load_build(UnpicklerObject *self)
{
    PyObject *state, *inst, *slotstate;
    PyObject *setstate;
    int status = 0;
    _Py_IDENTIFIER(__setstate__);

    /* Stack is ... instance, state.  We want to leave instance at
     * the stack top, possibly mutated via instance.__setstate__(state).

            

Reported by FlawFinder.

              
    inst = self->stack->data[Py_SIZE(self->stack) - 1];

    if (_PyObject_LookupAttrId(inst, &PyId___setstate__, &setstate) < 0) {
        Py_DECREF(state);
        return -1;
    }
    if (setstate != NULL) {
        PyObject *result;

            

Reported by FlawFinder.

                      Py_DECREF(state);
        return -1;
    }
    if (setstate != NULL) {
        PyObject *result;

        /* The explicit __setstate__ is responsible for everything. */
        result = _Pickle_FastCall(setstate, state);
        Py_DECREF(setstate);

            

Reported by FlawFinder.

                      PyObject *result;

        /* The explicit __setstate__ is responsible for everything. */
        result = _Pickle_FastCall(setstate, state);
        Py_DECREF(setstate);
        if (result == NULL)
            return -1;
        Py_DECREF(result);
        return 0;

            

Reported by FlawFinder.

              
        /* The explicit __setstate__ is responsible for everything. */
        result = _Pickle_FastCall(setstate, state);
        Py_DECREF(setstate);
        if (result == NULL)
            return -1;
        Py_DECREF(result);
        return 0;
    }

            

Reported by FlawFinder.

                  for (size_t i = 0; i < self->mt_allocated; i++) {
        Py_XINCREF(self->mt_table[i].me_key);
    }
    memcpy(new->mt_table, self->mt_table,
           sizeof(PyMemoEntry) * self->mt_allocated);

    return new;
}


            

Reported by FlawFinder.

                      }
    }
    else {
        memcpy(buffer + self->output_len, s, data_len);
    }
    self->output_len += data_len;
    return data_len;
}


            

Reported by FlawFinder.

                  Py_ssize_t in_buffer = self->input_len - self->next_read_idx;
    if (in_buffer > 0) {
        Py_ssize_t to_read = Py_MIN(in_buffer, n);
        memcpy(buf, self->input_buffer + self->next_read_idx, to_read);
        self->next_read_idx += to_read;
        buf += to_read;
        n -= to_read;
        if (n == 0) {
            /* Entire read was satisfied from buffer */

            

Reported by FlawFinder.

                          Py_DECREF(data);
            return bad_readline();
        }
        memcpy(buf, PyBytes_AS_STRING(data), n);
        Py_DECREF(data);
        return n;
    }

    /* Call readinto() into user buffer */

            

Reported by FlawFinder.

                      return -1;
    }

    memcpy(input_line, line, len);
    input_line[len] = '\0';
    self->input_line = input_line;
    *result = self->input_line;
    return len;
}

            

Reported by FlawFinder.

                          test(result)
        except KeyboardInterrupt:
            self.fail("KeyboardInterrupt not handled")
        self.assertTrue(result.breakCaught)


    def testSecondInterrupt(self):
        # Can't use skipIf decorator because the signal handler may have
        # been changed after defining this method.

            

Reported by Pylint.

                          pass
        else:
            self.fail("Second KeyboardInterrupt not raised")
        self.assertTrue(result.breakCaught)


    def testTwoResults(self):
        unittest.installHandler()


            

Reported by Pylint.

              
    def tearDown(self):
        signal.signal(signal.SIGINT, self._default_handler)
        unittest.signals._results = weakref.WeakKeyDictionary()
        unittest.signals._interrupt_handler = None


    def testInstallHandler(self):
        default_handler = signal.getsignal(signal.SIGINT)

            

Reported by Pylint.

                  def tearDown(self):
        signal.signal(signal.SIGINT, self._default_handler)
        unittest.signals._results = weakref.WeakKeyDictionary()
        unittest.signals._interrupt_handler = None


    def testInstallHandler(self):
        default_handler = signal.getsignal(signal.SIGINT)
        unittest.installHandler()

            

Reported by Pylint.

                      except KeyboardInterrupt:
            self.fail("KeyboardInterrupt not handled")

        self.assertTrue(unittest.signals._interrupt_handler.called)

    def testRegisterResult(self):
        result = unittest.TestResult()
        self.assertNotIn(result, unittest.signals._results)


