diff --git a/src/diffpy/pdfgui/gui/aboutdialog.py b/src/diffpy/pdfgui/gui/aboutdialog.py
index c71c45b3..7550da67 100644
--- a/src/diffpy/pdfgui/gui/aboutdialog.py
+++ b/src/diffpy/pdfgui/gui/aboutdialog.py
@@ -3,8 +3,8 @@
 #
 # PDFgui            by DANSE Diffraction group
 #                   Simon J. L. Billinge
-#                   (c) 2006 trustees of the Michigan State University.
-#                   (c) 2024 trustees of the Columbia University in the City
+#                   (c) 2006 Trustees of the Michigan State University.
+#                   (c) 2024 Trustees of the Columbia University in the City
 #                   of New York
 #                   All rights reserved.
 #
diff --git a/src/diffpy/pdfgui/gui/errorwrapper.py b/src/diffpy/pdfgui/gui/errorwrapper.py
index a45a55fc..de99d93b 100644
--- a/src/diffpy/pdfgui/gui/errorwrapper.py
+++ b/src/diffpy/pdfgui/gui/errorwrapper.py
@@ -75,7 +75,7 @@ def _f(*args, **kwargs):
             return rvpass
 
         # Everything else
-        except:
+        except Exception:
             if pdfguiglobals.dbopts.pythondebugger:
                 import pdb
 
diff --git a/src/diffpy/pdfgui/gui/fittree.py b/src/diffpy/pdfgui/gui/fittree.py
index 886a6e61..250656e3 100644
--- a/src/diffpy/pdfgui/gui/fittree.py
+++ b/src/diffpy/pdfgui/gui/fittree.py
@@ -356,7 +356,7 @@ def AddFit(self, fitname="Fit 1", cdata=None, paste=False):
                 cdata = self.control.paste(cdata, None, fitname, pos)
             self.SetControlData(newfit, cdata)
             return newfit
-        except:
+        except Exception:
             self.Delete(newfit)
             raise
         return
@@ -427,7 +427,7 @@ def AddPhase(self, node, label, insertafter=None, filename=None, makedata=True,
             elif cdata is not None:
                 self.control.paste(cdata, pdata, label, pos)
             return newphase
-        except:
+        except Exception:
             self.Delete(newphase)
             raise
         return
@@ -492,7 +492,7 @@ def AddDataSet(self, node, label, insertafter=None, filename=None, makedata=True
             elif cdata is not None:
                 self.control.paste(cdata, pdata, label, pos)
             return newset
-        except:
+        except Exception:
             self.Delete(newset)
             raise
         return
@@ -553,7 +553,7 @@ def AddCalc(self, node, label, insertafter=None, makedata=True, cdata=None):
             elif cdata is not None:
                 self.control.paste(cdata, pdata, label, pos)
             return newcalc
-        except:
+        except Exception:
             self.Delete(newcalc)
             raise
         return
@@ -611,7 +611,7 @@ def GetClipboard(self):
             if cdatabytes[:16] == "pdfgui_cliboard=".encode():
                 cdatabytes = cdatabytes[16:]
                 cdata = pickle_loads(cdatabytes)
-        except:
+        except Exception:
             pass
         return cdata
 
diff --git a/src/diffpy/pdfgui/gui/phaseconfigurepanel.py b/src/diffpy/pdfgui/gui/phaseconfigurepanel.py
index 48bdaadd..5f294162 100644
--- a/src/diffpy/pdfgui/gui/phaseconfigurepanel.py
+++ b/src/diffpy/pdfgui/gui/phaseconfigurepanel.py
@@ -393,7 +393,7 @@ def applyTextCtrlChange(self, id, value):
 
             return value
 
-        except:
+        except Exception:
             return None
 
     def applyCellChange(self, i, j, value):
diff --git a/src/diffpy/pdfgui/gui/phasepanelutils.py b/src/diffpy/pdfgui/gui/phasepanelutils.py
index 6b4d03af..8459294e 100644
--- a/src/diffpy/pdfgui/gui/phasepanelutils.py
+++ b/src/diffpy/pdfgui/gui/phasepanelutils.py
@@ -234,7 +234,7 @@ def canPasteIntoCells(panel):
         # Strip any trailing tabs
         rowlist = [r.rstrip("\t") for r in rowlist]
         celllist = [r.split("\t") for r in rowlist]
-    except:
+    except wx.PyDeadObjectError:
         return False
 
     if len(celllist) == 0:
diff --git a/src/diffpy/pdfgui/gui/plotpanel.py b/src/diffpy/pdfgui/gui/plotpanel.py
index 241f4b48..8aaaec39 100644
--- a/src/diffpy/pdfgui/gui/plotpanel.py
+++ b/src/diffpy/pdfgui/gui/plotpanel.py
@@ -16,7 +16,6 @@
 
 # generated by wxGlade 0.9.3 on Fri Jul 19 16:05:24 2019
 
-import sys
 
 import wx
 
@@ -167,7 +166,7 @@ def _represent(mixedNames):
         xvals = _represent(xdata)
         try:
             xvals.remove("rw")
-        except:
+        except ValueError:
             pass
         numericStringSort(xvals)