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Python - Convert Bytes / Unicode Tab Delimited Data To Csv File

I'm pulling the following line of data from an API. The data starts with a b prefix which would indicate according to the Python 3.3 documentation that we are dealing with 'a bytes

Solution 1:

Well you are getting the error because you wish to write the data to the csv file but in the for loop you are trying to read from the file. If I understand correctly, you wish to take in the bytes object, and write it nicely into a tab separated csv file. The following code would do that:

import csv, re

orig = b'settlement-id\tsettlement-start-date\tsettlement-end-date\tdeposit-date\ttotal-amount\tcurrency\ttransaction-type\torder-id\tmerchant-order-id\tadjustment-id\tshipment-id\tmarketplace-name\tamount-type\tamount-description\tamount\tfulfillment-id\tposted-date\tposted-date-time\torder-item-code\tmerchant-order-item-id\tmerchant-adjustment-item-id\tsku\tquantity-purchased\n7293436482\t03.05.2018 09:10:07 UTC\t04.05.2018 20:30:23 UTC\t06.05.2018 20:30:23 UTC\t53,44\tEUR\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n7293436482\t\t\t\t\t\tOrder\t303-3746292-6119509\t\t\tDRGC8lFbB\tAmazon.de\tItemPrice\tPrincipal\t179,99\tMFN\t03.05.2018\t03.05.2018 17:12:22 UTC\t30407746733299\t\t\t3700546702556-180412-chp-18c10347-1\t1\n7293436482\t\t\t\t\t\tOrder\t303-3746292-6119509\t\t\tDRGC8lFbB\tAmazon.de\tItemFees\tCommission\t-32,40\tMFN\t03.05.2018\t03.05.2018 17:12:22 UTC\t30407746733299\t\t\t3700546702556-180412-chp-18c10347-1\t1\n7293436482\t\t\t\t\t\tRefund\t305-1251749-5602732\t305-1251749-5602732\tamzn1:crow:YZkTuxs4RhO8FpZez3cGCg\t\tAmazon.de\tItemPrice\tPrincipal\t-109,99\tAFN\t04.05.2018\t04.05.2018 18:24:39 UTC\t38048998219979\t\t142721169810\t3700546702082-180124-jpn-131N28-6\t\n7293436482\t\t\t\t\t\tRefund\t305-1251749-5602732\t305-1251749-5602732\tamzn1:crow:YZkTuxs4RhO8FpZez3cGCg\t\tAmazon.de\tItemFees\tCommission\t19,80\tAFN\t04.05.2018\t04.05.2018 18:24:39 UTC\t38048998219979\t\t142721169810\t3700546702082-180124-jpn-131N28-6\t\n7293436482\t\t\t\t\t\tRefund\t305-1251749-5602732\t305-1251749-5602732\tamzn1:crow:YZkTuxs4RhO8FpZez3cGCg\t\tAmazon.de\tItemFees\tRefundCommission\t-3,96\tAFN\t04.05.2018\t04.05.2018 18:24:39 UTC\t38048998219979\t\t142721169810\t3700546702082-180124-jpn-131N28-6\t\n'

# Split the long string into a list of lines
data = orig.decode('utf-8').splitlines()

# Open the file for writing
with open("tmp.csv", "w") as csv_file:
    # Create the writer object with tab delimiter
    writer = csv.writer(csv_file, delimiter = '\t')
    for line in data:
        # Writerow() needs a list of data to be written, so split at all empty spaces in the line 
        writer.writerow(re.split('\s+',line))

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