num2words module in Python, which converts number (like 34) to words (like thirty-four). Also, this library has support for multiple languages. In this article, we will see how to convert number to words using
One can easily install
num2words using pip.
pip install num2words
Consider the following two excerpts from different files taken from 20 Newsgroups, a popular NLP database. Pre-processing 20 Newsgroups effectively has remained to be a matter of interest.
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In the above two excerpts, one can observe that the number ’20’ appears in both numeric and alphabetical forms. Simply following the pre-processing steps, that involve tokenization, lemmatization and so on would not be able to map ’20’ and ‘twenty’ to the same stem, which is of contextual importance. Luckily, we have the in-built library,
num2words which solves this problem in a single line.
Below is the sample usage of the tool.
thirty-six thirty-sixth 36th zero euro, thirty-six cents treinta y seis
Therefore, in the pre-processing step, one could convert ALL numeric values to words for better accuracy in the further stages.
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