4 examples of 'how to check python version in jupyter notebook' in Python

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def check_python_version():
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    if sys.version_info < (3, 5):
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        stderr.write("DistAlgo requires Python version 3.5 or newer.\n")
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        return False
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    else:
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        return True

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def check_python(version):
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    required_version = tuple(int(i) for i in version.split('.'))
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    actual_version = sys.version_info[:2]
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    assert actual_version >= required_version, (
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        'Must use at least Python %s but have version %d.%d' %
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        (version, actual_version[0], actual_version[1]))

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def _in_ipynb():
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    """Check if we are running in a Jupyter Notebook
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    Credit to https://stackoverflow.com/a/24937408/3996580
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    """
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    __VALID_NOTEBOOKS = ["<class 'google.colab._shell.Shell'>",
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                         "<class 'ipykernel.zmqshell.ZMQInteractiveShell'>"]
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    try:
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        return str(type(get_ipython())) in __VALID_NOTEBOOKS
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    except NameError:
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        return False

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@nox.session(python=PYTHON_VERSIONS)
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def test_jupyter_notebook(session):
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    if session.python not in DEFAULT_PYTHON_VERSIONS:
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        session.skip(
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            "Not testing Jupyter notebook on Python {}, supports [{}]".format(
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                session.python, ",".join(DEFAULT_PYTHON_VERSIONS)
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            )
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        )
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    deps(session)
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    session.install("jupyter", "nbval")
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    session.run("pytest", "--nbval", "docs/notebook/Tutorial.ipynb", silent=True)