            

Reported by Pylint.

              
    def testRegisterResult(self):
        result = unittest.TestResult()
        self.assertNotIn(result, unittest.signals._results)

        unittest.registerResult(result)
        try:
            self.assertIn(result, unittest.signals._results)
        finally:

            

Reported by Pylint.

              
        unittest.registerResult(result)
        try:
            self.assertIn(result, unittest.signals._results)
        finally:
            unittest.removeResult(result)

    def testInterruptCaught(self):
        default_handler = signal.getsignal(signal.SIGINT)

            

Reported by Pylint.

              
        result3 = unittest.TestResult()

        def test(result):
            pid = os.getpid()
            os.kill(pid, signal.SIGINT)

        try:
            test(result)

            

Reported by Pylint.

                      runner = unittest.TextTestRunner(stream=io.StringIO())

        result = runner.run(unittest.TestSuite())
        self.assertIn(result, unittest.signals._results)

    def testWeakReferences(self):
        # Calling registerResult on a result should not keep it alive
        result = unittest.TestResult()
        unittest.registerResult(result)

            

Reported by Pylint.

                              return result

        class Program(unittest.TestProgram):
            def __init__(self, catchbreak):
                self.exit = False
                self.verbosity = verbosity
                self.failfast = failfast
                self.catchbreak = catchbreak
                self.tb_locals = False

            

Reported by Pylint.

                      usage("at least one file argument is required")
        return 2
    if args[1:]:
        sys.stderr.write("%s: extra file arguments ignored\n", sys.argv[0])
    warnings = readwarnings(args[0])
    if warnings is None:
        return 1
    files = list(warnings.keys())
    if not files:

            

Reported by Pylint.

                  except getopt.error as msg:
        usage(msg)
        return 2
    for o, a in opts:
        if o == "-h":
            print(__doc__)
            return
        if o == "-m":
            global multi_ok

            

Reported by Pylint.

                          print(__doc__)
            return
        if o == "-m":
            global multi_ok
            multi_ok = 1
    if not args:
        usage("at least one file argument is required")
        return 2
    if args[1:]:

            

Reported by Pylint.

                      print("No classic division warnings read from", args[0])
        return
    files.sort()
    exit = None
    for filename in files:
        x = process(filename, warnings[filename])
        exit = exit or x
    return exit


            

Reported by Pylint.

                                  sys.stderr.write("Warning: ignored input " + line)
                continue
            filename, lineno, what = m.groups()
            list = warnings.get(filename)
            if list is None:
                warnings[filename] = list = []
            list.append((int(lineno), sys.intern(what)))
    return warnings


            

Reported by Pylint.

                          list.append((int(lineno), sys.intern(what)))
    return warnings

def process(filename, list):
    print("-"*70)
    assert list # if this fails, readwarnings() is broken
    try:
        fp = open(filename)
    except IOError as msg:

            

Reported by Pylint.

                      index = 0 # list[:index] has been processed, list[index:] is still to do
        g = tokenize.generate_tokens(f.readline)
        while 1:
            startlineno, endlineno, slashes = lineinfo = scanline(g)
            if startlineno is None:
                break
            assert startlineno <= endlineno is not None
            orphans = []
            while index < len(list) and list[index][0] < startlineno:

            

Reported by Pylint.

                              intlong = []
                floatcomplex = []
                bad = []
                for lineno, what in warnings:
                    if what in ("int", "long"):
                        intlong.append(what)
                    elif what in ("float", "complex"):
                        floatcomplex.append(what)
                    else:

            

Reported by Pylint.

              
def report(slashes, message):
    lastrow = None
    for (row, col), line in slashes:
        if row != lastrow:
            print("*** %s on line %d:" % (message, row))
            print("*", chop(line))
            lastrow = row


            

Reported by Pylint.

                          lastrow = row

class FileContext:
    def __init__(self, fp, window=5, lineno=1):
        self.fp = fp
        self.window = 5
        self.lineno = 1
        self.eoflookahead = 0
        self.lookahead = []

            

Reported by Pylint.

                      q_cmd = r"rpm -q --qf '%s %s\n' --specfile '%s'" % (
            src_rpm, non_src_rpm, spec_path)

        out = os.popen(q_cmd)
        try:
            binary_rpms = []
            source_rpm = None
            while True:
                line = out.readline()

            

Reported by Bandit.

                      self.ensure_string_list('doc_files')
        if isinstance(self.doc_files, list):
            for readme in ('README', 'README.txt'):
                if os.path.exists(readme) and readme not in self.doc_files:
                    self.doc_files.append(readme)

        self.ensure_string('release', "1")
        self.ensure_string('serial')   # should it be an int?


