﻿ Pandas: Add leading zeros to the integer column in a pandas series and makes the length of the field to 8 digit - w3resource

# Pandas: Add leading zeros to the integer column in a pandas series and makes the length of the field to 8 digit

## Pandas: String and Regular Expression Exercise-3 with Solution

Write a Pandas program to add leading zeros to the integer column in a pandas series and makes the length of the field to 8 digit.

Sample Solution:

Python Code :

``````import pandas as pd
nums = {'amount': [10, 250, 3000, 40000, 500000]}
print("Original dataframe:")
df = pd.DataFrame(nums)
print(df)
df['amount'] = df['amount'].apply(lambda x: '{0:0>8}'.format(x))
print(df)
``````

Sample Output:

```Original dataframe:
amount
0      10
1     250
2    3000
3   40000
4  500000

amount
0  00000010
1  00000250
2  00003000
3  00040000
4  00500000
```

Python Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.

﻿