![]() You should not expect that Python will always be able to do implicit typecasting. The type of my_sum variable is float, because Python protects us from data loss, as the int type can not contain floating-point data. Python has been able to identify that both variables are of numeric type and allowed us to save a result of the sum operation to my_sum variable of type float. The implicit typecasting happens when, for example, you’re summing an int and a float variables: my_integer = 313377 ValueError: could not convert string to float: 'seven point zero' Implicit typecasting Please, pay attention that if your str data can not be cast to float type, you’ll get the following error: my_float = float('seven point zero') Here’s an example: is_ec2_instance_stopped = True For example, Javas numeric types are primitive, while classes are user-defined. Variable of the boolean type can have only one of two possible values: User-defined data types are non-primitive types. The boolean type is needed to store the results of logical operations in Python. For a simplified introduction to type hints, see PEP 483. For the original specification of the typing system, see PEP 484. ![]() This module provides runtime support for type hints. They can be used by third party tools such as type checkers, IDEs, linters, etc. Python supports various data types that allow us to store and process strings, various types of numbers, results of logical operations, and more complex types of data like lists (arrays), sets, dictionaries, tuples, dates, times, and many more. Python programming language has four primitive or fundamental data types, namely, integers, floats, booleans and strings. The Python runtime does not enforce function and variable type annotations. That means that variables EC2_instance_id and ec2_instance_id are not the same and will store different data: EC2_instance_id = 'i-0e9a442e6332682dc' ![]() Python is case sensitive programming language. Now, as soon as we learn how to use Python variables, let’s review their basic data types. NameError: name 'my_variable' is not defined Now, if you try to access my_variable the variable, you’ll get the following error message: Traceback (most recent call last): You can accomplish this by using del statement: my_variable = 'Some text data' Sometimes it might be required to delete variables during your program execution completely. This means that the variable type is a string. Here’s an example of type() function call for s3_bucket_name variable: print(type(s3_bucket_name)) To get a variable type, you can use a special built-in type() Python function. Python is smart enough to understand the variable data type based on provided value. S3_bucket_files = Getting variable type in Python Here are some examples of variables in Python: s3_bucket_name = 'hands-on-cloud-python-course-src-bucket' To define a variable, you need to specify the variable name and assign it a value using the = operator.
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