On Friday, February 15, 2019 at 12:57:16 PM UTC-5, vitalije wrote:
>
>
>
>> Is *python3* an integral part of the command or does it mean I should 
>> run it in  *Python3*?
>>
>
> Yes python3 is a program that will execute python scripts. You should 
> supply your path to the folder you installed Leo in. Replace 
> 'path/to/leo-editor'  in the above command with the real path on your 
> computer. The rest of this path '/launchLeo.py' is file located inside Leo 
> folder.
>
> *python3: can't open file 'path/to/leo-editor/launchLeo.py': [Errno 2] No 
>> such file or directory*
>>
>> By the way, two days ago I have installed Ubuntu 18.04 on the new 
> computer, and full anaconda distribution of Python3. Then I have cloned Leo 
> repository and when I tried to start it, Leo exited with the core dump each 
> time. But when I started it with the debugger using:
> python3 -m pdb launchLeo.py
>
> Afterwards in the debugger prompt, 'c' for continuing program execution, 
> Leo started normaly. The strange thing is that after that, launching Leo 
> using usual 'python3 launchLeo.py' worked without problems.
>
> Perhaps you are seeing the same issue. 
>
> Vitalije
>

Stunningly obvious once someone explains it. I really should have seen it 
myself. My lack of knowledge of Python is making me miss the obvious 
sometimes.

   *python3 ~/leo-editor/launchLeo.py*  loaded Leo with no problem. 

A simple john@jonh-T510:~$ *leo* seems to be working fine. 

Thanks to you and Matt for all the help.

BTW, I am reading *The Entrepreneurial State *by Mariana Mazzucato and the 
book's front cover has a lion that looks a lot like Leo.

 

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