python - How to get the last chunk of a csv file using Pandas? -


suppose have csv file containing 5 rows.

now iterate on file using chunksize of 2.

data = pd.read_csv(data_name, header=none, iterator=true, chunksize=2)

suppose doing magic on data chunk , appending csv file. 

processed_data.to_csv(fname, index=none, mode="a")

problem: last row not written.

i not know how solve problem. can help?

i need use chunks because don't have enough ram.

i can not use chunksize=1, because opening/closing file time consuming.

if running out of memory use blaze type of data. https://blaze.readthedocs.io/en/latest/ooc.html

then don't have mess chunksize.


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