Python import * from string

Question

so i need to import a module from a string.
here is the situation.
i have a program, that need import a module. but the module is encrypted. so i have to open the module as read binary and decrypt it. than???
after i decrypt it, how can i make its a real module?

the answer i know:
using exec or eval
but that is a bad practice, i think.

Answer 1

Ok, then after you've decrypted it, you can save it to a file, import it and delete it every time when it is not needed anymore.

Although probably a better way is to use meta import hooks, described here:
https://docs.python.org/3/reference/import.html

You can build your own class to import strings (from a read, decrypted file) as modules:
https://stackoverflow.com/questions/14191900/pythonimport-module-from-memory

Answer 2

What do you mean the module is 'encrypted'?

In any case - since you have a file which is the Python syntax module, you can save it to a file and then import it normally.

Just I don't think I get what the problem is here... :)

Answer 3

@kuba

after following those instruction, finally i must use exec. because we cant use "from module import * " in a class. i dont know why, the error is SyntaxError: import * is only allowed in module level. so i thinking about to use vars function

strr = "module"
vars() [strr] = __import__("my_module")

but it cant be done in a method.
i think its a bugs. or i missing something?

my try:

#in a class
def yay(self, strr):
name = strr.rstrip(".py")
vars() [name] = __import__(name)
self.mod = name #error name is not declared

Answer 4

@kuba

i encrypt it. its a big project and i want to hide it. so i encrypt it :v