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Forked from astanin/
Created March 27, 2012 12:06
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Pretty-print CSV file with fixed width columns.
#!/usr/bin/env python2
# -*- coding: utf-8 -*-
Usage: %prog [width [columns]] < table.csv
Pretty-print CSV file with fixed width columns.
width maximum width of the column, long text is truncated
columns coma-separated numbers or ranges, like "1,2,6-8";
column numbering starts from 1.
import csv
from sys import argv, stdin
from os.path import basename
def u(s):
return unicode(s, "utf-8")
def truncate(s, width):
if len(s) < width:
return s
return s[:(width-1)] + u"…"
def main():
w = int(argv[1]) if len(argv) > 1 else 10
cols = argv[2] if len(argv) > 2 else "1-9999"
cols = [ tuple(map(int,rng.split("-")[:2]))
if "-" in rng
else int(rng)
for rng in cols.split(",") ]
r = csv.reader(stdin)
for ln in r:
ranges = [ ln[rng[0]-1:rng[1]] if type(rng) == tuple else [ln[rng-1]]
for rng in cols ]
fields = [ fld for rng in ranges for fld in rng ] # concat
print " ".join([ "%*s" % (w, truncate(u(fld),w)) for
fld in fields ])
def usage():
print __doc__.replace("%prog", basename(argv[0]))
if __name__ == "__main__":
if "--help" in argv or "-h" in argv:
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