diff --git a/gui/qt/paytoedit.py b/gui/qt/paytoedit.py
index 35abd7aa..d6ff3f9b 100644
--- a/gui/qt/paytoedit.py
+++ b/gui/qt/paytoedit.py
@@ -31,8 +31,9 @@ frozen_style = "QWidget { background-color:none; border:none;}"
 normal_style = "QPlainTextEdit { }"
 
 class PayToEdit(ScanQRTextEdit):
+
     def __init__(self, win):
-        super(PayToEdit,self).__init__(win=win)
+        ScanQRTextEdit.__init__(self)
         self.amount_edit = win.amount_e
         self.document().contentsChanged.connect(self.update_size)
         self.heightMin = 0
@@ -42,7 +43,7 @@ class PayToEdit(ScanQRTextEdit):
         self.outputs = []
         self.errors = []
         self.is_pr = False
-        self.scan_f = self.win.pay_from_URI
+        self.scan_f = win.pay_from_URI
         self.update_size()
         self.payto_address = None
 
diff --git a/gui/qt/qrtextedit.py b/gui/qt/qrtextedit.py
index e23700a9..b182c027 100644
--- a/gui/qt/qrtextedit.py
+++ b/gui/qt/qrtextedit.py
@@ -7,8 +7,9 @@ from util import ButtonsTextEdit
 
 
 class ShowQRTextEdit(ButtonsTextEdit):
+
     def __init__(self, text=None):
-        super(ShowQRTextEdit, self).__init__(text)
+        ButtonsTextEdit__init__(self, text)
         self.setReadOnly(1)
         self.addButton(":icons/qrcode.png", self.qr_show, _("Show as QR code"))
         run_hook('show_text_edit', self)
@@ -28,13 +29,10 @@ class ShowQRTextEdit(ButtonsTextEdit):
 
 
 class ScanQRTextEdit(ButtonsTextEdit):
-    def __init__(self, win, text=""):
-        super(ScanQRTextEdit,self).__init__(text)
+
+    def __init__(self, text=""):
+        ButtonsTextEdit.__init__(self, text)
         self.setReadOnly(0)
-        self.win = win
-        assert win, "You must pass a window with access to the config to ScanQRTextEdit constructor."
-        if win:
-            assert hasattr(win,"config"), "You must pass a window with access to the config to ScanQRTextEdit constructor."
         self.addButton(":icons/file.png", self.file_input, _("Read file"))
         self.addButton(":icons/qrcode.png", self.qr_input, _("Read QR code"))
         run_hook('scan_text_edit', self)
@@ -48,9 +46,9 @@ class ScanQRTextEdit(ButtonsTextEdit):
         self.setText(data)
 
     def qr_input(self):
-        from electrum import qrscanner
+        from electrum import qrscanner, get_config
         try:
-            data = qrscanner.scan_qr(self.win.config)
+            data = qrscanner.scan_qr(get_config())
         except BaseException, e:
             QMessageBox.warning(self, _('Error'), _(e), _('OK'))
             return ""
diff --git a/gui/qt/seed_dialog.py b/gui/qt/seed_dialog.py
index cc779438..b9d5a537 100644
--- a/gui/qt/seed_dialog.py
+++ b/gui/qt/seed_dialog.py
@@ -23,7 +23,6 @@ from electrum.i18n import _
 from electrum import mnemonic
 
 from util import *
-from qrcodewidget import QRCodeWidget, QRDialog
 from qrtextedit import ShowQRTextEdit, ScanQRTextEdit
 
 class SeedDialog(QDialog):
@@ -73,7 +72,7 @@ def enter_seed_box(msg, window, sid=None, text=None):
     label = QLabel(msg)
     label.setWordWrap(True)
     if not text:
-        seed_e = ScanQRTextEdit(win=window)
+        seed_e = ScanQRTextEdit()
         seed_e.setTabChangesFocus(True)
     else:
         seed_e = ShowQRTextEdit(text=text)
diff --git a/gui/qt/util.py b/gui/qt/util.py
index 6e38c2c7..ae5fd4b7 100644
--- a/gui/qt/util.py
+++ b/gui/qt/util.py
@@ -200,7 +200,7 @@ def text_dialog(parent, title, label, ok_label, default=None):
     l = QVBoxLayout()
     dialog.setLayout(l)
     l.addWidget(QLabel(label))
-    txt = ScanQRTextEdit(parent)
+    txt = ScanQRTextEdit()
     if default:
         txt.setText(default)
     l.addWidget(txt)