            

Reported by Pylint.

              from distutils.core import Command
from distutils.debug import DEBUG
from distutils.file_util import write_file
from distutils.errors import *
from distutils.sysconfig import get_python_version
from distutils import log

class bdist_rpm(Command):


            

Reported by Pylint.

              from distutils.core import Command
from distutils.debug import DEBUG
from distutils.file_util import write_file
from distutils.errors import *
from distutils.sysconfig import get_python_version
from distutils import log

class bdist_rpm(Command):


            

Reported by Pylint.

              from distutils.core import Command
from distutils.debug import DEBUG
from distutils.file_util import write_file
from distutils.errors import *
from distutils.sysconfig import get_python_version
from distutils import log

class bdist_rpm(Command):


            

Reported by Pylint.

              from distutils.core import Command
from distutils.debug import DEBUG
from distutils.file_util import write_file
from distutils.errors import *
from distutils.sysconfig import get_python_version
from distutils import log

class bdist_rpm(Command):


            

Reported by Pylint.

              from distutils.core import Command
from distutils.debug import DEBUG
from distutils.file_util import write_file
from distutils.errors import *
from distutils.sysconfig import get_python_version
from distutils import log

class bdist_rpm(Command):


            

Reported by Pylint.

              from distutils.core import Command
from distutils.debug import DEBUG
from distutils.file_util import write_file
from distutils.errors import *
from distutils.sysconfig import get_python_version
from distutils import log

class bdist_rpm(Command):


            

Reported by Pylint.

              from distutils.core import Command
from distutils.debug import DEBUG
from distutils.file_util import write_file
from distutils.errors import *
from distutils.sysconfig import get_python_version
from distutils import log

class bdist_rpm(Command):


            

Reported by Pylint.

              from distutils.core import Command
from distutils.debug import DEBUG
from distutils.file_util import write_file
from distutils.errors import *
from distutils.sysconfig import get_python_version
from distutils import log

class bdist_rpm(Command):


            

Reported by Pylint.

                      self.assertEqual(comp.exes['linker_so'],
                         ('env_ldshared --env-ldflags --env-cflags'
                          ' --env-cppflags'))
        self.assertEqual(comp.shared_lib_extension, 'sc_shutil_suffix')

        del os.environ['AR']
        del os.environ['CC']
        del os.environ['CPP']
        del os.environ['CXX']

            

Reported by Pylint.

                                       'sc_cc')
        self.assertEqual(comp.exes['linker_so'],
                         'sc_ldshared')
        self.assertEqual(comp.shared_lib_extension, 'sc_shutil_suffix')

    def test_parse_makefile_base(self):
        self.makefile = TESTFN
        fd = open(self.makefile, 'w')
        try:

            

Reported by Pylint.

                      self.assertTrue(os.path.isfile(config_h), config_h)

    def test_get_python_lib(self):
        # XXX doesn't work on Linux when Python was never installed before
        #self.assertTrue(os.path.isdir(lib_dir), lib_dir)
        # test for pythonxx.lib?
        self.assertNotEqual(sysconfig.get_python_lib(),
                            sysconfig.get_python_lib(prefix=TESTFN))


            

Reported by Pylint.

                          # should be a full source checkout.
            Python_h = os.path.join(srcdir, 'Include', 'Python.h')
            self.assertTrue(os.path.exists(Python_h), Python_h)
            self.assertTrue(sysconfig._is_python_source_dir(srcdir))
        elif os.name == 'posix':
            self.assertEqual(
                os.path.dirname(sysconfig.get_makefile_filename()),
                srcdir)


            

Reported by Pylint.

                          compiler_type = 'unix'

            def set_executables(self, **kw):
                self.exes = kw

        sysconfig_vars = {
            'AR': 'sc_ar',
            'CC': 'sc_cc',
            'CXX': 'sc_cxx',

            

Reported by Pylint.

                      comp = compiler()
        with contextlib.ExitStack() as cm:
            for key, value in sysconfig_vars.items():
                cm.enter_context(swap_item(sysconfig._config_vars, key, value))
            sysconfig.customize_compiler(comp)

        return comp

    @unittest.skipUnless(get_default_compiler() == 'unix',

            

Reported by Pylint.

