No support sep paramter

[h1542462994]

Csv has an optional parameter at the header line.

For example

"sep=;"
a;b;
1;2;
3;4;

It is a csv which represents:

a	b
1	2
3	4

But when i use the csv to parse it, i fould the result list which contain the first line "sep=;", and also the empty column will be included.

The result list will be:

list[0]=["sep=;"]
list[1]=["a","b",""]
list[2]=[1,2,""]
list[3]=[3,4,""]

Is there are any optional parameter to assign the sep parameter? I current use csv which version number is '5.0.2'.