Add digits to the left of a value

Question

Given the following DataFrame of pandas in Python:

ID	code	color
0	14563	red
1	4563	blue
2	1463	green
3	82930	red
4	903	green
5	18392	red

For the code column, I want that if the value has 4 digits or less, fill in with leading zeros until they have five digits.

ID	code	color
0	14563	red
1	04563	blue
2	01463	green
3	82930	red
4	00903	green
5	18392	red

Answer 1

try:

df['code'] = df['code'].str.zfill(5)

check: https://pandas.pydata.org/pandas-docs/stable/user_guide/text.html

you can add astype(str) if the code column is int and not str like:

 df['code'] = df['code'].astype(str).str.zfill(5)