diff --git a/.flake8 b/.flake8
index 383fc9988..1746f3c0f 100644
--- a/.flake8
+++ b/.flake8
@@ -18,7 +18,6 @@ ignore = F401, F811, E127, E128, E301, E302, E305, E501, E701, E704
 
 # Errors that we need to fix before enabling flake8 by default:
 #   921 F821 undefined name
-#    52 E402 module-level import not at top of file
 #    48 E225 missing whitespace around operator
 #    28 E116 unexpected indentation (comment)
 #    26 F403 from * import used
@@ -32,5 +31,4 @@ ignore = F401, F811, E127, E128, E301, E302, E305, E501, E701, E704
 #     4 E114 indentation is not a multiple of four
 #     3 E303 too many blank lines
 #     2 B303 __metaclass__ use on Python 3
-#     1 E401 multiple imports on one line
 #     1 E202 whitespace before )
diff --git a/stdlib/2/io.pyi b/stdlib/2/io.pyi
index 8724ffd11..5fa20c7a7 100644
--- a/stdlib/2/io.pyi
+++ b/stdlib/2/io.pyi
@@ -4,10 +4,10 @@
 
 # Only a subset of functionality is included.
 
-DEFAULT_BUFFER_SIZE = 0
-
 from typing import List, BinaryIO, TextIO, IO, overload, Iterator, Iterable, Any, Union
 
+DEFAULT_BUFFER_SIZE = 0
+
 def open(file: Union[str, unicode, int],
          mode: unicode = ..., buffering: int = ..., encoding: unicode = ...,
          errors: unicode = ..., newline: unicode = ...,
diff --git a/stdlib/2and3/asynchat.pyi b/stdlib/2and3/asynchat.pyi
index f4a57a4aa..b5cf3c082 100644
--- a/stdlib/2and3/asynchat.pyi
+++ b/stdlib/2and3/asynchat.pyi
@@ -1,8 +1,9 @@
-from typing import Union, Tuple, Sequence
 from abc import abstractmethod
-
 import asyncore
 import socket
+import sys
+from typing import Union, Tuple, Sequence
+
 
 class simple_producer:
     def __init__(self, data: str, buffer_size: int = ...) -> None: ...
@@ -30,7 +31,6 @@ class async_chat (asyncore.dispatcher):
     def initiate_send(self) -> None: ...
     def discard_buffers(self) -> None: ...
 
-import sys
 if sys.version_info < (3, 0, 0):
     class fifo:
         def __init__(self, list: Sequence[Union[str, simple_producer]] = ...) -> None: ...
diff --git a/stdlib/2and3/asyncore.pyi b/stdlib/2and3/asyncore.pyi
index 86af4a5f0..c7bf79397 100644
--- a/stdlib/2and3/asyncore.pyi
+++ b/stdlib/2and3/asyncore.pyi
@@ -1,6 +1,11 @@
 from typing import Tuple, Union, Optional, Any, Dict, overload
 
-import select, socket, sys, time, warnings, os
+import os
+import select
+import socket
+import sys
+import time
+import warnings
 
 from errno import (EALREADY, EINPROGRESS, EWOULDBLOCK, ECONNRESET, EINVAL,
                    ENOTCONN, ESHUTDOWN, EINTR, EISCONN, EBADF, ECONNABORTED,
diff --git a/stdlib/2and3/logging/handlers.pyi b/stdlib/2and3/logging/handlers.pyi
index 39b4be33e..ab16f7de3 100644
--- a/stdlib/2and3/logging/handlers.pyi
+++ b/stdlib/2and3/logging/handlers.pyi
@@ -1,17 +1,17 @@
 # Stubs for logging.handlers (Python 2.4)
 