                  @unittest.skipIf(sysconfig.get_config_var('EXT_SUFFIX') is None,
                     'EXT_SUFFIX required for this test')
    def test_SO_in_vars(self):
        vars = sysconfig.get_config_vars()
        self.assertIsNotNone(vars['SO'])
        self.assertEqual(vars['SO'], vars['EXT_SUFFIX'])

    def test_customize_compiler_before_get_config_vars(self):
        # Issue #21923: test that a Distribution compiler

            

Reported by Pylint.

                              stdout=subprocess.PIPE,
                stderr=subprocess.STDOUT,
                universal_newlines=True)
        outs, errs = p.communicate()
        self.assertEqual(0, p.returncode, "Subprocess failed: " + outs)


def test_suite():
    suite = unittest.TestSuite()

            

Reported by Pylint.

              import contextlib
import os
import shutil
import subprocess
import sys
import textwrap
import unittest

from distutils import sysconfig

            

Reported by Bandit.

              from test.support.warnings_helper import check_warnings


class SysconfigTestCase(support.EnvironGuard, unittest.TestCase):
    def setUp(self):
        super(SysconfigTestCase, self).setUp()
        self.makefile = None

    def tearDown(self):

            

Reported by Pylint.

                              "b" not in mode and encoding is None and openhook is None):
            import warnings
            warnings.warn("'encoding' argument not specified.",
                          EncodingWarning, 2)

        # restrict mode argument to reading modes
        if mode not in ('r', 'rU', 'U', 'rb'):
            raise ValueError("FileInput opening mode must be one of "
                             "'r', 'rU', 'U' and 'rb'")

            

Reported by Pylint.

                          self.nextfile()
            # repeat with next file

    def _readline(self):
        if not self._files:
            if 'b' in self._mode:
                return b''
            else:
                return ''

            

Reported by Pylint.

                              else:
                    mode = os.O_CREAT | os.O_WRONLY | os.O_TRUNC
                    if hasattr(os, 'O_BINARY'):
                        mode |= os.O_BINARY

                    fd = os.open(self._filename, mode, perm)
                    self._output = os.fdopen(fd, self._write_mode, encoding=encoding)
                    try:
                        os.chmod(self._filename, perm)

            

Reported by Pylint.

              
_state = None

def input(files=None, inplace=False, backup="", *, mode="r", openhook=None,
          encoding=None, errors=None):
    """Return an instance of the FileInput class, which can be iterated.

    The parameters are passed to the constructor of the FileInput class.
    The returned instance, in addition to being an iterator,

            

Reported by Pylint.

                  The returned instance, in addition to being an iterator,
    keeps global state for the functions of this module,.
    """
    global _state
    if _state and _state._file:
        raise RuntimeError("input() already active")
    _state = FileInput(files, inplace, backup, mode=mode, openhook=openhook,
                       encoding=encoding, errors=errors)
    return _state

            

Reported by Pylint.

                  keeps global state for the functions of this module,.
    """
    global _state
    if _state and _state._file:
        raise RuntimeError("input() already active")
    _state = FileInput(files, inplace, backup, mode=mode, openhook=openhook,
                       encoding=encoding, errors=errors)
    return _state


            

Reported by Pylint.

              
def close():
    """Close the sequence."""
    global _state
    state = _state
    _state = None
    if state:
        state.close()


            

Reported by Pylint.

                  def __enter__(self):
        return self

    def __exit__(self, type, value, traceback):
        self.close()

    def __iter__(self):
        return self


            

Reported by Pylint.

                      try:
            return self.__next__()
        except StopIteration:
            raise IndexError("end of input reached")

    def nextfile(self):
        savestdout = self._savestdout
        self._savestdout = None
        if savestdout:

            

Reported by Pylint.

                  __class_getitem__ = classmethod(GenericAlias)


def hook_compressed(filename, mode, *, encoding=None, errors=None):
    if encoding is None:  # EncodingWarning is emitted in FileInput() already.
        encoding = "locale"
    ext = os.path.splitext(filename)[1]
    if ext == '.gz':
        import gzip

            

Reported by Pylint.

