Data Type Search from Input File

Question

I'm trying to find int values in an inputted list that contains floats and int values. The problem is the list read in looks like this:

List = [“14”,”8.00”,”2.00”,”3”]

How would I go about finding just the integer values in this list, not the floats? I'm presuming the type function won't work since it'll just say all the numbers are strings.

Answer 1

you can use ast module to identify the integer and float from strings.

In [16]: type(ast.literal_eval("3"))                                                                                                                                                                        
Out[16]: int

In [17]: type(ast.literal_eval("3.0"))                                                                                                                                                                      
Out[17]: float

Now using this concept with isinstance , you can filter out the integers:

In [7]: import ast 

In [10]: a = ['14','8.00','2.00','3']                                                                                                                                                                       

In [11]: a                                                                                                                                                                                                  
Out[11]: ['14', '8.00', '2.00', '3']

In [12]: res = []                                                                                                                                                                                           

In [13]: for num in a: 
    ...:     if isinstance(ast.literal_eval(num),int): 
    ...:         res.append(num) 
    ...:                                                                                                                                                                                                    

In [14]: res                                                                                                                                                                                                
Out[14]: ['14', '3']

Answer 2

Try below code:

l = ["14","8.00","2.00","3"]
l = [int(i) for i in l if i.isdigit()]
print(l)