sage with python3

[Александр Ватузов]

Hi! I have an instruction here https://wiki.sagemath.org/Python3-compatible%20code , how to build sage with python3. But sage uses, I think, its own python3. So when sage wants to import something, sage can't do it, because libs are installed on system python3. Mosule six for example. I had an idea, make smth like this:

import importlib.util

spec = importlib.util.spec_from_file_location("six", "/usr/lib/python3/dist-packages/six.py")

six = importlib.util.module_from_spec(spec)

spec.loader.exec_module(six)

but it doesn't work with numpy. Help me please! May be I can change sage python to my system python3?

[Dima Pasechnik]

Several Linux distributions and Conda install Sage with system (in case of Conda it is Conda's Python) Python; they have patches allowing them to do so.

Not sure which ones already have this for Python3 (apart from Conda).

And we are planning to allow the use of system Python in the source Sage installation, too, but it is quite a bit of work.

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[Александр Ватузов]

I resolved this problem by changing sys.path. Do you know about any problems with ubuntu19.09? I lost my installed sage after upgrade from 19.04, I don't see sage on reposytory...

But I still can download and run standart sage with python2.7

суббота, 2 ноября 2019 г., 16:17:00 UTC+3 пользователь Dima Pasechnik написал:

Several Linux distributions and Conda install Sage with system (in case of Conda it is Conda's Python) Python; they have patches allowing them to do so.

Not sure which ones already have this for Python3 (apart from Conda).

And we are planning to allow the use of system Python in the source Sage installation, too, but it is quite a bit of work.

On Sat, 2 Nov 2019, 15:04 Александр Ватузов, <amva...@gmail.com> wrote:

Hi! I have an instruction here https://wiki.sagemath.org/Python3-compatible%20code , how to build sage with python3. But sage uses, I think, its own python3. So when sage wants to import something, sage can't do it, because libs are installed on system python3. Mosule six for example. I had an idea, make smth like this:

import importlib.util

spec = importlib.util.spec_from_file_location("six", "/usr/lib/python3/dist-packages/six.py")

six = importlib.util.module_from_spec(spec)

spec.loader.exec_module(six)

but it doesn't work with numpy. Help me please! May be I can change sage python to my system python3?

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