word_tag = line[:-1] + "/" + line[-1]

line: ['#', 'DELM']

if word_tag in emissionProbDict.keys():
        emissionProbDict[word_tag] = emissionProbDict[word_tag] + line.count(word_tag)
    else:
        emissionProbDict[word_tag] = line.count(word_tag)

word_tag = line[:-1] +["/"] + [line[-1]]

word_tag=''.join(line[:-1]) + '/' + line[-1]

line = ['#', 'DELM']

word_tag = line[:-1]     # list
word_tag.append("/")     # append element to list
word_tag.append(line[1]) # append element to list

word_tag = line[:-1] + [ "/" ] + [ line[1] ]

word_tag = line[:-1] + [ "/", line[1] ]

word_tag = line[:-1]
word_tag.extend( [ "/", line[1] ] )

word_tag = "".join( word_tag )

word_tag = "".join( line[:-1] )  + "/" + line[1]