Concatenate different data types python
When trying to concatenate a string and a number in Python: Show
You’ll receive one of the following errors:
Fortunately, there are several ways to concatenate different types. Cast to stringOne approach is to convert the non-string to a string:
InterpolationAnother approach is to use interpolation:
The String formatThe
f-stringIf you’re using Python 3.6 or greater, you can use f-string:
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... and for sequence types, it means "concatenate the sequences":
As a rule, Python doesn't implicitly convert objects from one type to another1 in order to make operations "make sense", because that would be confusing: for instance, you might think that Similarly, Python won't let you concatenate two different types of sequence:
Because of this, you need to do the conversion explicitly, whether what you want is concatenation or addition:
However, there is a better way. Depending on which version of Python you use, there are three different kinds of string formatting available2, which not only allow you to avoid
multiple
... but also allow you to control how values are displayed:
Whether you use % interpolation, Another alternative is to use the fact that if you give
... but that's usually not as flexible as using Python's built-in string formatting abilities. 1 Although it makes an exception for numeric types, where most people would agree on the 'right' thing to do:
2 Actually four, but template strings are rarely used, and are somewhat awkward. Other Resources:
How do you concatenate a string and a variable in Python?Use the + operator. str1="Hello". str2="World". print ("String 1:",str1). print ("String 2:",str2). str=str1+str2.. print("Concatenated two different strings:",str). How do you concatenate a string and integer in Python?If you want to concatenate a string and a number, such as an integer int or a floating point float , convert the number to a string with str() and then use the + operator or += operator.
Can you concatenate different data types?You have to perform an explicit conversion if they are not the same data type. The following example is trying to concatenate a INT and a String together, you can see SQL cannot handle the different data types. The new CONCAT() function does an implicit conversion to string for all items being concatenated together.
Can Python concatenate different data types?Python supports string concatenation using the + operator. In most other programming languages, if we concatenate a string with an integer (or any other primitive data types), the language takes care of converting them to a string and then concatenates it.
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