## numpy.median() Function

The NumPy library has a numpy.median() function is used to compute the median of an array in sorted order on a specified axis and returns the median of the array…

## How to Check the NumPy Version

There are multiple ways to check the NumPy version; however, the easiest and PEP8 standard practice is to import numpy and use the numpy.__version__ attribute to get the exact version…

## numpy.ndarray.flatten() function

The numpy.ndarray.flatten() function in the NumPy array library is used to flatten an array of elements in different orders. The flattening of a NumPy n-dimensional array in python is a procedure to return a copy of…

## numpy.mean() Function

The numpy.mean() is a function in the NumPy library that is used to calculate the mean of an array of elements along with an axis. In NumPy array library or…

## numpy.average() Function

The numpy.average() function computes the weighted average of elements that are specified NumPy array along the specified axis. The average in linear algebra is the proportion of the sum of…

## numpy.repeat() Function

The numpy.repeat() function takes the repetitions (int) as an input argument, repeats the elements of an array, and returns the repeated array as output. The repetitions can happen row and…

## numpy.transpose() Function

The numpy.transpose() function takes the array as an input, reverses its dimension, and returns the transposed array. In simple terms, the NumPy transpose swaps from rows to columns and columns…

## TabError: inconsistent use of tabs and spaces in indentation

The TabError: inconsistent use of tabs and spaces in indentation occurs if you indent the code using a combination of whitespaces and tabs in the same code block. What is inconsistent use…

## Check if a list is empty in Python

There are multiple ways to check if a list is empty in Python, and the most efficient way is by using the Pep-8 style, called “Truth Value Testing“. How to…

## numpy.shape() Function

The numpy.shape() function will return the shape of the given array in tuple format. The shape of the array is the elements in each dimension. Dimension is the count of…

## Python type()

Python type() is a built-in function that returns the type of the object or returns a new type object when all the three arguments are passed to the type() method.…

## Python Dictionary get()

Python Dictionary get() is a built-in function that returns the value for a specified key if present in the dictionary. If the key is not present, it returns None by default. …

## [Solved] RuntimeWarning: invalid value encountered in double_scalars

The RuntimeWarning: invalid value encountered in double_scalars occurs when you perform a complex mathematical operation using NumPy that involves extremely small or very large numbers and also if we pass an invalid…

## AttributeError: module ‘matplotlib’ has no attribute ‘plot’

The AttributeError: module ‘matplotlib’ has no attribute ‘plot’ mainly occurs if you have not imported the matplotlib properly in your code, or if you have not correctly installed the matplotlib…

## TypeError: ‘str’ object does not support item assignment

In Python, strings are immutable, which means we cannot change certain characters or the text of a string using the assignment operator. If you try to change the string value,…

## [Solved] ValueError: I/O operation on closed file

The i/o operations in Python are performed when the file is in an open state. So if we are trying to read or write into a file that is already…

## [Solved] TypeError: __init__() missing 2 required positional arguments

If we are instantiating the class that accepts 2 required positional parameters and if we do not pass those 2 required arguments Python interpreter will throw TypeError: __init__() missing 2 required…

## [Solved] TypeError: missing 2 required positional arguments

If we have a function that accepts 2 arguments, and while calling the method, if we do not pass those 2 required arguments Python interpreter will throw TypeError: missing 2 required…

## [Solved] AttributeError: module ‘time’ has no attribute ‘clock’

The time.clock() method has been removed in Python 3.8 onwards. Hence if you are using the clock() method in Python 3.8 or above, you will get AttributeError: module ‘time’ has no…

## [Solved] AttributeError: ‘tuple’ object has no attribute ‘get’

The AttributeError: ‘tuple’ object has no attribute ‘get’ mainly occurs when you try to call the get() method on the tuple value. The attribute get() method is present in the dictionary and must be called on…

## [Solved] AttributeError: ‘NoneType’ object has no attribute ‘get’

The AttributeError: ‘NoneType’ object has no attribute ‘get’ mainly occurs when you try to call the get() method on the None value. The attribute get() method is present in the dictionary and must be called on…

## [Solved] AttributeError: ‘float’ object has no attribute ‘get’

The AttributeError: ‘float’ object has no attribute ‘get’ mainly occurs when you try to call the get() method on the float data type. The attribute get() method is present in the dictionary and must be called…

## [Solved] AttributeError: ‘list’ object has no attribute ‘get’

The AttributeError: ‘list’ object has no attribute ‘get’ mainly occurs when you try to call the get() method on the list data type. The attribute get() method is present in the dictionary and must be called…

## [Solved] AttributeError: ‘str’ object has no attribute ‘get’

The AttributeError: ‘str’ object has no attribute ‘get’ mainly occurs when you try to call the get() method on the string data type. The attribute get() method is present in the dictionary and must be called…

## [Solved] AttributeError: ‘int’ object has no attribute ‘get’

The AttributeError: ‘int’ object has no attribute ‘get’ mainly occurs when you try to call the get() method on the integer type. The attribute get() method is present in the dictionary and must be called on…