              # Simple interface

def run(statement, filename=None, sort=-1):
    return _pyprofile._Utils(Profile).run(statement, filename, sort)

def runctx(statement, globals, locals, filename=None, sort=-1):
    return _pyprofile._Utils(Profile).runctx(statement, globals, locals,
                                             filename, sort)


            

Reported by Pylint.

              def run(statement, filename=None, sort=-1):
    return _pyprofile._Utils(Profile).run(statement, filename, sort)

def runctx(statement, globals, locals, filename=None, sort=-1):
    return _pyprofile._Utils(Profile).runctx(statement, globals, locals,
                                             filename, sort)

run.__doc__ = _pyprofile.run.__doc__
runctx.__doc__ = _pyprofile.runctx.__doc__

            

Reported by Pylint.

              def run(statement, filename=None, sort=-1):
    return _pyprofile._Utils(Profile).run(statement, filename, sort)

def runctx(statement, globals, locals, filename=None, sort=-1):
    return _pyprofile._Utils(Profile).runctx(statement, globals, locals,
                                             filename, sort)

run.__doc__ = _pyprofile.run.__doc__
runctx.__doc__ = _pyprofile.runctx.__doc__

            

Reported by Pylint.

                  return _pyprofile._Utils(Profile).run(statement, filename, sort)

def runctx(statement, globals, locals, filename=None, sort=-1):
    return _pyprofile._Utils(Profile).runctx(statement, globals, locals,
                                             filename, sort)

run.__doc__ = _pyprofile.run.__doc__
runctx.__doc__ = _pyprofile.runctx.__doc__


            

Reported by Pylint.

              
    def snapshot_stats(self):
        entries = self.getstats()
        self.stats = {}
        callersdicts = {}
        # call information
        for entry in entries:
            func = label(entry.code)
            nc = entry.callcount         # ncalls column of pstats (before '/')

            

Reported by Pylint.

              
    def run(self, cmd):
        import __main__
        dict = __main__.__dict__
        return self.runctx(cmd, dict, dict)

    def runctx(self, cmd, globals, locals):
        self.enable()
        try:

            

Reported by Pylint.

                      dict = __main__.__dict__
        return self.runctx(cmd, dict, dict)

    def runctx(self, cmd, globals, locals):
        self.enable()
        try:
            exec(cmd, globals, locals)
        finally:
            self.disable()

            

Reported by Pylint.

                      dict = __main__.__dict__
        return self.runctx(cmd, dict, dict)

    def runctx(self, cmd, globals, locals):
        self.enable()
        try:
            exec(cmd, globals, locals)
        finally:
            self.disable()

            

Reported by Pylint.

                  def runctx(self, cmd, globals, locals):
        self.enable()
        try:
            exec(cmd, globals, locals)
        finally:
            self.disable()
        return self

    # This method is more useful to profile a single function call.

            

Reported by Pylint.

                  def runctx(self, cmd, globals, locals):
        self.enable()
        try:
            exec(cmd, globals, locals)
        finally:
            self.disable()
        return self

    # This method is more useful to profile a single function call.

            

Reported by Bandit.

                      # working directory. Create a temporary working directory to cleanup
        # everything at the end of the test.
        change_cwd = os_helper.change_cwd(self.tmp_dir)
        change_cwd.__enter__()
        self.addCleanup(change_cwd.__exit__, None, None, None)

    def tearDown(self):
        import site
        site.USER_BASE = self.old_user_base

            

Reported by Pylint.

                      # everything at the end of the test.
        change_cwd = os_helper.change_cwd(self.tmp_dir)
        change_cwd.__enter__()
        self.addCleanup(change_cwd.__exit__, None, None, None)

    def tearDown(self):
        import site
        site.USER_BASE = self.old_user_base
        from distutils.command import build_ext

            

Reported by Pylint.

                      # check_extensions_list adds in ext the values passed
        # when they are in ('include_dirs', 'library_dirs', 'libraries'
        # 'extra_objects', 'extra_compile_args', 'extra_link_args')
        self.assertEqual(ext.libraries, 'foo')
        self.assertFalse(hasattr(ext, 'some'))

        # 'macros' element of build info dict must be 1- or 2-tuple
        exts = [('foo.bar', {'sources': [''], 'libraries': 'foo',
                'some': 'bar', 'macros': [('1', '2', '3'), 'foo']})]

            

Reported by Pylint.

              
        exts[0][1]['macros'] = [('1', '2'), ('3',)]
        cmd.check_extensions_list(exts)
        self.assertEqual(exts[0].undef_macros, ['3'])
        self.assertEqual(exts[0].define_macros, [('1', '2')])

    def test_get_source_files(self):
        modules = [Extension('foo', ['xxx'], optional=False)]
        dist = Distribution({'name': 'xx', 'ext_modules': modules})

