CSV.DictReader

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'})

Source: docs.python.org

Python read csv

# pip install pandas 
import pandas as pd

# Read the csv file
data = pd.read_csv('data.csv')

# Print it out if you want
print(data)

Python csv reader

with open(r'c:\dl\FrameRecentSessions.csv') 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.')

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'}

Source: docs.python.org

Csv.dictreader example

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'})

CSV.DictReader

01
02
03
04
05
06
07
08
09
10
# importing DictReader class  from csv module
from csv import DictReader
 
# opening csv file named as airtravel.csv
with open('airtravel.csv','r') as file:
    reader = DictReader(file)
    print("Data:")
    # printing each row of table as dictionary 
    for row in reader:
        print(row)

Source: pythonpool.com

Similar codes

2 votes210 views2 answers
Nested loop
Python
6 votes239 views3 answers
Flask cors
Python Flask
2 votes191 views1 answer
What skills do you need to master pvp in minecraft
Python
0 vote200 views1 answer
Get center position of countries geopandas
Python
2 votes220 views1 answer
Find all color in image python
Python
0 vote263 views1 answer
Numpy is not nan
Python
1 vote214 views1 answer
Find sum of values in a column that corresponds to unique vallues in another coulmn python
Python
0 vote208 views2 answers
Convert uint8 to double in python
Python
3 votes251 views2 answers
Install flask on linux mint for python3
Python Flask
0 vote220 views1 answer
Python is inf
Python