How do I format a list a column?

Question

I need to format a list into a column.

a = [1,2,3,4,5] The desired output:

         a
0        1
1        2
2        3
3        4
4        5

Answer 1

You can use str.format:

a = [1, 2, 3, 4, 5]

print("{:<10} {:<10}".format("", "a"))
for i, v in enumerate(a):
    print("{:<10} {:<10}".format(i, v))

Prints:

           a         
0          1         
1          2         
2          3         
3          4         
4          5         

---

Or making a DataFrame:

import pandas as pd

df = pd.DataFrame(a, columns=["a"])
print(df)

Prints:

   a
0  1
1  2
2  3
3  4
4  5