small import clean-up

electrum/base_crash_reporter.py

@@ -30,9 +30,9 @@ import os
 from .version import ELECTRUM_VERSION
 from . import constants
 from .i18n import _
-
 from .util import make_aiohttp_session
 
+
 class BaseCrashReporter:
     report_server = "https://crashhub.electrum.org"
     config_key = "show_crash_reporter"

electrum/contacts.py

@@ -21,11 +21,9 @@
 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 import re
+
 import dns
 from dns.exception import DNSException
-import json
-import traceback
-import sys
 
 from . import bitcoin
 from . import dnssec

electrum/jsonrpc.py

@@ -23,10 +23,11 @@
 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from jsonrpclib.SimpleJSONRPCServer import SimpleJSONRPCServer, SimpleJSONRPCRequestHandler
 from base64 import b64decode
 import time
 
+from jsonrpclib.SimpleJSONRPCServer import SimpleJSONRPCServer, SimpleJSONRPCRequestHandler
+
 from . import util
 
 

electrum/mnemonic.py

@@ -23,7 +23,6 @@
 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 import os
-import hmac
 import math
 import hashlib
 import unicodedata

electrum/websockets.py

@@ -27,7 +27,7 @@ import os
 import json
 from collections import defaultdict
 import asyncio
-from typing import Dict, List
+from typing import Dict, List, Tuple
 import traceback
 import sys
 
@@ -64,7 +64,7 @@ class BalanceMonitor(SynchronizerBase):
     def __init__(self, config, network):
         SynchronizerBase.__init__(self, network)
         self.config = config
-        self.expected_payments = defaultdict(list)  # type: Dict[str, List[WebSocket, int]]
+        self.expected_payments = defaultdict(list)  # type: Dict[str, List[Tuple[WebSocket, int]]]
 
     def make_request(self, request_id):
         # read json file

electrum/x509.py

@@ -22,12 +22,16 @@
 # ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
-from . import util
-from .util import profiler, bh2u
-import ecdsa
+
 import hashlib
 import time
 
+import ecdsa
+
+from . import util
+from .util import profiler, bh2u
+
+
 # algo OIDs
 ALGO_RSA_SHA1 = '1.2.840.113549.1.1.5'
 ALGO_RSA_SHA256 = '1.2.840.113549.1.1.11'