How do I convert a .tsv to .csv?

Question

Trying to convert a .tsv to a .csv. This:

import csv

# read tab-delimited file
with open(\'DataS1_interactome.tsv\',\'rb\') as fin:
    cr = csv.reader(fin         


        

Answer 1

TSV is a file type where fields are separated by tab. If you want to convert a TSV into a CSV (comma separated value) you just need to do a find and replace from TAB to COMMA.

Update:
As pointed out by don-roby, "There might be commas in the tsv", for that we use a regex to escape all the csv special characters as defines by rfc4180.

i.e.:

import re
tsv = open('tsv.tsv', 'r')
fileContent =  tsv.read()
appDesc = re.sub("""(?ism)(,|"|')""", r"\\\1", appDesc) # escape all especial charaters (" ' ,) rfc4180
fileContent = re.sub("\t", ",", fileContent) # convert from tab to comma
csv_file = open("csv.csv", "w")
csv_file.write(fileContent)
csv_file.close()