do not "import *"

electrum/gui/qt/lightning_dialog.py

@@ -23,12 +23,10 @@
 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-import socket
-
-from PyQt5.QtGui import *
-from PyQt5.QtCore import *
-from PyQt5.QtWidgets import *
-import PyQt5.QtCore as QtCore
+from PyQt5.QtGui import QStandardItemModel, QStandardItem
+from PyQt5.QtCore import Qt
+from PyQt5.QtWidgets import (QDialog, QWidget, QLabel, QVBoxLayout, QCheckBox,
+                             QGridLayout, QPushButton, QLineEdit, QTabWidget)
 
 from electrum.i18n import _
 from .util import HelpLabel, MyTreeView, Buttons