## [Solved] AttributeError: module ‘datetime’ has no attribute ‘utcnow’

The AttributeError: module ‘datetime’ has no attribute ‘utcnow’ occurs if you have imported the datetime module and directly if we are using the datetime.utcnow() method on the datetime module.  The…

## [Solved] TypeError: cannot unpack non-iterable NoneType object

The TypeError: cannot unpack non-iterable NoneType object occurs when we try to unpack the values from the method that does not return any value or if we try to assign the None…

## [Solved] AttributeError: ‘module’ object has no attribute ‘strptime’

The AttributeError: ‘module’ object has no attribute ‘strptime’ occurs if you have imported the datetime module and directly if we are using the datetime.strptime() method on the datetime module.  The…

## How to get column names in Pandas Dataframe

Pandas DataFrame is Two-dimensional, size-mutable, potentially heterogeneous tabular data. Pandas DataFrame consists of rows and columns to store the data. Each column will have its own header name that can be…

## Convert DateTime to Unix timestamp in Python

This tutorial will look at how to convert DateTime to Unix timestamp in Python and String Date to timestamp with examples. What is Unix Timestamp? Unix was initially developed between…

## Python List pop()

Python List pop() is a built-in function that removes the item at the specified index from the list and returns the removed item. If the index is not passed, the last…

If you use Selenium 4.0.0 or above and try to find the elements on the page using the find_element_by_*() method, you will get an error saying DeprecationWarning: find_element_by_* commands are deprecated. Please use…

## Solving environment: failed with initial frozen solve. retrying with flexible solve

The Solving environment: failed with initial frozen solve. retrying with flexible solve occurs if you try to download any package that already exists and it breaks the anaconda environment. In this tutorial,…

## How to enable CORS on Django REST Framework?

If we are building an API layer using the Django REST framework and accessing these APIs in the front-end application we need to enable the CORS on Django Rest Framework…

## SyntaxError: (unicode error) ‘unicodeescape’ codec can’t decode bytes in position 2-3: truncated \UXXXXXXXX escape

The SyntaxError: (unicode error) ‘unicodeescape’ codec can’t decode bytes in position 2-3: truncated \UXXXXXXXX escape occurs if you are trying to access a file path with a regular string. In…

## [Solved] SyntaxError: Positional argument follows keyword argument

If you provide the keyword argument first followed by a positional argument, the Python interpreter will raise SyntaxError: positional argument follows keyword argument. In this tutorial, we will learn what SyntaxError: positional…

## [Solved] AttributeError: ‘numpy.ndarray’ object has no attribute ‘append’

If you use the regular Python list append() method to add an element to the end of NumPy array, you will encounter AttributeError: ‘numpy.ndarray’ object has no attribute ‘append’. In this…

## [Solved] ValueError: cannot convert float NaN to integer

The ValueError: cannot convert float NaN to integer occurs when we attempt to convert the pandas DataFrame column from float to an integer where the column contains NaN value. In…

## [Solved] RuntimeWarning: invalid value encountered in true_divide

Suppose you attempt to divide the NumPy arrays elements using the divide() method with invalid values such as 0/0, NaN Infinity, zero, etc. you will encounter a RuntimeWarning: invalid value encountered…

## [Solved] fatal error: ineffective mark-compacts near heap limit allocation failed – javascript heap out of memory

The fatal error: ineffective mark-compacts near heap limit allocation failed – javascript heap out of memory occurs if there is any memory leak or the application consumes a lot of…

## Convert Letters to Numbers in Python

Using the ord() method, we can convert letters to numbers in Python. The ord() method returns an integer representing the Unicode character. In this tutorial, we will look at converting…

## [Solved] AttributeError: ‘str’ object has no attribute ‘decode’

In Python 3, all the strings are in Unicode format by default. If you try to decode the Unicode string in Python 3, you will encounter an AttributeError: ‘str’ object…

## Python List clear()

Python List clear() is a built-in function that removes all the items and makes a list empty. In this tutorial, we will learn about the Python list clear() method with the help of…

## Python List count()

Python List count() is a built-in function that returns the number of times the specified element occurs in the list. In this tutorial, we will learn about the Python list count() method with…

## [Solved] Defaulting to user installation because normal site-packages is not writeable

If you have multiple versions of Python and try to install the packages using the pip3 install <package> command Python will throw an error defaulting to user installation because normal site-packages…

## [Solved] Importerror: libgl.so.1: cannot open shared object file: no such file or directory

If you are using cv2 or opencv-python and then building the application through docker you will get an importerror: libgl.so.1: cannot open shared object file: no such file or directory. In…

## Python List remove()

Python List remove() is a built-in function that removes the first occurrence element from the list. In this tutorial, we will learn about the Python list remove() method with the help of examples.…

## Python List insert()

Python List insert() is a built-in function that inserts the given element at a specified index.  In this tutorial, we will learn about the Python list insert() method with the help of examples.…

## Python List extend()

The extend() method in Python adds the iterable elements (list, tuple, string etc.) to the end of the list. The length of the list is increased by the number of elements present…

## Python List append()

The append() method in Python adds an element to the end of the list. After appending the new element, the size of the list increases by one. In this tutorial,…