Is it possible to import a module from command line or from python before running a script

Question

I have written a module which re-defines the print function. Is it possible to preimport it in order to redefine print() (with from [module] import print) to demonstrate or test it with a program, without having to modify this program ?

Answer 1

Eureka ! ;-)

One can import a module (here, redefine the print function) and then chain a new program (./PROGRAM) in the current environment by using the command :

from MODULE import print
exec(open('./PROGRAM').read())

So (in linux) one can do it from command line (or script it) with :

python3 -c "from MODULE import print; exec(open('./PROGRAM').read())"

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