Remove unused imports. Explicitly import a few deep imports.

gui/qt/__init__.py

@@ -23,9 +23,9 @@
 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-import sys
-import os
 import signal
+import sys
+
 
 try:
     import PyQt5
@@ -39,11 +39,12 @@ import PyQt5.QtCore as QtCore
 
 from electrum.i18n import _, set_language
 from electrum.plugins import run_hook
-from electrum import SimpleConfig, Wallet, WalletStorage
-from electrum.synchronizer import Synchronizer
-from electrum.verifier import SPV
-from electrum.util import DebugMem, UserCancelled, InvalidPassword, print_error
-from electrum.wallet import Abstract_Wallet
+from electrum import WalletStorage
+# from electrum.synchronizer import Synchronizer
+# from electrum.verifier import SPV
+# from electrum.util import DebugMem
+from electrum.util import UserCancelled, print_error
+# from electrum.wallet import Abstract_Wallet
 
 from .installwizard import InstallWizard, GoBack
 

gui/qt/address_dialog.py

@@ -25,9 +25,9 @@
 
 from electrum.i18n import _
 
-import PyQt5
-from PyQt5.QtGui import *
 from PyQt5.QtCore import *
+from PyQt5.QtGui import *
+from PyQt5.QtWidgets import *
 
 from .util import *
 from .history_list import HistoryList

gui/qt/address_list.py

@@ -26,7 +26,7 @@ import webbrowser
 
 from .util import *
 from electrum.i18n import _
-from electrum.util import block_explorer_URL, format_satoshis, format_time
+from electrum.util import block_explorer_URL
 from electrum.plugins import run_hook
 from electrum.bitcoin import is_address
 

gui/qt/contact_list.py

@@ -26,14 +26,13 @@ import webbrowser
 
 from electrum.i18n import _
 from electrum.bitcoin import is_address
-from electrum.util import block_explorer_URL, format_satoshis, format_time, age
+from electrum.util import block_explorer_URL
 from electrum.plugins import run_hook
-from electrum.paymentrequest import PR_UNPAID, PR_PAID, PR_UNKNOWN, PR_EXPIRED
 from PyQt5.QtGui import *
 from PyQt5.QtCore import *
 from PyQt5.QtWidgets import (
     QAbstractItemView, QFileDialog, QMenu, QTreeWidgetItem)
-from .util import MyTreeWidget, pr_tooltips, pr_icons
+from .util import MyTreeWidget
 
 
 class ContactList(MyTreeWidget):

gui/qt/fee_slider.py

@@ -1,10 +1,8 @@
 
 from electrum.i18n import _
 
-import PyQt5
 from PyQt5.QtGui import *
 from PyQt5.QtCore import *
-import PyQt5.QtCore as QtCore
 from PyQt5.QtWidgets import QSlider, QToolTip
 
 import threading

gui/qt/history_list.py

@@ -27,8 +27,7 @@ import webbrowser
 
 from .util import *
 from electrum.i18n import _
-from electrum.util import block_explorer_URL, format_satoshis, format_time
-from electrum.plugins import run_hook
+from electrum.util import block_explorer_URL
 from electrum.util import timestamp_to_datetime, profiler
 
 

gui/qt/installwizard.py

@@ -1,12 +1,13 @@
 
-import sys
 import os
+import sys
+import threading
+import traceback
 
-from PyQt5.QtGui import *
 from PyQt5.QtCore import *
-import PyQt5.QtCore as QtCore
+from PyQt5.QtGui import *
+from PyQt5.QtWidgets import *
 
-import electrum
 from electrum import Wallet, WalletStorage
 from electrum.util import UserCancelled, InvalidPassword
 from electrum.base_wizard import BaseWizard
@@ -55,9 +56,8 @@ class CosignWidget(QWidget):
         self.update()
 
     def paintEvent(self, event):
-        import math
         bgcolor = self.palette().color(QPalette.Background)
-        pen = QPen(bgcolor, 7, QtCore.Qt.SolidLine)
+        pen = QPen(bgcolor, 7, Qt.SolidLine)
         qp = QPainter()
         qp.begin(self)
         qp.setPen(pen)

