what is the canonical way to check the type of input?

Question

I want to check the type of input on the screen by using

python types module

I have used the type(2) is int for integer. ---->>>working I have used the type("Vivek") is str for string. ---->>>working but i am confused when I take input using raw_input()

import types

p = raw_input("Enter input ")

if I entered string like "vivek" on console then it is ok

the matter is when int and float entered

so what will be the canonical way to checked whether an input is of boolean,int,char,string,long,byte,double in python.

With `raw_input` you always get a bytes string of type `str` (with Python 2). — Laurent LAPORTE, Sep 14 '16 at 11:04
Did you check http://stackoverflow.com/questions/402504/how-to-determine-the-variable-type-in-python — MKB, Sep 14 '16 at 11:05
and everything you read with `input()` in python3 is of type `str` — Ma0, Sep 14 '16 at 11:07
By the way, there is no `char` type in Python, or `byte`, or `double`... — juanpa.arrivillaga, Sep 14 '16 at 11:17
@MKB I'm not agree. The OP ask for string conversion in Python. It's question is a little awkward. — Laurent LAPORTE, Sep 14 '16 at 11:32

score 2 · Accepted Answer · edited May 23 '17 at 10:29

2

It up to you to convert your input to whatever you need.

But, you can guess like this:

import sys

p = raw_input("Enter input")

if p.lower() in ("true", "yes", "t", "y"):
    p = True
elif p.lower() in ("false", "no", "f", "n"):
    p = False
else:
    try:
        p = int(p)
    except ValueError:
        try:
            p = float(p)
        except ValueError:
            p = p.decode(sys.getfilesystemencoding()

This support bool, int, float and unicode.

Notes:

Python has no char type: use a string of length 1,
This int function can parse int values but also long values and even very long values,
The float type in Python has a precision of a double (which doesn't exist in Python).

what is the canonical way to check the type of input?

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