It has a large community of developers, which means that there are a variety of tools and libraries available to help you get your work done. It has a large number of modules that we can import and use in our program. However, sometimes importing module does not import all the variable,...
In Python, a class represents a blueprint defining the structure and behavior of objects. It encapsulates attributes (variables) and methods (functions) that outline the characteristics and actions associated with the objects instantiated from the class. Classes provide a means to organize and structur...
numpy allow us to give one of new shape parameter as -1 (eg: (2,-1) or (-1,3) but not (-1, -1)). It simply means that it is an unknown dimension and we want numpy to figure it out. And numpy will figure this by looking at the'length of the array and remaining dimensions...
What does an 'r' represent before a string in python? [duplicate] r means the string will be treated as raw string. Fromhere: When an 'r' or 'R' prefix is present, a character following a backslash is included in the string without change, and all backslashes are left in the string...
__call__is a special function in Python that, when implemented inside a class, gives its instances (objects) the ability to behave like a function. It means after implementing__call__method inside the Python class, we can invoke its instances like a function. ...
endis an optional parameter inprint() functionand its default value is'\n'which meansprint() ends with a newline. We can specify any character/string as an ending character of theprint() function. Example # python print() function with end parameter example# ends with a spaceprint("Hello...
Strings are stored as individual characters in a contiguous memory location. It can be accessed from both directions: forward and backward. Characters are nothing but symbols. Strings are immutable Data Types in Python, which means that once a string is created, it cannot be changed. In this ...
Here, an object of the socket class is created, and two parameters are passed to it. The first parameter, i.e., AF_INET, refers to the ipV4 address family, meaning only ipV4 addresses will be accepted by the socket. The second parameter, SOCK_STREAM, means connection-oriented TCP protoco...
The eval() in Python is quite useful but it also has important security implications. eval function is considered insecure because it allows you or other users to dynamically execute arbitrary Python code. So how does it affect us? Suppose you are asking for user’s input in an application ...
In this tutorial, we'll demonstrate how to effectively use decorators in Python functions. Functions in Python are first class citizens. This means that they support operations such as being passed as an argument, returned from a function, modified, and assigned to a variable. This property is...