In this article, you will learn how to solve IndexError: list index out of range. Let’s look at a code example that produces the same error. How to Solve IndexError: list index out of range In order to solve it, you can use calculate the maximal index that can be accessed by the list. You […]
In this article, you will learn how to solve NameError: name is not defined. Let’s look at a code example that produces the same error. How to Solve NameError: name is not defined In order to solve it, you need to make sure that the variable has been defined first before using it.
In this article, you will learn how to solve SyntaxError: ‘return’ outside function. Let’s look at a code example that produces the same error. How to Solve SyntaxError: ‘return’ outside function In order to solve it, you need to make sure that the return statement is properly indented to represent a block of code.
In this article, you will learn how to solve ValueError: could not convert string to float. Let’s look at code examples that produce the same error. How to Solve ValueError: could not convert string to float In order to solve it, you can use the try…except block.
If you are getting TypeError: only length-1 arrays can be converted to Python scalars error, this article will help you fix the issue. Consider the following example which throws you the same error Output of the above the Code. To fix TypeError: only length-1 arrays can be converted to Python scalars issue you need to convert […]
In this article, you will learn how to get index of list element in Python. Let’s say you have a list of cardinal directions. directions = [‘North’, ‘South’, ‘East’, ‘West’] Get Index of List Element in Python In order to get the index of a list element, you can use the index() method. directions = […]
In this article, you will learn how to do hybrid inheritance in Python. Hybrid inheritance is a combination of multilevel inheritance and multiple inheritance. # This class is the base class class Father: def func1(self): print(“This function is in Father”) # This class inherits from Father class FirstChild(Father): def func2(self): print(“This function is in FirstChild”) […]
In this article, you will learn how to refer to base class in Python. Let’s say you have 2 classes, a base class named Father and a derived class named Son. class Father(object): def __init__(self, fatherGender): print(fatherGender, ‘is a male.’) class Son(Father): def __init__(self): print(‘Son is 20 years old.’) Refer to Base Class in Python […]
In this article, you will learn how to use SimpleHTTPServer in Python. SimpleHTTPServer is a built-in Python module that provides standard GET and HEAD requests. Use SimpleHTTPServer in Python In this example, you need to open up a command prompt (CMD) or Terminal and navigate to any directory. Then, type the following command in your […]
In this article, you will learn how to draw a rectangle on any image in Python. You need to make sure that you have installed OpenCV before attempting the example. In this example, you will be using the official Python logo as an image. Download the image and save it locally. Draw A Rectangle On […]
In this article, you will learn how to remove an element from a dictionary in Python. Let’s say you have a dictionary of users. Remove Element From Dictionary in Python In order to remove an element from a dictionary, you can use the pop() method. Note: The pop() method functions by removing an element from […]
In this article, you will learn how to join keys from a dictionary in Python. Let’s say you have a dictionary of users. Join Keys From Dictionary in Python In order to join keys from a dictionary, you can use the join() method. Note: The join() method functions by creating a string from a supplied […]
In this article, you will learn how to remove a key from a dictionary in Python. Let’s say you have a dictionary of users. Remove Key From Dictionary in PythonIn order to remove a key from a dictionary, you can use the del keyword. Note: The del keyword functions by deleting Python’s objects.
In this article, you will learn how to join tuples in Python. Let’s say you have 2 tuples. Join Tuples in Python In order to join tuples, you can use the zip() method and tuple() method. Note: The zip() method functions by creating a series of tuples from each element in both supplied iterables. The […]
In this article, you will learn how to create a dictionary from a sequence in Python. Let’s say you have a sequence of cardinal directions. Create Dictionary From A Sequence in Python In order to create a dictionary with keys and values, you can use the dict.fromkeys() method. Note: The dict.fromkeys() method functions by creating […]
