Python pandas: output dataframe to csv with integers

Question

I have a pandas.DataFrame that I wish to export to a CSV file. However, pandas seems to write some of the values as float instead of int

Answer 1

The answer I was looking for was a slight variation of what @Jeff proposed in his answer. The credit goes to him. This is what solved my problem in the end for reference:

    import pandas
    df = pandas.DataFrame(data, columns=['a','b','c','d'], index=['x','y','z'])
    df = df.fillna(0)
    df = df.astype(int)
    df.to_csv('test.csv', sep='\t')