proto

class HelloWorld():
    def print_hello(self):
        print('hello')

rapid

import requests
import json
import tempfile
from importlib.machinery import SourceFileLoader

fp = tempfile.NamedTemporaryFile(suffix='.py')
response = requests.get('http://127.0.0.1:5002/python_script')
print(response.text)
# {
#     "hello": "class HelloWorld():\n    def print_hello(self):\n        print('hello')\n\nclass HelloWorld2():\n    def print_hello(self):\n        print('hello')"
# }
fp.write(json.loads(response.text).get('data').encode())
fp.seek(0)
print(fp.name)
ig = SourceFileLoader("ig", fp.name).load_module()
print(dir(ig))
ig.HelloWorld().print_hello()

server

from flask import Flask, jsonify

app = Flask(__name__)


@app.route('/python_script')
def python_script():
    return jsonify({'data': open('proto.py', 'r').read()})


if __name__ == '__main__':
    app.run(debug=True, port=5002)