﻿ Pandas: Get a list of a specified column of a DataFrame - w3resource # Pandas: Get a list of a specified column of a DataFrame

## Pandas: DataFrame Exercise-43 with Solution

Write a Pandas program to get a list of a specified column of a DataFrame.
Sample data:
Powered by Original DataFrame col1 col2 col3 0 1 4 7 1 2 5 8 2 3 6 9 Col2 of the DataFrame to list: [4, 5, 6]

Sample Solution :-

Python Code :

``````import pandas as pd
d = {'col1': [1, 2, 3], 'col2': [4, 5, 6], 'col3': [7, 8, 9]}
df = pd.DataFrame(data=d)
print("Original DataFrame")
print(df)
col2_list = df["col2"].tolist()
print("Col2 of the DataFrame to list:")
print(col2_list)
``````

Sample Output:

``` Powered by
Original DataFrame
col1  col2  col3
0     1     4     7
1     2     5     8
2     3     6     9
Col2 of the DataFrame to list:
[4, 5, 6]
```

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 Python skills with w3resource's quiz

﻿

## Python: Tips of the Day

Creates a dictionary with the same keys as the provided dictionary and values generated by running the provided function for each value

Example:

```def tips_map_values(obj, fn):
ret = {}
for key in obj.keys():
ret[key] = fn(obj[key])
return ret
users = {
'Owen': { 'user': 'Owen', 'age': 29 },
'Eddie': { 'user': 'Eddie', 'age': 15 }
}

print(tips_map_values(users, lambda u : u['age'])) # {'Owen': 29, 'Eddie': 15}
```

Output:

```{'Owen': 29, 'Eddie': 15}
```