I'm working through the Notebooks-AI tutorial in a Chrome browser on a Macbook Air, running OS X Catalina 10.15.1. Upon executing the final line of the tutorial, the following error occurred:
TypeError Traceback (most recent call last)
in
----> 1 writer.save()
/usr/local/lib/python3.7/site-packages/pandas/io/excel/_openpyxl.py in save(self)
42 Save workbook to disk.
43 """
---> 44 return self.book.save(self.path)
45
46 @classmethod
/usr/local/lib/python3.7/site-packages/openpyxl/workbook/workbook.py in save(self, filename)
406 if self.write_only and not self.worksheets:
407 self.create_sheet()
--> 408 save_workbook(self, filename)
409
410
/usr/local/lib/python3.7/site-packages/openpyxl/writer/excel.py in save_workbook(workbook, filename)
291 archive = ZipFile(filename, 'w', ZIP_DEFLATED, allowZip64=True)
292 writer = ExcelWriter(workbook, archive)
--> 293 writer.save()
294 return True
295
/usr/local/lib/python3.7/site-packages/openpyxl/writer/excel.py in save(self)
273 def save(self):
274 """Write data into the archive."""
--> 275 self.write_data()
276 self._archive.close()
277
/usr/local/lib/python3.7/site-packages/openpyxl/writer/excel.py in write_data(self)
73 archive.writestr(ARC_THEME, theme_xml)
74
---> 75 self._write_worksheets()
76 self._write_chartsheets()
77 self._write_images()
/usr/local/lib/python3.7/site-packages/openpyxl/writer/excel.py in _write_worksheets(self)
213
214 ws._id = idx
--> 215 self.write_worksheet(ws)
216
217 if ws._drawing:
/usr/local/lib/python3.7/site-packages/openpyxl/writer/excel.py in write_worksheet(self, ws)
198 else:
199 writer = WorksheetWriter(ws)
--> 200 writer.write()
201
202 ws._rels = writer._rels
/usr/local/lib/python3.7/site-packages/openpyxl/worksheet/_writer.py in write(self)
352 High level
353 """
--> 354 self.write_top()
355 self.write_rows()
356 self.write_tail()
/usr/local/lib/python3.7/site-packages/openpyxl/worksheet/_writer.py in write_top(self)
96 cols
97 """
---> 98 self.write_properties()
99 self.write_dimensions()
100 self.write_views()
/usr/local/lib/python3.7/site-packages/openpyxl/worksheet/_writer.py in write_properties(self)
58 def write_properties(self):
59 props = self.ws.sheet_properties
---> 60 self.xf.send(props.to_tree())
61
62
/usr/local/lib/python3.7/site-packages/openpyxl/worksheet/_writer.py in get_stream(self)
292 continue
293 else:
--> 294 xf.write(el)
295 except GeneratorExit:
296 pass
src/lxml/serializer.pxi in lxml.etree._IncrementalFileWriter.write()
TypeError: got invalid input value of type , expected string or Element
I'm working through the Notebooks-AI tutorial in a Chrome browser on a Macbook Air, running OS X Catalina 10.15.1. Upon executing the final line of the tutorial, the following error occurred:
TypeError Traceback (most recent call last)