e79a178200* Allow install_python_stack to run on Colab The _COLAB_NO_VENV flag was setting _SKIP_PYTHON_DEPS=true, which skipped both the PyPI version check (needs $VENV_DIR/bin/python) and install_python_stack (uses sys.executable, works without a venv). Introduce a separate _SKIP_VERSION_CHECK flag for the version check, so install_python_stack still runs on Colab. The _SKIP_PYTHON_DEPS flag remains available for the "versions match" fast path. * Remove colab.py workarounds that broke transformers/hf-hub compatibility PR #4601 added _pip_install_backend_deps(), _bootstrap_studio_venv(), and _is_colab() to colab.py as workarounds for install_python_stack being skipped on Colab. These workarounds: - Stripped version constraints from studio.txt and installed into system Python - Upgraded huggingface-hub to >=1.0, breaking Colab's pre-installed transformers which requires huggingface-hub<1.0 With install_python_stack now running on Colab (previous commit), these workarounds are unnecessary — all deps are properly installed by setup.sh. Restore colab.py to its original PR #4237 structure: just get_colab_url(), show_link(), and start(). * Remove --local flag from setup.sh in Colab notebook The --local flag is not needed for the standard Colab flow since install_python_stack now runs on Colab and installs deps from PyPI. |
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