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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 trimSpectrum(sp, minw, maxw):
 """Create a new spectrum with trimmed upper and lower ranges. Parameters sp : `SourceSpectrum` Spectrum to trim. minw, maxw : number Lower and upper limits (inclusive) for the wavelength set in the trimmed spectrum. Returns ------- result : `TabularSourceSpectrum` Trimmed spectrum. """

    wave = sp.GetWaveSet()
    flux = sp(wave)

    new_wave = N.compress(wave >= minw, wave)
    new_flux = N.compress(wave >= minw, flux)

    new_wave = N.compress(new_wave <= maxw, new_wave)
    new_flux = N.compress(new_wave <= maxw, new_flux)

    result = TabularSourceSpectrum()

    result._wavetable = new_wave
    result._fluxtable = new_flux

    result.waveunits = units.Units(sp.waveunits.name)
    result.fluxunits = units.Units(sp.fluxunits.name)

    return result