qt: clean-up imports

electrum/gui/qt/amountedit.py

@@ -3,7 +3,7 @@
 from decimal import Decimal
 
 from PyQt5.QtCore import pyqtSignal, Qt
-from PyQt5.QtGui import QPalette, QPainter, QFontMetrics
+from PyQt5.QtGui import QPalette, QPainter
 from PyQt5.QtWidgets import (QLineEdit, QStyle, QStyleOptionFrame)
 
 from .util import char_width_in_lineedit

electrum/gui/qt/channels_list.py

@@ -1,19 +1,18 @@
 # -*- coding: utf-8 -*-
 import traceback
-import asyncio
 from enum import IntEnum
 
-from PyQt5 import QtCore, QtWidgets, QtGui
+from PyQt5 import QtCore, QtGui
 from PyQt5.QtCore import Qt
-from PyQt5.QtWidgets import QMenu, QHBoxLayout, QLabel, QVBoxLayout, QGridLayout, QLineEdit, QPushButton
+from PyQt5.QtWidgets import QMenu, QHBoxLayout, QLabel, QVBoxLayout, QGridLayout, QLineEdit
 
-from electrum.util import inv_dict, bh2u, bfh
+from electrum.util import bh2u
 from electrum.i18n import _
 from electrum.lnchannel import Channel
 from electrum.wallet import Abstract_Wallet
-from electrum.lnutil import LOCAL, REMOTE, ConnStringFormatError, format_short_channel_id, LN_MAX_FUNDING_SAT
+from electrum.lnutil import LOCAL, REMOTE, format_short_channel_id, LN_MAX_FUNDING_SAT
 
-from .util import MyTreeView, WindowModalDialog, Buttons, OkButton, CancelButton, EnterButton, WWLabel, WaitingDialog, HelpLabel
+from .util import MyTreeView, WindowModalDialog, Buttons, OkButton, CancelButton, EnterButton, WaitingDialog
 from .amountedit import BTCAmountEdit
 from .channel_details import ChannelDetailsDialog
 

electrum/gui/qt/confirm_tx_dialog.py

@@ -24,25 +24,19 @@
 # SOFTWARE.
 
 from typing import TYPE_CHECKING, Optional
-import copy
 
-from PyQt5.QtCore import Qt, QSize
+from PyQt5.QtWidgets import  QVBoxLayout, QLabel, QGridLayout, QPushButton, QLineEdit
-from PyQt5.QtGui import QTextCharFormat, QBrush, QFont
-from PyQt5.QtWidgets import QHBoxLayout, QVBoxLayout, QLabel, QGridLayout, QPushButton, QWidget, QTextEdit, QLineEdit, QCheckBox
 
 from electrum.i18n import _
-from electrum.util import quantize_feerate, NotEnoughFunds, NoDynamicFeeEstimates
+from electrum.util import NotEnoughFunds, NoDynamicFeeEstimates
 from electrum.plugin import run_hook
-from electrum.transaction import TxOutput, Transaction
+from electrum.transaction import Transaction
-from electrum.simple_config import SimpleConfig, FEERATE_WARNING_HIGH_FEE
+from electrum.simple_config import FEERATE_WARNING_HIGH_FEE
 from electrum.wallet import InternalAddressCorruption
 
-from .util import WindowModalDialog, ButtonsLineEdit, ColorScheme, Buttons, CloseButton, FromList, HelpLabel, read_QIcon, char_width_in_lineedit, Buttons, CancelButton, OkButton
+from .util import WindowModalDialog, ColorScheme, HelpLabel, Buttons, CancelButton
-from .util import MONOSPACE_FONT
 
 from .fee_slider import FeeSlider
-from .history_list import HistoryList, HistoryModel
-from .qrtextedit import ShowQRTextEdit
 
 if TYPE_CHECKING:
     from .main_window import ElectrumWindow

electrum/gui/qt/exception_window.py

@@ -21,9 +21,7 @@
 # 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.
-import platform
 import sys
-import traceback
 
 from PyQt5.QtCore import QObject
 import PyQt5.QtCore as QtCore

electrum/gui/qt/invoice_list.py

@@ -26,19 +26,17 @@
 from enum import IntEnum
 
 from PyQt5.QtCore import Qt, QItemSelectionModel
-from PyQt5.QtGui import QStandardItemModel, QStandardItem, QFont
+from PyQt5.QtGui import QStandardItemModel, QStandardItem
 from PyQt5.QtWidgets import QAbstractItemView
-from PyQt5.QtWidgets import QHeaderView, QMenu, QVBoxLayout, QGridLayout, QLabel, QTreeWidget, QTreeWidgetItem
+from PyQt5.QtWidgets import QMenu, QVBoxLayout, QTreeWidget, QTreeWidgetItem
 
 from electrum.i18n import _
 from electrum.util import format_time, PR_UNPAID, PR_PAID, PR_INFLIGHT
 from electrum.util import get_request_status
 from electrum.util import PR_TYPE_ONCHAIN, PR_TYPE_LN
 from electrum.lnutil import format_short_channel_id
-from electrum.bitcoin import COIN
-from electrum import constants
 
