diff --git a/src/bitmessageqt/__init__.py b/src/bitmessageqt/__init__.py
index 93adcd28..c7fa6390 100644
--- a/src/bitmessageqt/__init__.py
+++ b/src/bitmessageqt/__init__.py
@@ -1955,18 +1955,20 @@ class MyForm(settingsmixin.SMainWindow):
         self.ui.comboBoxSendFrom.setCurrentIndex(0)
 
     def click_pushButtonAttach(self):
+        """Launch a file picker and append to the current message the base64-encoded contents of the chosen file."""
         filename = QtGui.QFileDialog.getOpenFileName(self, "Attach File")
         if filename:
             f = open(filename, 'rb')
             data = f.read()
             f.close()
             data_b64 = base64.b64encode(data)
-            html_data = '<a href="data:application/octet-stream;base64,' + data_b64 + '">' + os.path.basename(unicode(filename)) + '</a>'
+            html_data = '<a href="data:application/octet-stream;base64,' + data_b64 + '">' \
+                        + os.path.basename(unicode(filename)) + '</a>'
             if self.ui.tabWidgetSend.currentIndex() == self.ui.tabWidgetSend.indexOf(self.ui.sendDirect):
-                #send direct message
+                # send direct message
                 self.ui.textEditMessage.insertPlainText(html_data)
             else:
-                #send broadcast message
+                # send broadcast message
                 self.ui.textEditMessageBroadcast.insertPlainText(html_data)
 
     def click_pushButtonSend(self):
diff --git a/src/bitmessageqt/messageview.py b/src/bitmessageqt/messageview.py
index 8c7edcbe..7a6432b0 100644
--- a/src/bitmessageqt/messageview.py
+++ b/src/bitmessageqt/messageview.py
@@ -5,7 +5,8 @@ src/bitmessageqt/messageview.py
 """
 
 from PyQt4 import QtCore, QtGui
-import re, base64
+import re
+import base64
 
 from safehtmlparser import SafeHTMLParser