save list as csv python code example

Example 1: how to convert list into csv in python

import pandas as pd    

list1 = [1,2,3,4,5]
df = pd.DataFrame(list1)
df.to_csv('filename.csv', index=False)

#index =false removes unnecessary indexing/numbering in the csv

Example 2: list to csv

import csv

with open("out.csv", "w", newline="") as f:
    writer = csv.writer(f)
    writer.writerows(a)

Example 3: write a list into csv python

# Convert a list into rows for a column in csv

import csv
for_example = [1, 2, 3, 4, 5, 6]
with open('output.csv', 'w', newline='') as csv_1:
  csv_out = csv.writer(csv_1)
  csv_out.writerows([for_example[index]] for index in range(0, len(for_example)))

Example 4: python save as csv

import numpy as np
np.savetxt('data.csv', (col1_array, col2_array, col3_array), delimiter=',')