Python: Read specific columns of a given CSV file and print the content of the columns
Python CSV File Reading and Writing: Exercise-7 with Solution
Write a Python program to read specific columns of a given CSV file and print the content of the columns.
Sample Solution:
Python Code :
import csv
with open('departments.csv', newline='') as csvfile:
data = csv.DictReader(csvfile)
print("ID Department Name")
print("---------------------------------")
for row in data:
print(row['department_id'], row['department_name'])
departments.csv
department_id,department_name,manager_id,location_id
10,Administration,200,1700
20,Marketing,201,1800
30,Purchasing,114,1700
40,Human Resources,203,2400
50,Shipping,121,1500
60,IT,103,1400
70,Public Relations,204,2700
80,Sales,145,2500
90,Executive,100,1700
100,Finance,108,1700
110,Accounting,205,1700
120,Treasury,,1700
130,Corporate Tax,,1700
140,Control And Credit,,1700
150,Shareholder Services,,1700
160,Benefits,,1700
170,Manufacturing,,1700
180,Construction,,1700
190,Contracting,,1700
200,Operations,,1700
210,IT Support,,1700
220,NOC,,1700
230,IT Helpdesk,,1700
240,Government Sales,,1700
250,Retail Sales,,1700
260,Recruiting,,1700
270,Payroll,,1700
Sample Output:
ID Department Name --------------------------------- 10 Administration 20 Marketing 30 Purchasing 40 Human Resources 50 Shipping 60 IT 70 Public Relations 80 Sales 90 Executive 100 Finance 110 Accounting 120 Treasury 130 Corporate Tax 140 Control And Credit 150 Shareholder Services 160 Benefits 170 Manufacturing 180 Construction 190 Contracting 200 Operations 210 IT Support 220 NOC 230 IT Helpdesk 240 Government Sales 250 Retail Sales 260 Recruiting 270 Payroll
Python Code Editor:
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Previous: Write a Python program that reads a CSV file and remove initial spaces, quotes around each entry and the delimiter.
Next: Write a Python program that reads each row of a given csv file and skip the header of the file. Also print the number of rows and the field names.
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Python: Tips of the Day
Find current directory and file's directory:
To get the full path to the directory a Python file is contained in, write this in that file:
import os dir_path = os.path.dirname(os.path.realpath(__file__))
(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)
To get the current working directory use
import os cwd = os.getcwd()
Documentation references for the modules, constants and functions used above:
- The os and os.path modules.
- The __file__ constant
- os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
- os.path.dirname(path) (returns "the directory name of pathname path")
- os.getcwd() (returns "a string representing the current working directory")
- os.chdir(path) ("change the current working directory to path")
Ref: https://bit.ly/3fy0R6m
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