I have this snippet:

s = "A 1 B 2"
a, a1, b, b1 = s.split()
a1 = int(a1)
b1 = int(b1)

I was wondering if there is anyway of unpacking and converting to int or anything else at the same time. I can also write the snippet as follows:

s = "A 1 B 2"
a, a1, b, b1 = (int(x) if i in (1, 3) else i, x for x in enumerate(s.split()))

But I wanted to know if there is a shorter version. Something like

a, int(a1), b, int(b1) = s.split()

which would make something like this also possible:

s = "A 1 B 2.3"
a, int(a1), b, float(b1) = s.split()

CodePudding user response：

Assuming this is your data and datatypes:

# data and datatypes
t = 'a 1 2.4 b'
dtypes = [str, int, float, str]

a, a1, b, b1 = [dtypes[i](n) for i, n in enumerate(t.split())]

CodePudding user response：

You could create a "universal" converter:

def converter(s):
    """Attempts to convert to int, float or returns a string"""
    try:
        return int(s)
    except ValueError:
        try:
            return float(s)
        except ValueError:
            return s


s = "A 1 B 3.141"

a,b,c,d = map(converter, s.split())  # apply function to all splitted things

# print values and its types
print(a, b, c, d, *map(type, (a,b,c,d)))

Output:

A 1 B 3.141 <class 'str'> <class 'int'> <class 'str'> <class 'float'>

However:

This will perform at most 3 conversion attempts per list member, you need to have exactly 4 things in your string and all in all its not very reusable. If you plug in 'A B C D' it will try 4 int conversion and 4 float conversions to get to 4 strings.

Can you do it? Yes. Should you? I have my doubts.

CodePudding user response：

Using s.split() converts a Text into a LIST.
So, use s.split(" ") splits the TEXT on whitespaces.
Then you will get:

s = "A 1 B 2.3"
print(s.split(" "))
x = s.split(" ")
for ele in x:
  if ele.isalpha():
    print(ele)
  elif ele.isdigit():
    print(int(ele))
  else:
    print(float(ele))

The output looks like this:

['A', '1', 'B', '2.3']  
A  
1   
B  
2.3

Thank You

CodePudding user response：

Simplest & Simplified Solution

It is easy to do it , just check the example and you will understand

mylist = [1, 2, 3, 4, 5] # creating list

result = int("".join(str(i) for i in mylist)) # making the (list --> int)

print(result) # print the result

Output :-

12345