c2d63f068433c6f321c57b380733ace4bbec12b7
lrnassar
  Thu Mar 26 13:21:13 2026 -0700
Fix UnboundLocalError in buildPublicSessionThumbnailsIndexPage.py when sessions have
unusual names that cause the trash line parsing to fail. Skip sessions where sessionUrl
was not set instead of crashing. No RM.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

diff --git src/utils/qa/buildPublicSessionThumbnailsIndexPage.py src/utils/qa/buildPublicSessionThumbnailsIndexPage.py
index f4a86464ca2..9e4955a3d7e 100755
--- src/utils/qa/buildPublicSessionThumbnailsIndexPage.py
+++ src/utils/qa/buildPublicSessionThumbnailsIndexPage.py
@@ -23,41 +23,49 @@
               "    buildPublicSessionThumbnailsIndexPage /cluster/home/lrnassar/kent/src/hg/htdocs/\n")
         exit(0)
     parser._action_groups.append(optional)
     options = parser.parse_args()
     return  options
 
 def queryHgPublicSessAndAssignOutputFileAndDir(saveDir):
     """Curl hgPublicSession and assign output file name/directory"""
     hgPublicSessionOutPut = requests.get('https://genome.ucsc.edu/cgi-bin/hgPublicSessions')
     outputFile = open(saveDir+'thumbNailLinks.html', 'w')
     return(hgPublicSessionOutPut, outputFile)
 
 def parseHgPublicSessPageAndWriteOut(hgPublicSessionOutPut, saveDir, outputFile):
     """Parse hgPublicSession curled page, extract thumbnail/url/description and write out to file"""
     sessionThumbNailsWritten = 1
+    sessionUrl = None
+    currentImageFileName = None
     for line in hgPublicSessionOutPut.text.split('\n'):
         if "trash" in line and sessionThumbNailsWritten < 4:
             sessionUrl = "https://genome.ucsc.edu/cgi-bin/"+line.split('"')[1].split("/")[2]
             trashDirUrl = line.split('"')[3]
             downloadThumbNailUrl = "https://genome.ucsc.edu/trash/hgPS/"+trashDirUrl.split("/")[3]
             currentImageFileName = 'sessionThumbNail'+str(sessionThumbNailsWritten)+'.png'
             img_data = requests.get(downloadThumbNailUrl).content
             with open(saveDir+currentImageFileName, 'wb') as handler:
                 handler.write(img_data)
             os.chmod(saveDir+currentImageFileName, 0o664)
         if "Description:" in line and sessionThumbNailsWritten < 4:
+            if sessionUrl is None or currentImageFileName is None:
+                sessionUrl = None
+                currentImageFileName = None
+                continue
             sessionThumbNailsWritten+=1
             sessionDescription = line.split('</b> ')[1].split('<br>')[0]
             outputFile.write('''<a href="'''+sessionUrl+'''">\n<img src="'''+currentImageFileName+'''" title="'''
                          +sessionDescription+'''" class="sessionThumbnail" style="vertical-align: top;" width="30%"
                          height=40%"></img></a>\n''')
+            sessionUrl = None
+            currentImageFileName = None
     outputFile.close()
     os.chmod(saveDir+'thumbNailLinks.html', 0o775)
 
 def main():
     options = parseArgs()
     saveDir = options.saveDir
     hgPublicSessionOutPut, outputFile = queryHgPublicSessAndAssignOutputFileAndDir(saveDir)
     parseHgPublicSessPageAndWriteOut(hgPublicSessionOutPut, saveDir, outputFile)
 
 main()