How to use the pycantonese.parse_jyutping function in pycantonese

age_to_tones[age] = Counter()
    
    for tagged_word in tagged_words:
        
        # jyutping should be like "gaa1jau2" (two syllables), "ngo5" (one syllable) etc
        mor = tagged_word[2]
        jyutping, _, _ = mor.partition('-')
        jyutping, _, _ = jyutping.partition('&')

        if not jyutping:
            continue
        
        # use PyCantonese to parse the "jyutping" str
        try:
            jyutping_parsed_list = pc.parse_jyutping(jyutping)
        except:
            continue
        
        for jyutping_parsed in jyutping_parsed_list:
            _, _, _, tone = jyutping_parsed  # (onset, nucleus, coda, tone)
            age_to_tones[age][tone] += 1


# Creating the dataframe for plotting the desired heatmap
# ---------------------------------------------------------------
# 
# The dataframe has three columns and is created by `data_dict`.

# In[17]:

data_dict = {'MHZ\'s age in months': list(),