Traceback (most recent call last):



 "C:\Miniconda3\envs\jupyter\Scripts\jupytext-script.py", line 9, in <module>


sys.exit(jupytext())



 "C:\Miniconda3\envs\jupyter\lib\site-packages\jupytext\cli.py", line 271, in jupytext


exit_code += jupytext_single_file(nb_file, args, log)



 "C:\Miniconda3\envs\jupyter\lib\site-packages\jupytext\cli.py", line 473, in jupytext_single_file


write(notebook, alt_path, fmt=alt_fmt)



 "C:\Miniconda3\envs\jupyter\lib\site-packages\jupytext\jupytext.py", line 350, in write


write(nb, stream, version=version, fmt=fmt, **kwargs)



 "C:\Miniconda3\envs\jupyter\lib\site-packages\jupytext\jupytext.py", line 355, in write


content = writes(nb, version=version, fmt=fmt, **kwargs)



 "C:\Miniconda3\envs\jupyter\lib\site-packages\jupytext\jupytext.py", line 318, in writes


return writer.writes(notebook, metadata)



 "C:\Miniconda3\envs\jupyter\lib\site-packages\jupytext\jupytext.py", line 144, in writes


header = encoding_and_executable(nb, metadata, self.ext)



 "C:\Miniconda3\envs\jupyter\lib\site-packages\jupytext\header.py", line 57, in encoding_and_executable


cell.source.encode('ascii')



 "C:\Miniconda3\envs\jupyter\lib\site-packages\ipython_genutils\ipstruct.py", line 134, in __getattr__


raise AttributeError(key)

AttributeError: encode


Traceback (most recent call last):


 "<stdin>", line 1, in <module>


 "/Volumes/projects/telekom/trunk/sandbox/tqdm/tqdm/std.py", line 1348, in reset

self.last_print_t = self.start_t = self._time()
AttributeError: 'tqdm' object has no attribute '_time'
