Python variable made out of with only uppercases-CodePudding

I recently bought a book called "Black Hat Python". However, I found that some variables are only made out of uppercase and the book was using it like a global variable. Is there any feature in python that globalize variable by making a variable with only upper cases?

CodePudding user response：

As of now, there is no such method. Rather you could define a global variable using the global keyword.

Here is an example:

def myfunction():
    global s
    s  = ' Hello World'
    print(s)
    s = "I love python"
    print(s)
 
# Global Scope
s = "Python is great!"
f()
print(s)

You can refer to this link for reference - link

CodePudding user response：

There is no any difference for python how you set your variable. Uppercase may be used just for visual explanation.

You can read more about it via link:

-> Python variables