处理CSV单元格值中的逗号和引号

Question

I am using python's csv reader but some columns are failing to process because they contain a comma or quote.

How can you get the correct string?

For example one cell says:

"['one', 'two', 'three']"

but it gives me:

"['one'

if os.path.exists(CSV_PATH):
    with open(CSV_PATH, 'r') as csv_file:
        reader = csv.reader(csv_file, delimiter=',', quotechar='|')
        field_list = []
        for row in reader:
            if not field_list:
                field_list = [c for c in row]
                continue

            d = dict.fromkeys(field_list)
            for header, col in zip(field_list, row):
                print(col)  

Answer 1

You can use escapechar attribute with some prefix symbol:

A one-character string used by the writer to escape the delimiter if quoting is set to QUOTE_NONE and the quotechar if doublequote is False. On reading, the escapechar removes any special meaning from the following character. It defaults to None, which disables escaping.

Also you can use doublequote attribute with " symbol:

Controls how instances of quotechar appearing inside a field should themselves be quoted. When True, the character is doubled. When False, the escapechar is used as a prefix to the quotechar. It defaults to True.

On output, if doublequote is False and no escapechar is set, Error is raised if a quotechar is found in a field.