My GUI program which is written by PyQt5, has 4 tabs which I run the other tab after finishing the current tab. For example execute Tab1 and after saving the results i go to second tab and run that tab. My question is that after finishing the execution of the current tab, how can i delete all variables which i have created during the execution of this tab. I mean deleting variables from the RAM. Does using gc.collect at the end of that tab remove the variables? Any answer would be very helpful for me.

CodePudding user response：

You can try del statement

Deletion of a name removes the binding of that name from the local or global namespace, depending on whether the name occurs in a global statement in the same code block. If the name is unbound, a NameError exception will be raised.

a = 1
b = 2
print(a)
print(b)
del a, b
print(b)


# NameError: name 'b' is not defined

CodePudding user response：

I don't think there's a way to delete all of them built-in so I would add them to a var list when declaring them and delete all of them at once when ready.

    varlist = []
    
    myvar1 = 'string'
    varlist.append(myvar1)

    myvar2 = 123
    varlist.append(myvar2)

    for var in varlist:
        del var