I have been trying to figure out a simple way to replace the integers within a string with x's in python. I was able to get something ok by doing the following:

```
In [73]: string = "martian2015"
In [74]: string = list(string)

In [75]: for n, i in enumerate(string):
   ....:     try:
   ....:         if isinstance(int(i), int):
   ....:             string[n]='x'
   ....:     except ValueError:
   ....:         continue

```

This actually yields something like the following:

```
In [81]: string
Out[81]: ['m', 'a', 'r', 't', 'i', 'a', 'n', 'x', 'x', 'x', 'x']
In [86]: joiner = ""

In [87]: string = joiner.join(string)

In [88]: string
Out[88]: 'martianxxxx'

```

My question is: is there any way of getting the result in a ***simpler manner*** without relying on *error/exception handling*?