A python script that reads a CSV file and writes it out with a different delimiter.

ChangeCSVdelimiter.py

# -*- coding: utf-8 -*-
import csv
from tempfile import NamedTemporaryFile
import shutil

readfile = "SOME\\PATH\\input.csv"
writefile = "SOME\\PATH\\output.csv"
tempfile = NamedTemporaryFile(delete=False)

with open(readfile, 'rb') as csvfilein, tempfile:
	reader = csv.reader(csvfilein, delimiter='|', quotechar='"')
	writer = csv.writer(tempfile, delimiter=';', quotechar='"')
	for row in reader:
		writer.writerow(row)
shutil.move(tempfile.name, writefile)

print "done"