trailer, d=d)
        else:
            d[obj] = prefix + trailer
    return d

def tuple_name(param_list):
    l = []
    for obj in param_list:
        if isinstance(obj, list):
            l.append(tuple_name(obj))
        else:
            l.append(obj)
    return u"_".join(l)

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