What is use for isinstance() method in python?

Question

When I try to use numpy to deal with my dataset in the style of csv, I face a problem.

In my dataset of the csv file, some columns are string that can not convert to float easily. Some of them can ignore, but other columns I need to change the data to a enum style.

for example, one column just contain three kinds : S,Q,C. Each of them can declare one meaning, so I must convert them to a dict just like {1,2,3}

Now the question is, when I use numpy.loadtxt, I must do all things above in just one line and one function.

Answer 1

The isinstance() function returns True if the specified object is of the specified type, otherwise False.

If the type parameter is a tuple, this function will return True if the object is one of the types in the tuple.

Example:

x = isinstance("QueryHome", (str, float, int, str, list, dict, tuple))

print(x) // str