BF: Make EOL replacement without wx and handle exceptions

The call to convertEOL added an extra step in the paste process, leaving
extra steps to undo in the event of using undo after paste. This fix
looks for non-unix EOLs and replaces them with unix EOLs using string
replace method.

Author: dvbridges

psychopy/app/coder/codeEditorBase.py

@@ -14,6 +14,8 @@
 import sys
 from pkg_resources import parse_version
 from psychopy.constants import PY3
+from psychopy import logging
+
 
 class BaseCodeEditor(wx.stc.StyledTextCtrl):
     """Provides base class for code editors
@@ -235,8 +237,8 @@ def Paste(self, event=None):
                 try:
                     # if we can decode from utf-8 then all is good
                     txt.decode('utf-8')
-                except:
+                except Exception as e:
+                    logging.error(str(e))
                     # if not then wx conversion broke so get raw data instead
                     txt = dataObj.GetDataHere()
-            self.ReplaceSelection(txt)
-            self.ConvertEOLs(wx.stc.STC_EOL_LF)
+            self.ReplaceSelection(txt.replace("\r\n", "\n").replace("\r", "\n"))