Answers for "csv read"

38

csv python write

import csv

with open('names.csv', 'w') as csvfile:
    fieldnames = ['first_name', 'last_name']
    writer = csv.DictWriter(csvfile, fieldnames=fieldnames)

    writer.writeheader()
    writer.writerow({'first_name': 'Baked', 'last_name': 'Beans'})
    writer.writerow({'first_name': 'Lovely', 'last_name': 'Spam'})
    writer.writerow({'first_name': 'Wonderful', 'last_name': 'Spam'})
Posted by: Guest on March-10-2020
5

python csv dict reader

>>> import csv
>>> with open('names.csv', newline='') as csvfile:
...     reader = csv.DictReader(csvfile)
...     for row in reader:
...         print(row['first_name'], row['last_name'])
...
Eric Idle
John Cleese

>>> print(row)
{'first_name': 'John', 'last_name': 'Cleese'}
Posted by: Guest on August-13-2020
7

files python csv

import csv

with open('employee_birthday.txt') as csv_file:
    csv_reader = csv.reader(csv_file, delimiter=',')
    line_count = 0
    for row in csv_reader:
        if line_count == 0:
            print(f'Column names are {", ".join(row)}')
            line_count += 1
        else:
            print(f't{row[0]} works in the {row[1]} department, and was born in {row[2]}.')
            line_count += 1
    print(f'Processed {line_count} lines.')
Posted by: Guest on May-01-2020
0

reading csv data

int main() {
    string line;
    vector<string> rawdata;
    ifstream file ( "/Users/mewtwo/Desktop/Programs/seals.csv" );
    while(getline(file, line)) {
        stringstream ss(line);
        while (getline(ss, line, ',')) {
            rawdata.push_back(line);
        }

    }
    cout << rawdata[55] << endl;
    
    
    return 0;
}
Posted by: Guest on August-02-2021

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