BDEA_Aufgabe1/Preprocess/03_separate_home_dest.py

37 lines
1.5 KiB
Python

import csv
input_file = "../data/passengers.csv"
output_file = "../data/passengers2.csv"
with open(input_file, 'r') as csv_input:
with open(output_file, 'w', newline='') as csv_output:
reader = csv.reader(csv_input)
writer = csv.writer(csv_output)
# Iterate through each row in the CSV
for row in reader:
# Get the last field in the row
location = row[-1]
# Split the location into two parts if it contains '/' and ','
if '/' in location and ',' in location:
location1, location2 = location.split('/')
# Further split location1 into city1 and country1
city1, country_state1 = location1.split(',', 1)
# Further split location2 into city2 and country2
city2, country_state2 = location2.split(',', 1)
elif ',' in location:
city1, country_state1 = location.split(',', 1)
# For the second location, set to empty strings
city2, country_state2 = "", ""
else:
# If no city and country details are present
city1, country_state1, city2, country_state2 = "", "", "", ""
# Now replace the last field with the 4 new fields
row[-1:] = [city1.strip(), country_state1.strip(), city2.strip(), country_state2.strip()]
# Write the row into the new csv file
writer.writerow(row)