How-to articles, tricks, and solutions about PYTHON

In Python, an object is considered iterable if it has an __iter__() method defined or if it has a __getitem__() method with defined indices (i.e., it can be indexed, like a list or a string).

This error occurs when there is a mismatch in the indentation level of a block of code in Python.

To install a specific version of a package with pip, you can use the pip install command followed by the package name and the desired version number.

No, in python the built-in len() function is the preferred way to get the length of an array, list or any other iterable object.

Yes, it is possible to break a long line of code into multiple lines in Python.

Yes, in Python there is an operator for not equal (!=) .

In Python, you can use the built-in function vars() to print the properties and values of an object.

Yes, you can use the all_timezones attribute of the pytz library to get a list of all the timezones that it supports.

Yes, you can use the remove() method to delete a list element by its value.

Yes, there are several ways to run Python on Android:

Yes, there are a few ways to kill a thread in Python.

To iterate over a dictionary using a for loop, you can use the .items() method to get a list of the dictionary's keys and values, and then iterate over that list.

The error message "JSONDecodeError: Expecting value: line 1 column 1 (char 0)" typically occurs when you are trying to parse a string as JSON, but the string is not in a valid JSON format.

To limit a float to two decimal points, you can use the round() function.

In Python, you can use the built-in function dir() to list the attributes of an object.

List comprehension and map() are both used to create new lists in Python, but they are used in slightly different ways.

List comprehension and the combination of lambda functions and the filter() function in Python are both used to filter a list and return a new list with only the elements that satisfy a certain condition.

In Python, when you create a list of lists and modify one of the sublists, the change is reflected in all other sublists as well because they are all pointing to the same object in memory.

In Python, you can raise an exception using the raise statement.

Here is a code snippet that shows how to make the tick labels font size smaller in Matplotlib:

In most modern programming languages, the maximum value for an int data type is implementation-specific, but is typically in the range of 2^31 - 1 to 2^63 - 1, and the minimum value is usually -2^31 or -2^63.

In Python, @classmethod is a decorator that is used to define a method as a class method.

The os.makedirs() function in Python can be used to create a directory with the -p option, which will create the entire directory path, including any missing parent directories.

There are several ways to apply a function to every element of a numpy array, and the most efficient method will depend on the size and shape of the array, as well as the complexity of the function.

Here is a code snippet for multiprocessing in Python: