Python Function help

[namarino]

def classify(input_string):    split_string = None    numbers = []    strings = []        split_string = input_string.split("  ")        for x in split_string:        try:            numbers.append(int(x))        except:            strings.append(x)        return (numbers, strings)

Basically this function goes through a sentence and separates integers and strings. When the parameter is an empty string though (classify("")), it still adds the "" to the string list. Can someone show me how to fix this? I would really appreciate it. Thanks! Let me know if you need anything specified.

[Glenwing]

def classify(input_string):    split_string = None    numbers = []    strings = []        split_string = input_string.split("  ")        for x in split_string:        try:            numbers.append(int(x))        except:            strings.append(x)        return (numbers, strings)

Basically this function goes through a sentence and separates integers and strings. When the parameter is an empty string though (classify("")), it still adds the "" to the string list. Can someone show me how to fix this? I would really appreciate it. Thanks! Let me know if you need anything specified.

Can't you just add a special case, like:

if input_string == "":

return

or something like that?

[squirrl]

I'm guessing you just need to check if the string is empty and then throw it away. An empty string is still a string, and can get split just like any string.

 

"x y" gets split at the space into split_string[0] "x" and split_string[1] "y"

"xy" gets split, since there's no space it will just be split into 1 piece at index [0] "xy"

"" gets split, since there's no space it goes into index [0] like the last one.

[namarino]

Can't you just add a special case, like:

if input_string == "":

return

or something like that?

 

I'm guessing you just need to check if the string is empty and then throw it away. An empty string is still a string, and can get split just like any string.

 

"x y" gets split at the space into [0] "x" and [1] "y"

"xy" gets split, since there's no space it will just be split into 1 piece at index [0] "xy"

"" gets split, since there's no space it goes into index [0] like the last one.

 

Oh right, yeah a conditional would work yeah...woops. How about if the string has two spaces in between the words instead of one??  How could I handle that??

[squirrl]

Oh right, yeah a conditional would work yeah...woops. How about if the string has two spaces in between the words instead of one??  How could I handle that??

I don't do python, but i'd look for a function that removes whitespace from a string.

possibly this:

string.replace(" ", "")

 

Although rereading what you said, as long as the string split is one space, then it doesn't matter how many spaces there are between words if you throw away empty strings

 

look at this:

 

"hello my  name is squirrl"

that would get split into

"hello" "my" "" "name" "is" "squirrl"

the third string would get thrown away since it's empty and you're left with the sentence you wanted without any spaces.

Unless you want to handle it differently?