-from typing import Any, Callable, Optional, Tuple, Union, overload
-from logging import Handler, FileHandler, LogRecord
 import datetime
+from logging import Handler, FileHandler, LogRecord
+from socket import SocketType
+import ssl
+import sys
+from typing import Any, Callable, Optional, Tuple, Union, overload
 if sys.version_info >= (3,):
     from queue import Queue
 else:
     from Queue import Queue
-from socket import SocketType
 # TODO update socket stubs to add SocketKind
 SocketKind = int
-import ssl
-import sys
 
 
 class WatchedFileHandler(Handler):
diff --git a/stdlib/2and3/mmap.pyi b/stdlib/2and3/mmap.pyi
index 5050dac74..d0be9df5f 100644
--- a/stdlib/2and3/mmap.pyi
+++ b/stdlib/2and3/mmap.pyi
@@ -1,15 +1,14 @@
 # Stubs for mmap
 
-from typing import (Optional, Sequence, Union, Generic, TypeVar, overload,
-                    Iterable, Container, Sized, Reversible)
 import sys
+from types import TracebackType
+from typing import (Optional, Sequence, Union, Generic, TypeVar, overload,
+                    Iterable, Container, Sized, Reversible, Type)
 
 
 _T = TypeVar('_T', str, bytes)
 
 # TODO already in PEP, have to get added to mypy
-from typing import Type
-from types import TracebackType
 _C = TypeVar('_C')
 class _ContextManager(Generic[_C]):
     def __enter__(self) -> _C: ...
diff --git a/stdlib/3.4/asyncio/futures.pyi b/stdlib/3.4/asyncio/futures.pyi
index 1376cb331..b88009324 100644
--- a/stdlib/3.4/asyncio/futures.pyi
+++ b/stdlib/3.4/asyncio/futures.pyi
@@ -1,10 +1,5 @@
 from typing import Any, Union, Callable, TypeVar, List, Generic, Iterable, Generator, Awaitable
 from .events import AbstractEventLoop
-
-__all__ = ...  # type: str
-
-_T = TypeVar('_T')
-
 from concurrent.futures._base import (
     Error as Error,
 )
@@ -12,6 +7,11 @@ from concurrent.futures import (
     CancelledError as CancelledError,
     TimeoutError as TimeoutError,
 )
+
+__all__ = ...  # type: str
+
+_T = TypeVar('_T')
+
 class InvalidStateError(Error): ...
 
 class _TracebackLogger:
diff --git a/stdlib/3.4/asyncio/protocols.pyi b/stdlib/3.4/asyncio/protocols.pyi
index d20313c23..91b7d94dd 100644
--- a/stdlib/3.4/asyncio/protocols.pyi
+++ b/stdlib/3.4/asyncio/protocols.pyi
@@ -1,8 +1,8 @@
+from asyncio import transports
 from typing import AnyStr
 
 __all__ = ...  # type: str
 
-from asyncio import transports
 
 class BaseProtocol:
     def connection_made(self, transport: transports.BaseTransport) -> None: ...
diff --git a/stdlib/3.4/asyncio/queues.pyi b/stdlib/3.4/asyncio/queues.pyi
index f08a545d5..dd1ffe600 100644
--- a/stdlib/3.4/asyncio/queues.pyi
+++ b/stdlib/3.4/asyncio/queues.pyi
@@ -1,10 +1,9 @@
-from typing import TypeVar, Generic
-
-__all__ = ...  # type: str
-
 from asyncio.events import AbstractEventLoop
 from .coroutines import coroutine
 from .futures import Future
+from typing import TypeVar, Generic
+
+__all__ = ...  # type: str
 
 
 class QueueEmpty(Exception): ...
diff --git a/stdlib/3.4/asyncio/streams.pyi b/stdlib/3.4/asyncio/streams.pyi
index a55b4e603..ed2030331 100644
--- a/stdlib/3.4/asyncio/streams.pyi
+++ b/stdlib/3.4/asyncio/streams.pyi
@@ -1,13 +1,14 @@
-from typing import Any, Callable, Generator, Iterable, Tuple
-
-ClientConnectedCallback = Callable[[Tuple[StreamReader, StreamWriter]], None]
 import socket
+from typing import Any, Callable, Generator, Iterable, Tuple
 
 from . import coroutines
 from . import events
 from . import protocols
 from . import transports
 
