Python：导入库/模块后打印自定义消息

Question

I have a web-app on which user will be writing a Python snippet.

I want to add a custom message whenever user imports a library. For example, if user's code is something as below

import pandas
import os
from subprocess import Popen, PIPE

Then the output should have:

You have imported pandas
You have imported os
You have imported Popen
You have imported PIPE

The user's code can be dynamic, and can actually import any library.

Answer 1

The only way I can think of right now is to use try except. You can take user input (the library name) as string and then:

import importlib

lib_to_import = 'math'


try:
    importlib.import_module(lib_to_import)
    print("You have imported {}.".format(lib_to_import))
except:
    print("Something went wrong when importing {}.".format(lib_to_import))

You can wrap the above into a function and call it every time when the user imports a library.