Warning

[PallHaraldsson]

[PallHaraldsson]

FYI: I've been bitten by, while being able to run julia, $ whereis julia gets me nothing, and thus e.g. this package didn't work. The full path requirement is likely a security issue, and took me a while to realize.

Also:

$ snap install julia

sort of works, that is most of the time, until e.g. using your package (or was it PyCall? probably it needs a warning too).

Please hold of pulling (the latter) commit until I fix: https://stackoverflow.com/questions/10728420/editing-the-git-commit-message-in-github

I feel like an idiot for misspelling idiot. :) You may disagree with that commit, or want it slightly different anyway, so you be the judge. I just rather didn't want to commit a typo, even in the commit message. Do you know if it's simpler to change afterwards (or not possible) or before you accept?

[PallHaraldsson]

FYI: This package doesn't work: https://github.com/emmettgb/PyLathe/blob/master/Lathe/init.py

Nor his other package for me (both using pyjulia):

https://github.com/emmettgb/TopLoader

>>> import TopLoader
TopLoader V 0.0.1
Happy Loading!
-----------------
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.6/dist-packages/TopLoader/__init__.py", line 5, in <module>
    from julia import Pkg
ImportError: cannot import name 'Pkg'

[emmaccode]

Hmm there is a known bug on Ubuntu, are you using Ubuntu or Debian by chance?

[emmaccode]

The issue is that Snap and/or apt puts your Julia binaries into a different location than PyJulia looks for. I've encountered the same issue on a Chromebook with a Debian Docker image.... Fortunately, I daily drive Fedora, where this issue is non-existent. I have yet to come up with a good solution, but I'm guessing there is an environmental variable you could possibly change.

[PallHaraldsson]

Yes, using Ubuntu. If you look at the latter commit here, it might be that?

[PallHaraldsson]

For the both of you, while I got pyjulia working previously, and as late as today, I'm a bit mistified on why it stopped working, and I do not get further:

$ python3
>>> import julia
>>> julia.install(julia='/home/pharaldsson_sym/julia-1.4.0/bin/julia') # for any or no path known to work
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'module' object has no attribute 'install'

$ whereis julia
julia: /home/pharaldsson_sym/julia-1.5-ea669c3d3e/bin/julia

[tkf]

AttributeError: 'module' object has no attribute 'install'

This is strange. julia.install should be there if import julia succeeds (unless this PyJulia is very old). Maybe try dir(julia) when it happens and see if install is listed.

[PallHaraldsson]

This is strange. julia.install should be there if import julia succeeds (unless this PyJulia is very old).

Strange right, it's not just me. Worked previously in he day, with I guess latest (and still):

$ pip3 install julia
Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: julia in /home/pharaldsson_sym/.local/lib/python3.6/site-packages (0.5.3)

$ python3
Python 3.6.9 (default, Apr 18 2020, 01:56:04) 
[GCC 8.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> dir(julia) 
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'julia' is not defined
>>> import julia
>>> dir(julia) 
['Julia', 'JuliaError', '__builtins__', '__cached__', '__doc__', '__file__', '__loader__', '__name__', '__package__', '__path__', '__spec__', 'core']
>>> 

[tkf]

If your PyJulia does not even have __version__, it's probably very old. You need to update it. Maybe try python3 -m pip install --upgrade julia?

[PallHaraldsson]

At least the warning for core.py could be helpful. Maybe this got forgotten as "21 expected" checks? I've never seen such before, and this has been stalled for long...