+ClientConnectedCallback = Callable[[Tuple[StreamReader, StreamWriter]], None]
+
+
 __all__ = ...  # type: str
 
 class IncompleteReadError(EOFError):
diff --git a/stdlib/3.4/asyncio/subprocess.pyi b/stdlib/3.4/asyncio/subprocess.pyi
index 3dd52b9c6..2416f9235 100644
--- a/stdlib/3.4/asyncio/subprocess.pyi
+++ b/stdlib/3.4/asyncio/subprocess.pyi
@@ -1,13 +1,11 @@
-from typing import Any, AnyStr, Tuple, Union
-
-__all__ = ...  # type: str
-
 from asyncio import events
 from asyncio import protocols
 from asyncio import streams
 from asyncio import transports
 from asyncio.coroutines import coroutine
+from typing import Any, AnyStr, Tuple, Union
 
+__all__ = ...  # type: str
 
 PIPE = ...  # type: int
 STDOUT = ...  # type: int
diff --git a/stdlib/3.4/asyncio/tasks.pyi b/stdlib/3.4/asyncio/tasks.pyi
index ebf0a7212..a33fd15d1 100644
--- a/stdlib/3.4/asyncio/tasks.pyi
+++ b/stdlib/3.4/asyncio/tasks.pyi
@@ -2,12 +2,11 @@ from typing import (Any, TypeVar, Set, Dict, List, TextIO, Union, Tuple, Generic
                     Coroutine, Generator, Iterable, Awaitable, overload, Sequence, Iterator,
                     Optional)
 import concurrent.futures
-
-__all__ = ...  # type: str
-
 from .events import AbstractEventLoop
 from .futures import Future
 
+__all__ = ...  # type: str
+
 _T = TypeVar('_T')
 
 FIRST_EXCEPTION = 'FIRST_EXCEPTION'
diff --git a/stdlib/3/email/parser.pyi b/stdlib/3/email/parser.pyi
index d878f1dd2..d0da73f69 100644
--- a/stdlib/3/email/parser.pyi
+++ b/stdlib/3/email/parser.pyi
@@ -1,11 +1,11 @@
 # Stubs for email.parser (Python 3.4)
 
-from typing import Callable, Optional, TextIO, BinaryIO
 import email.feedparser
 from email.message import Message
+import sys
+from typing import Callable, Optional, TextIO, BinaryIO
 if sys.version_info >= (3, 3):
     from email.policy import Policy
-import sys
 
 FeedParser = email.feedparser.FeedParser
 BytesFeedParser = email.feedparser.BytesFeedParser
diff --git a/stdlib/3/email/policy.pyi b/stdlib/3/email/policy.pyi
index c34ee5829..8bd76e1d6 100644
--- a/stdlib/3/email/policy.pyi
+++ b/stdlib/3/email/policy.pyi
@@ -1,5 +1,6 @@
 # Stubs for email.policy (Python 3.4)
 
+from abc import abstractmethod
 from typing import Any, Optional, Tuple, Union, Callable
 import sys
 from email.message import Message
@@ -7,7 +8,6 @@ from email.errors import MessageDefect
 from email.header import Header
 if sys.version_info >= (3, 4):
     from email.contentmanager import ContentManager
-from abc import abstractmethod
 
 if sys.version_info >= (3, 3):
 
diff --git a/stdlib/3/importlib/abc.pyi b/stdlib/3/importlib/abc.pyi
index 75c335639..61f9472a6 100644
--- a/stdlib/3/importlib/abc.pyi
+++ b/stdlib/3/importlib/abc.pyi
@@ -1,16 +1,17 @@
 from abc import ABCMeta, abstractmethod
-if sys.version_info >= (3, 4):
-    from _importlib_modulespec import ModuleSpec
 import sys
 import types
 from typing import Any, Mapping, Optional, Sequence, Tuple, Union
 
-_Path = Union[bytes, str]
-
 # Loader is exported from this module, but for circular import reasons
 # exists in its own stub file (with ModuleSpec and ModuleType).
 from _importlib_modulespec import Loader as Loader  # Exported
 
