So I have been have an issue at trying to remove certain string values that are numbers in a list:

`["December 31, 2020", "10.00%", "$50", "1,452", "7", "testing", "(1)", "(1000)"]`

How can I get the list to only show: `["December 31,2020", "testing"]`? I did try a couple of the built in python functions, but could not figure out how to get the list I want.

Code:

```
number_list = ["December 31, 2020", "10.00%", "$50", "1,452", "7", "testing", "(1)", "(1000)"]
new_list = []
garbage_list = []
for i in number_list:
   if i.isdigit():
      garbage_list.append(i)
   else:
       new_list.append(i)
print(new_list)

```

Output: `["December 31, 2020", "10.00%", "$50", "1,452", "testing", "(1)", "(1000)"]`