gui/qt/invoice_list.py

@@ -23,11 +23,10 @@
 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-
 from .util import *
 from electrum.i18n import _
-from electrum.util import block_explorer_URL, format_satoshis, format_time
-from electrum.plugins import run_hook
+from electrum.util import format_time
+
 
 class InvoiceList(MyTreeWidget):
     filter_columns = [0, 1, 2, 3]  # Date, Requestor, Description, Amount

gui/qt/main_window.py

@@ -25,7 +25,6 @@
 import sys, time, threading
 import os, json, traceback
 import shutil
-import socket
 import weakref
 import webbrowser
 import csv
@@ -33,13 +32,11 @@ from decimal import Decimal
 import base64
 from functools import partial
 
-import PyQt5
+from PyQt5.QtCore import Qt
 from PyQt5.QtGui import *
-from PyQt5.QtCore import *
-import PyQt5.QtCore as QtCore
+from PyQt5.QtWidgets import *
 
 from electrum.util import bh2u, bfh
-from . import icons_rc
 
 from electrum import keystore
 from electrum.bitcoin import COIN, is_address, TYPE_ADDRESS
@@ -48,25 +45,21 @@ from electrum.i18n import _
 from electrum.util import (format_time, format_satoshis, PrintError,
                            format_satoshis_plain, NotEnoughFunds,
                            UserCancelled)
-from electrum import Transaction, mnemonic
+from electrum import Transaction
 from electrum import util, bitcoin, commands, coinchooser
-from electrum import SimpleConfig, paymentrequest
-from electrum.wallet import Wallet, Multisig_Wallet
+from electrum import paymentrequest
+from electrum.wallet import Multisig_Wallet
 try:
     from electrum.plot import plot_history
 except:
     plot_history = None
 
-from .amountedit import AmountEdit, BTCAmountEdit, MyLineEdit, BTCkBEdit
+from .amountedit import AmountEdit, BTCAmountEdit, MyLineEdit
 from .qrcodewidget import QRCodeWidget, QRDialog
 from .qrtextedit import ShowQRTextEdit, ScanQRTextEdit
 from .transaction_dialog import show_transaction
 from .fee_slider import FeeSlider
 
-
-from electrum import ELECTRUM_VERSION
-import re
-
 from .util import *
 
 
@@ -85,11 +78,11 @@ class StatusBarButton(QPushButton):
         self.func()
 
     def keyPressEvent(self, e):
-        if e.key() == QtCore.Qt.Key_Return:
+        if e.key() == Qt.Key_Return:
             self.func()
 
 
-from electrum.paymentrequest import PR_UNPAID, PR_PAID, PR_UNKNOWN, PR_EXPIRED
+from electrum.paymentrequest import PR_PAID
 
 
 class ElectrumWindow(QMainWindow, MessageBoxMixin, PrintError):
@@ -928,7 +921,6 @@ class ElectrumWindow(QMainWindow, MessageBoxMixin, PrintError):
     def new_payment_request(self):
         addr = self.wallet.get_unused_address()
         if addr is None:
-            from electrum.wallet import Imported_Wallet
             if not self.wallet.is_deterministic():
                 msg = [
                     _('No more addresses in your wallet.'),
@@ -2071,7 +2063,7 @@ class ElectrumWindow(QMainWindow, MessageBoxMixin, PrintError):
         return d.run()
 
     def tx_from_text(self, txt):
-        from electrum.transaction import tx_from_str, Transaction
+        from electrum.transaction import tx_from_str
         try:
             tx = tx_from_str(txt)
             return Transaction(tx)

gui/qt/network_dialog.py

@@ -27,11 +27,11 @@ import socket
 
 from PyQt5.QtGui import *
 from PyQt5.QtCore import *
+from PyQt5.QtWidgets import *
 import PyQt5.QtCore as QtCore
 
 from electrum.i18n import _
 from electrum.bitcoin import NetworkConstants
-from electrum.network import serialize_server, deserialize_server
 from electrum.util import print_error
 
 from .util import *

gui/qt/password_dialog.py

@@ -23,8 +23,9 @@
 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
+from PyQt5.QtCore import Qt
 from PyQt5.QtGui import *
-from PyQt5.QtCore import *
+from PyQt5.QtWidgets import *
 from electrum.i18n import _
 from .util import *
 import re