+if sys.version_info >= (3, 4):
+    from _importlib_modulespec import ModuleSpec
+
+_Path = Union[bytes, str]
+
 class Finder(metaclass=ABCMeta): ...
     # Technically this class defines the following method, but its subclasses
     # in this module violate its signature. Since this class is deprecated, it's
diff --git a/stdlib/3/os/__init__.pyi b/stdlib/3/os/__init__.pyi
index 0a42e5a56..30e72954e 100644
--- a/stdlib/3/os/__init__.pyi
+++ b/stdlib/3/os/__init__.pyi
@@ -3,12 +3,13 @@
 
 # based on http: //docs.python.org/3.2/library/os.html
 
+from builtins import OSError as error
+from io import TextIOWrapper as _TextIOWrapper
+import sys
 from typing import (
     Mapping, MutableMapping, Dict, List, Any, Tuple, Iterator, overload, Union, AnyStr,
     Optional, Generic, Set, Callable
 )
-import sys
-from builtins import OSError as error
 from . import path
 
 # ----- os variables -----
@@ -323,7 +324,6 @@ def killpg(pgid: int, sig: int) -> None: ...  # Unix only
 def nice(increment: int) -> int: ...  # Unix only
 def plock(op: int) -> None: ...  # Unix only ???op is int?
 
-from io import TextIOWrapper as _TextIOWrapper
 class popen(_TextIOWrapper):
     # TODO 'b' modes or bytes command not accepted?
     def __init__(self, command: str, mode: str = ...,
diff --git a/stdlib/3/platform.pyi b/stdlib/3/platform.pyi
index 794d4c5e3..728e259fe 100644
--- a/stdlib/3/platform.pyi
+++ b/stdlib/3/platform.pyi
@@ -1,13 +1,12 @@
 # Stubs for platform (Python 3.5)
 
-from typing import Tuple, NamedTuple
-
 from os import devnull as DEV_NULL
+from os import popen
+from typing import Tuple, NamedTuple
 
 def libc_ver(executable: str = ..., lib: str = ..., version: str = ..., chunksize: int = ...) -> Tuple[str, str]: ...
 def linux_distribution(distname: str = ..., version: str = ..., id: str = ..., supported_dists: Tuple[str, ...] = ..., full_distribution_name: bool = ...) -> Tuple[str, str, str]: ...
 def dist(distname: str = ..., version: str = ..., id: str = ..., supported_dists: Tuple[str, ...] = ...) -> Tuple[str, str, str]: ...
-from os import popen
 def win32_ver(release: str = ..., version: str = ..., csd: str = ..., ptype: str = ...) -> Tuple[str, str, str, str]: ...
 def mac_ver(release: str = ..., versioninfo: Tuple[str, str, str] = ..., machine: str = ...) -> Tuple[str, Tuple[str, str, str], str]: ...
 def java_ver(release: str = ..., vendor: str = ..., vminfo: Tuple[str, str, str] = ..., osinfo: Tuple[str, str, str] = ...) -> Tuple[str, str, Tuple[str, str, str], Tuple[str, str, str]]: ...
diff --git a/stdlib/3/types.pyi b/stdlib/3/types.pyi
index b927c14f8..17e33470a 100644
--- a/stdlib/3/types.pyi
+++ b/stdlib/3/types.pyi
@@ -9,6 +9,10 @@ from typing import (
     Union, overload
 )
 
+# ModuleType is exported from this module, but for circular import
+# reasons exists in its own stub file (with ModuleSpec and Loader).
+from _importlib_modulespec import ModuleType as ModuleType  # Exported
+
 _T = TypeVar('_T')
 _KT = TypeVar('_KT')
 _VT = TypeVar('_VT')
@@ -107,10 +111,6 @@ class BuiltinFunctionType:
     def __call__(self, *args: Any, **kwargs: Any) -> Any: ...
 BuiltinMethodType = BuiltinFunctionType
 
