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You cannot convert a list to a floating-point number. If you try to pass a list as an argument to the built-in float() method, you will raise the TypeError: float() argument must be a string or a number, not ‘list’. If you want to convert the elements of a...

In Python 3, a map object is an iterator and is not subscriptable. If you try to access items inside a map object using the subscript operator [], you will raise the TypeError: 'map' object is not subscriptable. This error typically occurs when using Python 2 syntax...

You cannot convert a list to an int. If you try to pass a list as an argument to the built-in int() method, you will raise the TypeError: int() argument must be a string, a bytes-like object or a number, not 'list'. If you want to convert the elements of a list to...

You can concatenate multiple Series or DataFrames using the pandas.concat() method. If you pass the multiple DataFrames to the concat method without using square brackets, you will raise the TypeError: first argument must be an iterable of pandas objects, you passed...

If you try to reference a local variable before assigning a value to it within the body of a function, you will encounter the UnboundLocalError: local variable referenced before assignment. The preferable way to solve this error is to pass parameters to your function,...

If you try to parse invalid JSON or decode an empty string as JSON, you will encounter the JSONDecodeError: Expecting value: line 1 column 1 (char 0). This error can occur if you read an empty file using json.load, read an empty JSON or receive an empty response from...

The min() function is built into Python and returns the item with the smallest value in an iterable or the item with the smallest value from two or more objects of the same type. When you pass an iterable to the min() function, such as a list, it must have at least...

In Python, bool is the type for the Boolean object, which is an object that represents one of two values: True or False. You cannot retrieve items from a Boolean value using the subscript operator [] like you can with a list or a tuple. If you try to use the subscript...

In Python, NoneType is the type for the None object, which is an object that indicates no value. Functions that do not return anything return None, for example, append() and sort(). You cannot retrieve items from a None value using the subscript operator [] like you...