gui/qt/qrcodewidget.py

@@ -1,6 +1,6 @@
 
-from PyQt5.QtGui import *
 from PyQt5.QtCore import *
+from PyQt5.QtGui import *
 import PyQt5.QtGui as QtGui
 from PyQt5.QtWidgets import (
     QApplication, QVBoxLayout, QTextEdit, QHBoxLayout, QPushButton, QWidget)

gui/qt/qrwindow.py

@@ -23,15 +23,11 @@
 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-import re
 import platform
-from decimal import Decimal
 
+from PyQt5.QtCore import Qt
 from PyQt5.QtGui import *
-from PyQt5.QtCore import *
-import PyQt5.QtCore as QtCore
-import PyQt5.QtGui as QtGui
-from PyQt5.QtWidgets import (QHBoxLayout, QVBoxLayout, QLabel, QWidget)
+from PyQt5.QtWidgets import QHBoxLayout, QVBoxLayout, QLabel, QWidget
 
 from electrum_gui.qt.qrcodewidget import QRCodeWidget
 from electrum.i18n import _
@@ -55,7 +51,7 @@ class QR_Window(QWidget):
         self.address = ''
         self.label = ''
         self.amount = 0
-        self.setFocusPolicy(QtCore.Qt.NoFocus)
+        self.setFocusPolicy(Qt.NoFocus)
 
         main_box = QHBoxLayout()
 

gui/qt/request_list.py

@@ -24,9 +24,9 @@
 # SOFTWARE.
 
 from electrum.i18n import _
-from electrum.util import block_explorer_URL, format_satoshis, format_time, age
+from electrum.util import format_time, age
 from electrum.plugins import run_hook
-from electrum.paymentrequest import PR_UNPAID, PR_PAID, PR_UNKNOWN, PR_EXPIRED
+from electrum.paymentrequest import PR_UNKNOWN
 from PyQt5.QtGui import *
 from PyQt5.QtCore import *
 from PyQt5.QtWidgets import QTreeWidgetItem, QMenu

gui/qt/seed_dialog.py

@@ -25,6 +25,7 @@
 
 from PyQt5.QtGui import *
 from PyQt5.QtCore import *
+from PyQt5.QtWidgets import *
 from electrum.i18n import _
 
 from .util import *

gui/qt/transaction_dialog.py

@@ -26,12 +26,10 @@ import copy
 import datetime
 import json
 
-import PyQt5
-from PyQt5.QtGui import *
 from PyQt5.QtCore import *
-import PyQt5.QtCore as QtCore
+from PyQt5.QtGui import *
+from PyQt5.QtWidgets import *
 
-from electrum import transaction
 from electrum.bitcoin import base_encode
 from electrum.i18n import _
 from electrum.plugins import run_hook

gui/qt/util.py

@@ -1,8 +1,6 @@
 import os.path
 import time
-import traceback
 import sys
-import threading
 import platform
 import queue
 from collections import namedtuple
@@ -23,7 +21,7 @@ else:
 
 dialogs = []
 
-from electrum.paymentrequest import PR_UNPAID, PR_PAID, PR_UNKNOWN, PR_EXPIRED
+from electrum.paymentrequest import PR_UNPAID, PR_PAID, PR_EXPIRED
 
 pr_icons = {
     PR_UNPAID:":icons/unpaid.png",

gui/qt/utxo_list.py

@@ -24,7 +24,6 @@
 # SOFTWARE.
 from .util import *
 from electrum.i18n import _
-from electrum.bitcoin import is_address
 
 
 class UTXOList(MyTreeWidget):

gui/stdio.py

@@ -4,8 +4,7 @@ _ = lambda x:x
 from electrum import WalletStorage, Wallet
 from electrum.util import format_satoshis, set_verbosity
 from electrum.bitcoin import is_address, COIN, TYPE_ADDRESS
-from electrum.network import filter_protocol
-import sys, getpass, datetime
+import getpass, datetime
 
 # minimal fdisk like gui for console usage
 # written by rofl0r, with some bits stolen from the text gui (ncurses)