-# ModuleType is exported from this module, but for circular import
-# reasons exists in its own stub file (with ModuleSpec and Loader).
-from _importlib_modulespec import ModuleType as ModuleType  # Exported
-
 class TracebackType:
     tb_frame = ...  # type: FrameType
     tb_lasti = ...  # type: int
diff --git a/third_party/2/simplejson/__init__.pyi b/third_party/2/simplejson/__init__.pyi
index e3f6778c7..5f94eb969 100644
--- a/third_party/2/simplejson/__init__.pyi
+++ b/third_party/2/simplejson/__init__.pyi
@@ -1,10 +1,10 @@
 from typing import Any, IO
 
+from simplejson.scanner import JSONDecodeError
+from simplejson.decoder import JSONDecoder
+from simplejson.encoder import JSONEncoder, JSONEncoderForHTML
+
 def dumps(obj: Any, *args: Any, **kwds: Any) -> str: ...
 def dump(obj: Any, fp: IO[str], *args: Any, **kwds: Any) -> None: ...
 def loads(s: str, **kwds: Any) -> Any: ...
 def load(fp: IO[str]) -> Any: ...
-
-from simplejson.scanner import JSONDecodeError
-from simplejson.decoder import JSONDecoder
-from simplejson.encoder import JSONEncoder, JSONEncoderForHTML
diff --git a/third_party/2/six/__init__.pyi b/third_party/2/six/__init__.pyi
index 1ee1f8bc9..7ed44fc62 100644
--- a/third_party/2/six/__init__.pyi
+++ b/third_party/2/six/__init__.pyi
@@ -2,14 +2,19 @@
 
 from __future__ import print_function
 
+import types
 from typing import (
     Any, AnyStr, Callable, Iterable, Mapping, Optional,
     Pattern, Tuple, TypeVar, Union, overload, ValuesView, KeysView, ItemsView
 )
 import typing
-
 import unittest
-import types
+
+# Exports
+from __builtin__ import unichr as unichr
+from StringIO import StringIO as StringIO, StringIO as BytesIO
+from functools import wraps as wraps
+
 
 _T = TypeVar('_T')
 _K = TypeVar('_K')
@@ -62,12 +67,10 @@ def viewitems(d: Mapping[_K, _V]) -> ItemsView[_K, _V]: ...
 
 def b(s: str) -> binary_type: ...
 def u(s: str) -> text_type: ...
-from __builtin__ import unichr as unichr
 int2byte = chr
 def byte2int(bs: binary_type) -> int: ...
 def indexbytes(buf: binary_type, i: int) -> int: ...
 def iterbytes(buf: binary_type) -> typing.Iterator[int]: ...
-from StringIO import StringIO as StringIO, StringIO as BytesIO
 
 def assertCountEqual(self: unittest.TestCase, first: Iterable[_T], second: Iterable[_T], msg: str = ...) -> None: ...
 @overload
@@ -82,8 +85,6 @@ def raise_from(value: BaseException, from_value: BaseException) -> None: ...
 
 print_ = print
 
-from functools import wraps as wraps
-
 def with_metaclass(meta: type, *bases: type) -> type: ...
 def add_metaclass(metaclass: type) -> Callable[[_T], _T]: ...
 def python_2_unicode_compatible(klass: _T) -> _T: ...
diff --git a/third_party/2/sqlalchemy/sql/expression.pyi b/third_party/2/sqlalchemy/sql/expression.pyi
index ab7e87447..48fc3b896 100644
--- a/third_party/2/sqlalchemy/sql/expression.pyi
+++ b/third_party/2/sqlalchemy/sql/expression.pyi
@@ -7,9 +7,6 @@ from . import base
 from . import selectable
 from . import dml
 
-func = functions.func  # type: functions._FunctionGenerator
-modifier = functions.modifier  # type: functions._FunctionGenerator
-
 from .visitors import Visitable
 
 from .elements import ClauseElement, ColumnElement,\
@@ -28,6 +25,9 @@ from .selectable import Alias, Join, Select, Selectable, TableClause, \
     subquery, HasPrefixes, HasSuffixes, Exists, ScalarSelect, TextAsFrom
 from .dml import Insert, Update, Delete, UpdateBase, ValuesBase
 