-from .util import (MyTreeView, read_QIcon, MONOSPACE_FONT,
+from .util import (MyTreeView, read_QIcon,
                    import_meta_gui, export_meta_gui, pr_icons)
 from .util import CloseButton, Buttons
 from .util import WindowModalDialog

electrum/gui/qt/lightning_dialog.py

@@ -23,20 +23,21 @@
 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from PyQt5.QtGui import QStandardItemModel, QStandardItem
+from typing import TYPE_CHECKING
-from PyQt5.QtCore import Qt
+
-from PyQt5.QtWidgets import (QDialog, QWidget, QLabel, QVBoxLayout, QCheckBox,
+from PyQt5.QtWidgets import (QDialog, QLabel, QVBoxLayout, QPushButton)
-                             QGridLayout, QPushButton, QLineEdit, QTabWidget)
 
 from electrum.i18n import _
-from .util import HelpLabel, MyTreeView, Buttons
 
+from .util import Buttons
 
+if TYPE_CHECKING:
+    from . import ElectrumGui
 
 
 class LightningDialog(QDialog):
 
-    def __init__(self, gui_object):
+    def __init__(self, gui_object: 'ElectrumGui'):
         QDialog.__init__(self)
         self.gui_object = gui_object
         self.config = gui_object.config

electrum/gui/qt/main_window.py

@@ -38,32 +38,30 @@ import queue
 import asyncio
 from typing import Optional, TYPE_CHECKING, Sequence, List, Union
 
-from PyQt5.QtGui import QPixmap, QKeySequence, QIcon, QCursor, QFont
+from PyQt5.QtGui import QPixmap, QKeySequence, QIcon, QCursor
 from PyQt5.QtCore import Qt, QRect, QStringListModel, QSize, pyqtSignal
 from PyQt5.QtWidgets import (QMessageBox, QComboBox, QSystemTrayIcon, QTabWidget,
-                             QSpinBox, QMenuBar, QFileDialog, QCheckBox, QLabel,
+                             QMenuBar, QFileDialog, QCheckBox, QLabel,
-                             QVBoxLayout, QGridLayout, QLineEdit, QTreeWidgetItem,
+                             QVBoxLayout, QGridLayout, QLineEdit,
                              QHBoxLayout, QPushButton, QScrollArea, QTextEdit,
                              QShortcut, QMainWindow, QCompleter, QInputDialog,
-                             QWidget, QMenu, QSizePolicy, QStatusBar)
+                             QWidget, QSizePolicy, QStatusBar)
 
 import electrum
-from electrum import (keystore, simple_config, ecc, constants, util, bitcoin, commands,
+from electrum import (keystore, ecc, constants, util, bitcoin, commands,
-                      coinchooser, paymentrequest)
+                      paymentrequest)
 from electrum.bitcoin import COIN, is_address
 from electrum.plugin import run_hook
 from electrum.i18n import _
 from electrum.util import (format_time, format_satoshis, format_fee_satoshis,
-                           format_satoshis_plain, NotEnoughFunds,
+                           format_satoshis_plain,
-                           UserCancelled, NoDynamicFeeEstimates, profiler,
+                           UserCancelled, profiler,
                            export_meta, import_meta, bh2u, bfh, InvalidPassword,
-                           base_units, base_units_list, base_unit_name_to_decimal_point,
+                           decimal_point_to_base_unit_name,
-                           decimal_point_to_base_unit_name, quantize_feerate,
                            UnknownBaseUnit, DECIMAL_POINT_DEFAULT, UserFacingException,
                            get_new_wallet_name, send_exception_to_crash_reporter,
-                           InvalidBitcoinURI, InvoiceError)
+                           InvalidBitcoinURI)
 from electrum.util import PR_TYPE_ONCHAIN, PR_TYPE_LN
-from electrum.lnutil import PaymentFailure, SENT, RECEIVED
 from electrum.transaction import (Transaction, PartialTxInput,
                                   PartialTransaction, PartialTxOutput)
 from electrum.address_synchronizer import AddTransactionException
@@ -74,7 +72,7 @@ from electrum.network import Network, TxBroadcastError, BestEffortRequestFailed
 from electrum.exchange_rate import FxThread
 from electrum.simple_config import SimpleConfig
 from electrum.logging import Logger
-from electrum.util import PR_PAID, PR_UNPAID, PR_INFLIGHT, PR_FAILED
+from electrum.util import PR_PAID, PR_FAILED
 from electrum.util import pr_expiration_values
 from electrum.lnutil import ln_dummy_address
 