            

Reported by Pylint.

                      exts[0][1]['macros'] = [('1', '2'), ('3',)]
        cmd.check_extensions_list(exts)
        self.assertEqual(exts[0].undef_macros, ['3'])
        self.assertEqual(exts[0].define_macros, [('1', '2')])

    def test_get_source_files(self):
        modules = [Extension('foo', ['xxx'], optional=False)]
        dist = Distribution({'name': 'xx', 'ext_modules': modules})
        cmd = self.build_ext(dist)

            

Reported by Pylint.

                      import site
        self.old_user_base = site.USER_BASE
        site.USER_BASE = self.mkdtemp()
        from distutils.command import build_ext
        build_ext.USER_BASE = site.USER_BASE
        self.old_config_vars = dict(sysconfig._config_vars)

        # bpo-30132: On Windows, a .pdb file may be created in the current
        # working directory. Create a temporary working directory to cleanup

            

Reported by Pylint.

                      import site
        self.old_user_base = site.USER_BASE
        site.USER_BASE = self.mkdtemp()
        from distutils.command import build_ext
        build_ext.USER_BASE = site.USER_BASE
        self.old_config_vars = dict(sysconfig._config_vars)

        # bpo-30132: On Windows, a .pdb file may be created in the current
        # working directory. Create a temporary working directory to cleanup

            

Reported by Pylint.

                      site.USER_BASE = self.mkdtemp()
        from distutils.command import build_ext
        build_ext.USER_BASE = site.USER_BASE
        self.old_config_vars = dict(sysconfig._config_vars)

        # bpo-30132: On Windows, a .pdb file may be created in the current
        # working directory. Create a temporary working directory to cleanup
        # everything at the end of the test.
        change_cwd = os_helper.change_cwd(self.tmp_dir)

            

Reported by Pylint.

                  def tearDown(self):
        import site
        site.USER_BASE = self.old_user_base
        from distutils.command import build_ext
        build_ext.USER_BASE = self.old_user_base
        sysconfig._config_vars.clear()
        sysconfig._config_vars.update(self.old_config_vars)
        super(BuildExtTestCase, self).tearDown()


            

Reported by Pylint.

                  def tearDown(self):
        import site
        site.USER_BASE = self.old_user_base
        from distutils.command import build_ext
        build_ext.USER_BASE = self.old_user_base
        sysconfig._config_vars.clear()
        sysconfig._config_vars.update(self.old_config_vars)
        super(BuildExtTestCase, self).tearDown()


            

Reported by Pylint.

              
    def test_init(self):
        for kw in 'self', 'other', 'iterable':
            self.assertEqual(list(collections.UserDict(**{kw: 42}).items()),
                             [(kw, 42)])
        self.assertEqual(list(collections.UserDict({}, dict=42).items()),
                         [('dict', 42)])
        self.assertEqual(list(collections.UserDict({}, dict=None).items()),
                         [('dict', None)])

            

Reported by Pylint.

                      for kw in 'self', 'other', 'iterable':
            self.assertEqual(list(collections.UserDict(**{kw: 42}).items()),
                             [(kw, 42)])
        self.assertEqual(list(collections.UserDict({}, dict=42).items()),
                         [('dict', 42)])
        self.assertEqual(list(collections.UserDict({}, dict=None).items()),
                         [('dict', None)])
        self.assertEqual(list(collections.UserDict(dict={'a': 42}).items()),
                         [('dict', {'a': 42})])

            

Reported by Pylint.

                                           [(kw, 42)])
        self.assertEqual(list(collections.UserDict({}, dict=42).items()),
                         [('dict', 42)])
        self.assertEqual(list(collections.UserDict({}, dict=None).items()),
                         [('dict', None)])
        self.assertEqual(list(collections.UserDict(dict={'a': 42}).items()),
                         [('dict', {'a': 42})])
        self.assertRaises(TypeError, collections.UserDict, 42)
        self.assertRaises(TypeError, collections.UserDict, (), ())

            

Reported by Pylint.

                                               "{'two': 2, 'one': 1}"))

        # Test rich comparison and __len__
        all = [d0, d1, d2, u, u0, u1, u2, uu, uu0, uu1, uu2]
        for a in all:
            for b in all:
                self.assertEqual(a == b, len(a) == len(b))

        # Test __getitem__

            

Reported by Pylint.

