PermissionError: [WinError 5] when trying to convert to PDF

[netotz]

Trying to convert a Jupyter notebook to PDF throws the following trace error:

[NbConvertApp] Converting notebook evidencia1/ejercicios.ipynb to pdf
Traceback (most recent call last):
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\traitlets\traitlets.py", line 535, in get
    value = obj._trait_values[self.name]
KeyError: 'command'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\traitlets\traitlets.py", line 535, in get
    value = obj._trait_values[self.name]
KeyError: 'inkscape_version'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "C:\Users\netoo\AppData\Local\Programs\Python\Python38\Scripts\jupyter-nbconvert.EXE\__main__.py", line 7, in <module>
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\jupyter_core\application.py", line 270, in launch_instance
    return super(JupyterApp, cls).launch_instance(argv=argv, **kwargs)
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\traitlets\config\application.py", line 845, in launch_instance
    app.start()
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\nbconvert\nbconvertapp.py", line 350, in start
    self.convert_notebooks()
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\nbconvert\nbconvertapp.py", line 524, in convert_notebooks
    self.convert_single_notebook(notebook_filename)
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\nbconvert\nbconvertapp.py", line 489, in convert_single_notebook
    output, resources = self.export_single_notebook(notebook_filename, resources, input_buffer=input_buffer)
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\nbconvert\nbconvertapp.py", line 418, in export_single_notebook
    output, resources = self.exporter.from_filename(notebook_filename, resources=resources)
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\nbconvert\exporters\exporter.py", line 181, in from_filename
    return self.from_file(f, resources=resources, **kw)
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\nbconvert\exporters\exporter.py", line 199, in from_file
    return self.from_notebook_node(nbformat.read(file_stream, as_version=4), resources=resources, **kw)
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\nbconvert\exporters\pdf.py", line 168, in from_notebook_node
    latex, resources = super().from_notebook_node(
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\nbconvert\exporters\latex.py", line 77, in from_notebook_node
    return super().from_notebook_node(nb, resources, **kw)
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\nbconvert\exporters\templateexporter.py", line 369, in from_notebook_node
    nb_copy, resources = super().from_notebook_node(nb, resources, **kw)
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\nbconvert\exporters\exporter.py", line 143, in from_notebook_node
    nb_copy, resources = self._preprocess(nb_copy, resources)
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\nbconvert\exporters\exporter.py", line 318, in _preprocess
    nbc, resc = preprocessor(nbc, resc)
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\nbconvert\preprocessors\base.py", line 47, in __call__
    return self.preprocess(nb, resources)
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\nbconvert\preprocessors\base.py", line 69, in preprocess
    nb.cells[index], resources = self.preprocess_cell(cell, resources, index)
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\nbconvert\preprocessors\convertfigures.py", line 45, in preprocess_cell
    output.data[self.to_format] = self.convert_figure(
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\nbconvert\preprocessors\svg2pdf.py", line 125, in convert_figure
    shell = self.command.format(from_filename=input_filename,
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\traitlets\traitlets.py", line 575, in __get__
    return self.get(obj, cls)
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\traitlets\traitlets.py", line 538, in get
    default = obj.trait_defaults(self.name)
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\traitlets\traitlets.py", line 1578, in trait_defaults
    return self._get_trait_default_generator(names[0])(self)
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\traitlets\traitlets.py", line 975, in __call__
    return self.func(*args, **kwargs)
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\nbconvert\preprocessors\svg2pdf.py", line 77, in _command_default
    major_verison = self.inkscape_version.split('.')[0]
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\traitlets\traitlets.py", line 575, in __get__
    return self.get(obj, cls)
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\traitlets\traitlets.py", line 538, in get
    default = obj.trait_defaults(self.name)
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\traitlets\traitlets.py", line 1578, in trait_defaults
    return self._get_trait_default_generator(names[0])(self)
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\traitlets\traitlets.py", line 975, in __call__
    return self.func(*args, **kwargs)
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\site-packages\nbconvert\preprocessors\svg2pdf.py", line 57, in _inkscape_version_default
    p = subprocess.Popen([self.inkscape, '--version'],
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\subprocess.py", line 854, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "c:\users\netoo\appdata\local\programs\python\python38\lib\subprocess.py", line 1307, in _execute_child
    hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
PermissionError: [WinError 5] Acceso denegado

Before that I was getting an error related to Inkscape but I reinstalled it and followed this answer: https://github.com/jupyter/nbconvert/issues/456#issuecomment-452833451

nbconvert version: 6.0.7

[netotz]

My temporary solution was to use the absolute path as a string literal where I installed Inkscape instead of calling self.inkscape, in my case the path is 'C:\\Program Files\\Inkscape\\inkscape.exe': https://github.com/jupyter/nbconvert/blob/88baf7a9ca724d74c9f890a60d5c3680e8959a14/nbconvert/preprocessors/svg2pdf.py#L57 in that line I have p = subprocess.Popen(['C:\\Program Files\\Inkscape\\inkscape.exe', '--version'].

I printed self.inkscape and the output was 'C:\Program Files\Inkscape\inkscape.exe'. I thought it was because of the double back slash so I tried os.path.abspath(self.inkscape) but it was adding at the beginning the path from where I was calling the command. I also tried pathlib.Path(self.inkscape) but it didn't work, so I have no idea what the problem could be.

By the way as you can see, this is previous to 5852762 as that change doesn't work for me.

[technic]

May I kindly ask to put this to high priority? There are already a pull requests which shall fix this issue, e.g. https://github.com/jupyter/nbconvert/pull/1512. @MSeal Is there a way I can help to move it forward?

[technic]

By the way, this is probably a duplicate of https://github.com/jupyter/nbconvert/issues/1447

[g0h3y6]

By Changing the version of nbconvert to 5.5.0, it did work! I think the developers of nbconvert should refer to the version 5.5.0?

[g0h3y6]

By Changing the version of nbconvert to 5.5.0, it did work! I think the developers of nbconvert should refer to the version 5.5.0?

I didn't use any other method but added inkscape to system path before compiling GAN_Human.ipynb to latex. Anyone else met this problem could take this into consideration...