diff --git a/PRIVATE b/PRIVATE
index 1b08e028a..c8bf5cf4b 160000
--- a/PRIVATE
+++ b/PRIVATE
@@ -1 +1 @@
-Subproject commit 1b08e028a6177d03a0d4202e5feed2ec29f91c19
+Subproject commit c8bf5cf4b4700cb9b9cd3db67a9148298598ba3f
diff --git a/processing/pre/seeds_fromDistribution.py b/processing/pre/seeds_fromDistribution.py
index 2045d68bf..d00016865 100755
--- a/processing/pre/seeds_fromDistribution.py
+++ b/processing/pre/seeds_fromDistribution.py
@@ -59,8 +59,7 @@ class myThread (threading.Thread):
         myBestSeedsVFile.close()
         myBestSeedsVFile = StringIO()
         i=0
-        for line in bestSeedsVFile:
-          myBestSeedsVFile.write(line)
+        myBestSeedsVFile.writelines(bestSeedsVFile.readlines())
       s.release()
 
       if randReset:                                                                                 # new direction because current one led to worse fit
@@ -155,8 +154,7 @@ class myThread (threading.Thread):
             perturbedSeedsVFile.seek(0)
             bestSeedsVFile.close()
             bestSeedsVFile = StringIO()
-            for line in perturbedSeedsVFile:
-              bestSeedsVFile.write(line)
+            bestSeedsVFile.writelines(perturbedSeedsVFile.readlines())
             for j in range(nMicrostructures):
               target[j]['error'] = currentError[j]
             randReset = True