Refactor Makefile to include venv creation and dependency installation

[adarshan-intel]

Description:
This commit refactors the pytorch example Makefile to automate the creation of a virtual environment (venv) and the installation of necessary dependencies. The changes ensure that the environment setup is streamlined and dependencies are consistently installed without user intervention.

Changes:

• Makefile:

  • Added steps to create and activate a virtual environment.
  • Included commands to install torchvision and pillow packages.
  • Updated the all target to depend on the venv creation.
  • Modified the distclean target to remove the virtual environment directory.

• README.md:

  • Removed manual steps for creating a virtual environment and installing dependencies.

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This change is 

[adarshan-intel]

@kailun-qin @woju @mkow Can you review?

[woju]

Reviewed 2 of 2 files at r1, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion, not enough approvals from maintainers (2 more required), not enough approvals from different teams (2 more required, approved so far: ) (waiting on @adarshan-intel)

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pytorch/Makefile line 9 at r1 (raw file):

THIS_DIR := $(dir $(lastword $(MAKEFILE_LIST)))
VENV_DIR ?= $(THIS_DIR)/my_venv

If you're creating this virtual environment in the script, you probably want to add it to .gitignore. IIUC it wasn't there before, because it was supposed to be created (and removed) by the user.

[adarshan-intel]

Reviewable status: 2 of 3 files reviewed, 1 unresolved discussion, not enough approvals from maintainers (2 more required), not enough approvals from different teams (2 more required, approved so far: ), "fixup! " found in commit messages' one-liners (waiting on @woju)

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pytorch/Makefile line 9 at r1 (raw file):

Previously, woju (Wojtek Porczyk) wrote…

If you're creating this virtual environment in the script, you probably want to add it to .gitignore. IIUC it wasn't there before, because it was supposed to be created (and removed) by the user.

Done.
Good catch.

[woju]

Reviewed 1 of 1 files at r2, all commit messages.
Reviewable status: all files reviewed, all discussions resolved, not enough approvals from maintainers (1 more required), not enough approvals from different teams (1 more required, approved so far: ITL), "fixup! " found in commit messages' one-liners

[kailun-qin]

Reviewed 2 of 2 files at r1, 1 of 1 files at r2, all commit messages.
Reviewable status: all files reviewed, all discussions resolved, "fixup! " found in commit messages' one-liners