some more small fixes

extensions/fablabchemnitz/contour_scanner_and_trimmer/contour_scanner_and_trimmer.py

@@ -1200,7 +1200,10 @@ class ContourScannerAndTrimmer(inkex.EffectExtension):
                 allSubSplitLineStringsTransformed = []
                 for subSplitLine in subSplitLineArray:
                     csp = subSplitLine.path.to_arrays()
-                    cspTransformed = Path(subSplitLine.path.transform(subSplitLine.getparent().composed_transform())).to_arrays()
+                    if subSplitLine.getparent() != None:
+                        cspTransformed = Path(subSplitLine.path.transform(subSplitLine.getparent().composed_transform())).to_arrays()
+                    else:
+                        cspTransformed = csp
                     lineString = [(csp[0][1][0], csp[0][1][1]), (csp[1][1][0], csp[1][1][1])]
                     lineStringTransformed = [(cspTransformed[0][1][0], cspTransformed[0][1][1]), (cspTransformed[1][1][0], cspTransformed[1][1][1])]
                     if so.remove_trim_duplicates is True:

extensions/fablabchemnitz/export_selection_as/export_selection_as.py

@@ -8,7 +8,6 @@ import os
 import sys
 import subprocess
 from subprocess import Popen, PIPE
-import warnings
 import inkex
 from inkex import Rectangle
 import inkex.command
@@ -17,7 +16,8 @@ import tempfile
 from PIL import Image
 import base64
 from io import BytesIO
-
+import warnings
+warnings.simplefilter('ignore', Image.DecompressionBombWarning)
 from lxml import etree
 from scour.scour import scourString
 
@@ -244,7 +244,11 @@ class ExportObject(inkex.EffectExtension):
             for elem in selected.values():
                 elem.delete()
             #read png file and get base64 string from it
-            img = Image.open(png_export)
+            try:
+                img = Image.open(png_export)
+            except Image.DecompressionBombError as e: #we could also increse PIL.Image.MAX_IMAGE_PIXELS = some large int
+                self.msg("Error. Image is too large. Reduce DPI and try again!")
+                exit(1)
             output_buffer = BytesIO()
             img.save(output_buffer, format='PNG')
             byte_data = output_buffer.getvalue()