=== From file
{{{c
import csv

data = []
with open(filename) as csvfile:
    reader = csv.reader(csvfile)
    for row in reader:
        data.append(row)
}}}

=== From string
Use {{{StringIO}}}
{{{c
from io import StringIO
import csv

scsv = """text,with,Polish,non-Latin,letters
1,2,3,4,5,6
a,b,c,d,e,f
gęś,zółty,wąż,idzie,wąską,dróżką,
"""

f = StringIO(scsv)
reader = csv.reader(f, delimiter=',')
for row in reader:
    print('\t'.join(row))
}}}%TIME=1619453102