I am just starting pandas so please forgive if this is something stupid.
I am trying to apply a function to a column but its not working and i don't see any errors also.
capitalizer = lambda x: x.upper()
for df in pd.read_csv(downloaded_file, chunksize=2, compression='gzip', low_memory=False):
df['level1'].apply(capitalizer)
print df
exit(1)
This print shows the level1
column values same as the original csv not doing upper
. Am i missing something here ?
Thanks
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