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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 get_all_coeffs():
    '''Get all available calibration coefficients for the satellites.'''
    coeffs = {}

    for platform in URLS.keys():
        if platform not in coeffs:
            coeffs[platform] = {}
        for chan in URLS[platform].keys():
            url = URLS[platform][chan]
            print url
            page = get_page(url)
            coeffs[platform][chan] = get_coeffs(page)

    return coeffs