Removing everything except letters and spaces from string in Python3.3

Question

I have this example string: `happy t00 go 129.129` and I want to keep only the spaces and letters. All I have been able to come up with so far that is pretty efficient is: ``` print(re.sub("\d", "", 'happy t00 go 129.129'.replace('.', ''))) ``` but it is only specific to my example string. How can remove all characters other than letters and spaces?

Accepted Answer

```
whitelist = set('abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ')
myStr = "happy t00 go 129.129$%^&*("
answer = ''.join(filter(whitelist.__contains__, myStr))
```

Output:

```
>>> answer
'happy t go '
```

Removing everything except letters and spaces from string in Python3.3

Solution

Problem