How to generalize a for loop for all alfanumerical characters

I want to preface this by saying that I’m fully aware that you can simplify this whole endeavor by avoiding the loop in the first place, but this is a longer project, so let’s please just assume the original loop has to stay.

I created a loop that turns a string into a list at the empty space between words.

string= "This my string"
my_list = []
word = ""

for char in string:
    if char != " ":
        word += char
        if char is string[-1]:
            my_list.append(word)
    else:
        my_list.append(word)
        word = ""

The output therefore is:

['This', 'is', 'my', 'string.']

Now I would like to add a placeholder to the if char != " ", so I can later input any alphanumeric character to split the string at. So if I input i into this placeholder variable, the split would look like this:

['Th', 's my str', 'ng.']

I’ve attempted doing so with %s, but can’t get it to work.

So how can I change/add to this loop to have a placeholder included?

>Solution :

Is that what you are looking for?

string= "This my string"
my_list = []
word = ""
character = " " # change for the char you want to split on

for char in string:
    if char != character:
        word += char
        if char is string[-1]:
            my_list.append(word)
    else:
        my_list.append(word)
        word = ""

It may be simpler to just use string.split(" ") or string.split(character) in your case.