Python: Python dictionary to a csv file and display the content
Python CSV File Reading and Writing: Exercise-11 with Solution
Write a Python program to write a Python dictionary to a csv file. After writing the CSV file read the CSV file and display the content.
Sample Solution:
Python Code :
import csv
csv_columns = ['id','Column1', 'Column2', 'Column3', 'Column4', 'Column5']
dict_data = {'id':['1', '2', '3'],
'Column1':[33, 25, 56],
'Column2':[35, 30, 30],
'Column3':[21, 40, 55],
'Column4':[71, 25, 55],
'Column5':[10, 10, 40], }
csv_file = "temp.csv"
try:
with open(csv_file, 'w') as csvfile:
writer = csv.DictWriter(csvfile, fieldnames=csv_columns)
writer.writeheader()
for data in dict_data:
writer.writerow(dict_data)
except IOError:
print("I/O error")
data = csv.DictReader(open(csv_file))
print("CSV file as a dictionary:\n")
for row in data:
print(row)
temp.csv
"country_id"|"country_name"|"region_id"
"AR"|"Argentina"| 2
"AU"|"Australia"| 3
"BE"|"Belgium"| 1
"BR"|"Brazil"| 2
"CA"|"Canada"| 2
Sample Output:
CSV file as a dictionary: OrderedDict([('id', "['1', '2', '3']"), ('Column1', '[33, 25, 56]'), ('Column2', '[35, 30, 30]'), ('Column3', '[21, 40, 55]'), ('Column4', '[71, 25, 55]'), ('Column5', '[10, 10, 40]')]) OrderedDict([('id', "['1', '2', '3']"), ('Column1', '[33, 25, 56]'), ('Column2', '[35, 30, 30]'), ('Column3', '[21, 40, 55]'), ('Column4', '[71, 25, 55]'), ('Column5', '[10, 10, 40]')]) OrderedDict([('id', "['1', '2', '3']"), ('Column1', '[33, 25, 56]'), ('Column2', '[35, 30, 30]'), ('Column3', '[21, 40, 55]'), ('Column4', '[71, 25, 55]'), ('Column5', '[10, 10, 40]')]) OrderedDict([('id', "['1', '2', '3']"), ('Column1', '[33, 25, 56]'), ('Column2', '[35, 30, 30]'), ('Column3', '[21, 40, 55]'), ('Column4', '[71, 25, 55]'), ('Column5', '[10, 10, 40]')]) OrderedDict([('id', "['1', '2', '3']"), ('Column1', '[33, 25, 56]'), ('Column2', '[35, 30, 30]'), ('Column3', '[21, 40, 55]'), ('Column4', '[71, 25, 55]'), ('Column5', '[10, 10, 40]')]) OrderedDict([('id', "['1', '2', '3']"), ('Column1', '[33, 25, 56]'), ('Column2', '[35, 30, 30]'), ('Column3', '[21, 40, 55]'), ('Column4', '[71, 25, 55]'), ('Column5', '[10, 10, 40]')])
Python Code Editor:
Have another way to solve this solution? Contribute your code (and comments) through Disqus.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.
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
- New Content published on w3resource:
- HTML-CSS Practical: Exercises, Practice, Solution
- Java Regular Expression: Exercises, Practice, Solution
- Scala Programming Exercises, Practice, Solution
- Python Itertools exercises
- Python Numpy exercises
- Python GeoPy Package exercises
- Python Pandas exercises
- Python nltk exercises
- Python BeautifulSoup exercises
- Form Template
- Composer - PHP Package Manager
- PHPUnit - PHP Testing
- Laravel - PHP Framework
- Angular - JavaScript Framework
- Vue - JavaScript Framework
- Jest - JavaScript Testing Framework