How-to articles, tricks, and solutions about PYTHON

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

The error message "Cannot find module cv2" usually indicates that the OpenCV library is not installed on your system, or that Python is unable to find the library.

The "TypeError: string indices must be integers" error is raised when you try to access an element of a DataFrame or Series using a string index instead of an integer index.

The "SettingWithCopyWarning" in pandas is raised when you try to modify a copy of a DataFrame or Series rather than the original.

In Python, you can use the dict.keys() method to return a view object that contains the keys of a dictionary.

In Python, you can check if a variable is an integer using the isinstance() function.

There are a couple of ways to change the font size on a matplotlib plot.

In Python, you can remove specific characters from a string by using the replace() method or using string slicing and concatenation.

To install pip with Python 3, you can use the following command:

In Windows, you can add to the PYTHONPATH environment variable to make sure that Python can find your modules and packages.

In Python, you can check if an item is in a list using the in keyword.

There are a few ways to reverse a list in Python, depending on what you want to do with the reversed list.

You can drop rows of a Pandas DataFrame that have a NaN value in a certain column using the dropna() function.

In Python, you can terminate a script by using the exit() function from the sys module.

There are a few ways to copy a dictionary in Python, depending on the level of copying that you need.

You can use the os module to get the full path of the current file's directory.

There are a few ways to trim whitespace from a string in Python.

In Python, you can use the shutil module to move a file.

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).

In Python, you can create a multiline comment using triple quotes (either single or double) at the beginning and end of the comment.

There are a few ways to remove duplicates from a list in Python.

In Python 3, you can convert a string to bytes using the bytes function.

In pandas, you can change the data type of a column using the astype() function.

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

In Python, the assert statement is used to check if a certain condition is true, and if it is not true, raise an exception.