Python check if type is string
Here's an example: # convert bytes (python 3) or unicode (python 2) to str if str(type(s) " class 'bytes' # only possible in Python 3 s code ascii # or s str(s)2:-1 elif str(type(s) " type 'unicode'. Var input Enter the value: if type(var)._name_ 'str print "var is a string!" elif type(var)._name_ 'list print "var is a list!" The above program checks the list and string type.
So before using any variable in, python, you have to declare the variable in your code. 19, Aug 20 Count occurrences of a sub-string with one variable character 08, Jan 19 Python Set 6 (Command Line and Variable Arguments) 26, Mar 16 Different ways to access Instance Variable in Python 03, Apr 20 Python Using.
Table of Contents What is the dynamic data type in Python? You can also use it to check the type of variable using type method and perform an action based on its type. Inspecting the code, this is what you find: import sys PY3 rsion_info0 3 if PY3: string_types str, else: string_types basestring).
I know this is an old topic, but being the first one shown on google and given that, i don't find any of the answers satisfactory, I'll leave this here for future reference: six is a, python 2 and 3 compatibility. How to check the data type of each variable in Python? So the comparing data types in Python is essential before performing some operations.
If your code needs to be compatible with both, python 2 and, python 3, you can't directly use things like isinstance(s,bytes) or isinstance(s,unicode) without wrapping them in either try/except or a python version test, because bytes is undefined. You can use all other data types in the conditional operator. You can then do something like this: import six if isinstance(value, ring_types pass # It's a string!
Recommended Articles Page : Pad or fill a string by a variable in Python using f-string 14, Aug 20 Python Check if variable is tuple 14, Nov 19 How to check if a Python variable exists? Python Code to check and identify the class of the object: You can use the above two methods to identify the object of the particular class.
Method #1 : Using isinstance(x, str) This method can be used to test whether any variable is a particular datatype. An extremely ugly one is to compare the name of the type, instead of comparing the type itself.
For example: n 16 isinstance(n, int) #True isinstance(n, long) #False isinstance(n, str) #False Here you can also pass the Python tuple as the second argument. StrIn1 "20" strIn2 "35" print String output: strIn1 strIn2) val1 20 val2 35 print Numeric output: val1val2) Output: String output: 2035 Numeric output: 55 In the above program, When I perform operations on the strings, it concatenates two string. It returns the datatype of the variable.
By giving the second argument as str, we can check if the variable we pass is a string or not. How to check the data type of the variable? Later, I will share two programming methods in Python to check the type of variable. This article gives ways to test a variable against the data type.
If you have any query or point to discuss, comment below. Sometimes, you may want to manipulate the data based on its data type.