+func = functions.func  # type: functions._FunctionGenerator
+modifier = functions.modifier  # type: functions._FunctionGenerator
+
 and_ = ...  # type: Any
 or_ = ...  # type: Any
 bindparam = ...  # type: Any
diff --git a/third_party/2and3/jinja2/utils.pyi b/third_party/2and3/jinja2/utils.pyi
index 1f6d31bff..136829972 100644
--- a/third_party/2and3/jinja2/utils.pyi
+++ b/third_party/2and3/jinja2/utils.pyi
@@ -4,6 +4,8 @@
 
 from typing import Any, Optional
 
+from markupsafe import Markup, escape, soft_unicode
+
 missing = ...  # type: Any
 internal_code = ...  # type: Any
 concat = ...  # type: Any
@@ -60,5 +62,3 @@ class Joiner:
     used = ...  # type: bool
     def __init__(self, sep: str = ...) -> None: ...
     def __call__(self): ...
-
-from markupsafe import Markup, escape, soft_unicode
diff --git a/third_party/3.6/click/core.pyi b/third_party/3.6/click/core.pyi
index 66b5b840c..e775636ae 100644
--- a/third_party/3.6/click/core.pyi
+++ b/third_party/3.6/click/core.pyi
@@ -430,5 +430,5 @@ class Argument(Parameter):
     ) -> None:
         ...
 
-
-from click.types import ParamType  # cyclic dependency
+# cyclic dependency
+from click.types import ParamType  # noqa: E402
diff --git a/third_party/3/requests/packages/urllib3/connection.pyi b/third_party/3/requests/packages/urllib3/connection.pyi
index 577bc8528..77e4c429d 100644
--- a/third_party/3/requests/packages/urllib3/connection.pyi
+++ b/third_party/3/requests/packages/urllib3/connection.pyi
@@ -3,6 +3,7 @@
 from typing import Any
 from . import packages
 from http.client import HTTPConnection as _HTTPConnection
+import ssl
 # from httplib import HTTPConnection as _HTTPConnection # python 2
 from . import exceptions
 from .packages import ssl_match_hostname
@@ -12,7 +13,6 @@ import http.client
 
 class DummyConnection: ...
 
-import ssl
 BaseSSLError = ssl.SSLError
 ConnectionError = __builtins__.ConnectionError
 HTTPException = http.client.HTTPException
diff --git a/third_party/3/six/__init__.pyi b/third_party/3/six/__init__.pyi
index 6768fc124..5419d1559 100644
--- a/third_party/3/six/__init__.pyi
+++ b/third_party/3/six/__init__.pyi
@@ -19,10 +19,14 @@ from typing import (
     ValuesView,
     overload,
 )
-import typing
-
-import unittest
 import types
+import typing
+import unittest
+
+# Exports
+from io import StringIO as StringIO, BytesIO as BytesIO
+from builtins import next as next
+from functools import wraps as wraps
 
 _T = TypeVar('_T')
 _K = TypeVar('_K')
@@ -45,9 +49,6 @@ MAXSIZE = ...  # type: int
 # def add_move
 # def remove_move
 
-from builtins import next as advance_iterator
-next = advance_iterator
-
 def callable(obj: object) -> bool: ...
 
 def get_unbound_function(unbound: types.FunctionType) -> types.FunctionType: ...
@@ -80,7 +81,6 @@ def int2byte(i: int) -> bytes: ...
 def byte2int(bs: binary_type) -> int: ...
 def indexbytes(buf: binary_type, i: int) -> int: ...
 def iterbytes(buf: binary_type) -> typing.Iterator[int]: ...
-from io import StringIO as StringIO, BytesIO as BytesIO
 
 def assertCountEqual(self: unittest.TestCase, first: Iterable[_T], second: Iterable[_T], msg: str = None) -> None: ...
 @overload
@@ -96,8 +96,6 @@ def raise_from(value: BaseException, from_value: BaseException) -> None: ...
 
 print_ = print
 
-from functools import wraps as wraps
-
 def with_metaclass(meta: type, *bases: type) -> type: ...
 def add_metaclass(metaclass: type) -> Callable[[_T], _T]: ...
 def python_2_unicode_compatible(klass: _T) -> _T: ...