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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 launch_ipython(argv=None):
 """ Force usage of QtConsole under Windows """

    from .linux import launch_ipython as _launch_ipython_linux
    os.environ = {str(k): str(v) for k,v in os.environ.items()}
    try:
        from qtconsole.qtconsoleapp import JupyterQtConsoleApp
    except ImportError:
        sys.exit("ERROR: IPython QtConsole not installed in this environment. "
                 "Try with `conda install jupyter ipython qtconsole`")
    else:
        _launch_ipython_linux(ipython_app=JupyterQtConsoleApp)