How to use 'conda list environments' in Python

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def conda_env_exists(name):
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    r"""Determine if a conda environment already exists.
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    Args:
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        name (str): Name of the environment to check.
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    Returns:
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        bool: True the the environment exits, False otherwise.
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    """
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    args = ['conda', 'info', '--envs']
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    out = call_conda_command(args)
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    envs = []
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    for x in out.splitlines():
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        if x.startswith('#') or (not x):
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            continue
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        envs.append(x.split()[0])
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    return (name in envs)

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def handle(self):
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    from poetry.utils.env import EnvManager
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    manager = EnvManager(self.poetry)
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    current_env = manager.get()
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    for venv in manager.list():
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        name = venv.path.name
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        if self.option("full-path"):
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            name = str(venv.path)
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        if venv == current_env:
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            self.line("{} (Activated)".format(name))
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            continue
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        self.line(name)