@@ -85,12 +83,12 @@ from .qrtextedit import ShowQRTextEdit, ScanQRTextEdit
 from .transaction_dialog import show_transaction
 from .fee_slider import FeeSlider
 from .util import (read_QIcon, ColorScheme, text_dialog, icon_path, WaitingDialog,
-                   WindowModalDialog, ChoicesLayout, HelpLabel, FromList, Buttons,
+                   WindowModalDialog, ChoicesLayout, HelpLabel, Buttons,
                    OkButton, InfoButton, WWLabel, TaskThread, CancelButton,
                    CloseButton, HelpButton, MessageBoxMixin, EnterButton,
-                   ButtonsLineEdit, CopyCloseButton, import_meta_gui, export_meta_gui,
+                   import_meta_gui, export_meta_gui,
                    filename_field, address_field, char_width_in_lineedit, webopen,
-                   MONOSPACE_FONT, TRANSACTION_FILE_EXTENSION_FILTER)
+                   TRANSACTION_FILE_EXTENSION_FILTER)
 from .util import ButtonsTextEdit
 from .installwizard import WIF_HELP_TEXT
 from .history_list import HistoryList, HistoryModel

electrum/gui/qt/qrtextedit.py

@@ -2,7 +2,6 @@ from PyQt5.QtWidgets import QFileDialog
 
 from electrum.i18n import _
 from electrum.plugin import run_hook
-from electrum.simple_config import SimpleConfig
 
 from .util import ButtonsTextEdit, MessageBoxMixin, ColorScheme, get_parent_main_window
 

electrum/gui/qt/request_list.py

@@ -26,19 +26,14 @@
 from enum import IntEnum
 
 from PyQt5.QtGui import QStandardItemModel, QStandardItem
-from PyQt5.QtWidgets import QMenu, QHeaderView
+from PyQt5.QtWidgets import QMenu
 from PyQt5.QtCore import Qt, QItemSelectionModel
 
 from electrum.i18n import _
-from electrum.util import format_time, age, get_request_status
+from electrum.util import format_time, get_request_status
 from electrum.util import PR_TYPE_ONCHAIN, PR_TYPE_LN
-from electrum.util import PR_UNPAID, PR_EXPIRED, PR_PAID, PR_UNKNOWN, PR_INFLIGHT, pr_tooltips
+from electrum.util import PR_PAID
-from electrum.lnutil import SENT, RECEIVED
 from electrum.plugin import run_hook
-from electrum.wallet import InternalAddressCorruption
-from electrum.bitcoin import COIN
-from electrum.lnaddr import lndecode
-import electrum.constants as constants
 
 from .util import MyTreeView, pr_icons, read_QIcon, webopen
 

electrum/gui/qt/seed_dialog.py

@@ -24,7 +24,7 @@
 # SOFTWARE.
 
 from PyQt5.QtCore import Qt
-from PyQt5.QtGui import QPixmap, QPalette
+from PyQt5.QtGui import QPixmap
 from PyQt5.QtWidgets import (QVBoxLayout, QCheckBox, QHBoxLayout, QLineEdit,
                              QLabel, QCompleter, QDialog, QStyledItemDelegate)
 

electrum/gui/qt/transaction_dialog.py

@@ -45,11 +45,10 @@ from electrum.bitcoin import base_encode
 from electrum.i18n import _
 from electrum.plugin import run_hook
 from electrum import simple_config
-from electrum.util import bfh
 from electrum.transaction import SerializationError, Transaction, PartialTransaction, PartialTxInput
 from electrum.logging import get_logger
 
-from .util import (MessageBoxMixin, read_QIcon, Buttons, CopyButton, icon_path,
+from .util import (MessageBoxMixin, read_QIcon, Buttons, icon_path,
                    MONOSPACE_FONT, ColorScheme, ButtonsLineEdit, text_dialog,
                    char_width_in_lineedit, TRANSACTION_FILE_EXTENSION_FILTER)
 

electrum/gui/qt/util.py

@@ -872,22 +872,6 @@ def get_default_language():
     name = QLocale.system().name()
     return name if name in languages else 'en_UK'
 
-class FromList(QTreeWidget):
-    def __init__(self, parent, create_menu):
-        super().__init__(parent)
-        self.setHeaderHidden(True)
-        self.setMaximumHeight(300)
-        self.setContextMenuPolicy(Qt.CustomContextMenu)
-        self.customContextMenuRequested.connect(create_menu)
-        self.setUniformRowHeights(True)
-        # remove left margin
-        self.setRootIsDecorated(False)
-        self.setColumnCount(2)
-        self.header().setStretchLastSection(False)
-        sm = QHeaderView.ResizeToContents
-        self.header().setSectionResizeMode(0, sm)
-        self.header().setSectionResizeMode(1, sm)
-
 
 def char_width_in_lineedit() -> int:
     char_width = QFontMetrics(QLineEdit().font()).averageCharWidth()

electrum/gui/qt/watchtower_dialog.py

@@ -25,11 +25,10 @@
 
 from PyQt5.QtGui import QStandardItemModel, QStandardItem
 from PyQt5.QtCore import Qt
-from PyQt5.QtWidgets import (QDialog, QWidget, QLabel, QVBoxLayout, QCheckBox,
+from PyQt5.QtWidgets import (QDialog, QVBoxLayout, QPushButton)
-                             QGridLayout, QPushButton, QLineEdit, QTabWidget)
 
 from electrum.i18n import _
-from .util import HelpLabel, MyTreeView, Buttons
+from .util import MyTreeView, Buttons
 
 
 class WatcherList(MyTreeView):