[conda] No virtualenv's on windows?

[Tfer]

Are "true" virtualenv not supported on windows? By that I mean
environments where the installed packages are just hardlinks to the
packages in another environment.

I ran "conda create -n Leo-QT5_10 --clone base" thinking it would just
create links, but it tried to download and install a new copy of each
package!, (a task that it choked on).

I assume this is just a windows thing, you people on Linux must have
virtualenvs.

This is probably due to conda running in cmd.exe, way primitive compared to
Powershell where it should be.

Do people on windows just ditch conda's environments and use another system?

Tom

[Tfer]

I used " conda create -n Leo-QT5_10 --clone base", it said it was
downloading and installing the packages in base, (python 3.6 with the conda
modules -- which it said it would skip). I really looked like it was
download and installing each package, (line by line, with percent completed
bars), not just the performing windows equivalent of symlinking each
installed package in base. My use "virtualenv" was meant as the linking
behavior which I'm not seeing.

Tom

Conda *only* installs packages into conda environments. Once conda
installs something into a directory, that directory becomes a conda
environment.
Hard links from the package cache are on by default on Windows. Windows
doesn’t support soft links without extra OS-level configuration.
Sent from my iPhone
I have no idea what you mean by true virtualenvs, please explain.
There exists virtualenv, venv and conda envs. Of the three conda envs are
the most powerful and efficient by far and therefore recommended way to
drive conda.

Post by Tfer
Are "true" virtualenv not supported on windows? By that I mean
environments where the installed packages are just hardlinks to the
packages in another environment.
I ran "conda create -n Leo-QT5_10 --clone base" thinking it would just
create links, but it tried to download and install a new copy of each
package!, (a task that it choked on).
I assume this is just a windows thing, you people on Linux must have
virtualenvs.
This is probably due to conda running in cmd.exe, way primitive compared
to Powershell where it should be.
Do people on windows just ditch conda's environments and use another system?
Tom
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[Tfer]

Just the use of links rather than file by file copies of the packages.

I have no idea what you mean by true virtualenvs, please explain.
There exists virtualenv, venv and conda envs. Of the three conda envs are
the most powerful and efficient by far and therefore recommended way to
drive conda.

Post by Tfer
Are "true" virtualenv not supported on windows? By that I mean
environments where the installed packages are just hardlinks to the
packages in another environment.
I ran "conda create -n Leo-QT5_10 --clone base" thinking it would just
create links, but it tried to download and install a new copy of each
package!, (a task that it choked on).
I assume this is just a windows thing, you people on Linux must have
virtualenvs.
This is probably due to conda running in cmd.exe, way primitive compared
to Powershell where it should be.
Do people on windows just ditch conda's environments and use another system?
Tom
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['Chris Barker' via conda - Public]

is there a chance that your main install is on a network drive? I don't
think Windows can link across drives....

-CHB

Post by Tfer
Just the use of links rather than file by file copies of the packages.

I have no idea what you mean by true virtualenvs, please explain.
There exists virtualenv, venv and conda envs. Of the three conda envs are
the most powerful and efficient by far and therefore recommended way to
drive conda.

Post by Tfer
Are "true" virtualenv not supported on windows? By that I mean
environments where the installed packages are just hardlinks to the
packages in another environment.
I ran "conda create -n Leo-QT5_10 --clone base" thinking it would just
create links, but it tried to download and install a new copy of each
package!, (a task that it choked on).
I assume this is just a windows thing, you people on Linux must have
virtualenvs.
This is probably due to conda running in cmd.exe, way primitive compared
to Powershell where it should be.
Do people on windows just ditch conda's environments and use another system?
Tom
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[Tfer]

The're on the same local drive. My "base" install is a full anaconda with
python 3.6.5 . I created two env's with all of anaconda's packages;
conda create -n Leo_f-PyOT5_10 anaconda
and the the second by:
conda create -n Leo_f --offline anaconda

both took quite a while to finish, though they didn't report each package
and run a percent complete like trying to use "... --clone", (this is what
started me doubting the env's were using file linking).

I'm getting what I need though I still doubt linking is being used, have to
inspect the env's with some file tools to wee what's up.

Tom

Post by 'Chris Barker' via conda - Public
is there a chance that your main install is on a network drive? I don't
think Windows can link across drives....
-CHB

Post by Tfer
Just the use of links rather than file by file copies of the packages.

I have no idea what you mean by true virtualenvs, please explain.
There exists virtualenv, venv and conda envs. Of the three conda envs
are the most powerful and efficient by far and therefore recommended way to
drive conda.

Post by Tfer
Are "true" virtualenv not supported on windows? By that I mean
environments where the installed packages are just hardlinks to the
packages in another environment.
I ran "conda create -n Leo-QT5_10 --clone base" thinking it would just
create links, but it tried to download and install a new copy of each
package!, (a task that it choked on).
I assume this is just a windows thing, you people on Linux must have
virtualenvs.
This is probably due to conda running in cmd.exe, way primitive
compared to Powershell where it should be.
Do people on windows just ditch conda's environments and use another system?
Tom
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--
Christopher Barker, Ph.D.
Oceanographer
Emergency Response Division
NOAA/NOS/OR&R [phone] voice
7600 Sand Point Way NE [phone] fax
Seattle, WA 98115 [phone] main reception