Execution stuck after "importing data...."

[happyreaper]

I am using the csv_example.py to train some data. The data was in excel and then stored as csv. Dataset size is roughly 180K rows, 43 columns and 133MB. One change that was made to the original code was that I added encoding=utf-8-sig attribute to the file reading operation in the readData method. When I run the script in the command line(Anaconda prompt with base environment). The execution freezes/runs endlessly after executing the deduper.prepare_training(data_d)