              # Check every path through every method of UserDict

from test import mapping_tests
import unittest
import collections

d0 = {}
d1 = {"one": 1}
d2 = {"one": 1, "two": 2}

            

Reported by Pylint.

              d4 = {"one": None, "two": None}
d5 = {"one": 1, "two": 1}

class UserDictTest(mapping_tests.TestHashMappingProtocol):
    type2test = collections.UserDict

    def test_all(self):
        # Test constructors
        u = collections.UserDict()

            

Reported by Pylint.

              class UserDictTest(mapping_tests.TestHashMappingProtocol):
    type2test = collections.UserDict

    def test_all(self):
        # Test constructors
        u = collections.UserDict()
        u0 = collections.UserDict(d0)
        u1 = collections.UserDict(d1)
        u2 = collections.UserDict(d2)

            

Reported by Pylint.

              class UserDictTest(mapping_tests.TestHashMappingProtocol):
    type2test = collections.UserDict

    def test_all(self):
        # Test constructors
        u = collections.UserDict()
        u0 = collections.UserDict(d0)
        u1 = collections.UserDict(d1)
        u2 = collections.UserDict(d2)

            

Reported by Pylint.

              class UserDictTest(mapping_tests.TestHashMappingProtocol):
    type2test = collections.UserDict

    def test_all(self):
        # Test constructors
        u = collections.UserDict()
        u0 = collections.UserDict(d0)
        u1 = collections.UserDict(d1)
        u2 = collections.UserDict(d2)

            

Reported by Pylint.

              
    def test_all(self):
        # Test constructors
        u = collections.UserDict()
        u0 = collections.UserDict(d0)
        u1 = collections.UserDict(d1)
        u2 = collections.UserDict(d2)

        uu = collections.UserDict(u)

            

Reported by Pylint.

              class Fixtures:
    def setUp(self):
        self.fixtures = contextlib.ExitStack()
        self.addCleanup(self.fixtures.close)


class SiteDir(Fixtures):
    def setUp(self):
        super(SiteDir, self).setUp()

            

Reported by Pylint.

              
    def setUp(self):
        super(OnSysPath, self).setUp()
        self.fixtures.enter_context(self.add_sys_path(self.site_dir))


# Except for python/mypy#731, prefer to define
# FilesDef = Dict[str, Union['FilesDef', str]]
FilesDef = Dict[str, Union[Dict[str, Union[Dict[str, str], str]], str]]

            

Reported by Pylint.

              
    def setUp(self):
        self.fixtures = contextlib.ExitStack()
        self.addCleanup(self.fixtures.close)
        self.fixtures.enter_context(tempdir_as_cwd())
        build_files(self.files)


def build_files(file_defs, prefix=pathlib.Path()):

            

Reported by Pylint.

              
class FileBuilder:
    def unicode_filename(self):
        return FS_NONASCII or self.skip("File system does not support non-ascii.")


def DALS(str):
    "Dedent and left-strip"
    return textwrap.dedent(str).lstrip()

            

Reported by Pylint.

              class OnSysPath(Fixtures):
    @staticmethod
    @contextlib.contextmanager
    def add_sys_path(dir):
        sys.path[:0] = [str(dir)]
        try:
            yield
        finally:
            sys.path.remove(str(dir))

            

Reported by Pylint.

                      return FS_NONASCII or self.skip("File system does not support non-ascii.")


def DALS(str):
    "Dedent and left-strip"
    return textwrap.dedent(str).lstrip()


class NullFinder:

            

Reported by Pylint.

              import os
import sys
import copy
import shutil
import pathlib
import tempfile
import textwrap
import contextlib


            

Reported by Pylint.

              

@contextlib.contextmanager
def tempdir():
    tmpdir = tempfile.mkdtemp()
    try:
        yield pathlib.Path(tmpdir)
    finally:
        shutil.rmtree(tmpdir)

            

Reported by Pylint.

              

@contextlib.contextmanager
def save_cwd():
    orig = os.getcwd()
    try:
        yield
    finally:
        os.chdir(orig)

            

Reported by Pylint.

              

@contextlib.contextmanager
def tempdir_as_cwd():
    with tempdir() as tmp:
        with save_cwd():
            os.chdir(str(tmp))
            yield tmp


            

Reported by Pylint.