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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def guess_python_env():
 """Guess the default python env to use."""

    version, major, minor = get_version_info()
    if 'PyPy' in version:
        return 'pypy3' if major == 3 else 'pypy'
    return 'py{major}{minor}'.format(major=major, minor=minor)