Data commit

Task/CSV-data-manipulation/Python/csv-data-manipulation-1.py

@@ -0,0 +1,11 @@
+import fileinput
+
+changerow, changecolumn, changevalue = 2, 4, '"Spam"'
+
+with fileinput.input('csv_data_manipulation.csv', inplace=True) as f:
+    for line in f:
+        if fileinput.filelineno() == changerow:
+            fields = line.rstrip().split(',')
+            fields[changecolumn-1] = changevalue
+            line = ','.join(fields) + '\n'
+        print(line, end='')

Task/CSV-data-manipulation/Python/csv-data-manipulation-2.py

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+import csv
+from pathlib import Path
+from tempfile import NamedTemporaryFile
+
+filepath = Path('data.csv')
+temp_file = NamedTemporaryFile('w',
+                               newline='',
+                               delete=False)
+
+with filepath.open() as csv_file, temp_file:
+    reader = csv.reader(csv_file)
+    writer = csv.writer(temp_file)
+
+    header = next(reader)
+    writer.writerow(header + ['SUM'])
+
+    for row in reader:
+        row_sum = sum(map(int, row))
+        writer.writerow(row + [row_sum])
+
+temp_file_path = Path(temp_file.name)
+temp_file_path.replace(filepath)

Task/CSV-data-manipulation/Python/csv-data-manipulation-3.py

@@ -0,0 +1,8 @@
+import pandas as pd
+
+filepath = 'data.csv'
+
+df = pd.read_csv(filepath)
+rows_sums = df.sum(axis=1)
+df['SUM'] = rows_sums
+df.to_csv(filepath, index=False)