Python 3 - '_csv.Error: line contains NULL' error byte when reading csv file

问题

I'm trying to read a csv file that contains NUL with csv reader I search a lot for a way to read the file without an error and couldn't find one.

Edit: Adding the relevant section of the file: https://drive.google.com/open?id=1rtF3ck6QymtH4_n4iUjavPnxZiryq_Q4

My code:

   with codecs.open(log_path, 'r') as csv_file:
        log_reader = csv.DictReader(csv_file)
        for line in log_reader:
            if line['Addition Information'] == str 
               # do something 

Will appreciate any help Thanks, Avishay

回答1:

csv.reader() (and therefore also csv.DictReader()) simply can't deal with files containing null bytes.

A possible solution would be to replace null bytes when reading the input file, e.g. by using a generator expression, since reader() takes any object supporting the iterator protocol as argument:

with codecs.open(log_path, 'r') as csv_file:
    log_reader = csv.DictReader((l.replace('\0', '') for l in csv_file))
    for line in log_reader:
        if line['Addition Information'] == str 
           # do something 

回答2:

Try to modify your code like this:

with codecs.open(log_path, 'r', encoding='utf-8', errors='backslashreplace') as csv_file:
        log_reader = csv.DictReader(csv_file)
        for line in log_reader:
            if line['Addition Information'] == str 
               # do something 

来源：https://stackoverflow.com/questions/49794302/python-3-csv-error-line-contains-null-error-byte-when-reading-csv-file