Fix import in Python getting-started
Fix import in Python getting-started

resolves #633

Signed-off-by: Lodovico Giaretta <f5f3172e48fe5cab1d91da7dcb396de8974a473b@users.noreply.github.com>

anastasia-tarasova/indy-sdk,peacekeeper/indy-sdk,anastasia-tarasova/indy-sdk,srottem/indy-sdk,srottem/indy-sdk,anastasia-tarasova/indy-sdk,anastasia-tarasova/indy-sdk,anastasia-tarasova/indy-sdk,anastasia-tarasova/indy-sdk,anastasia-tarasova/indy-sdk,peacekeeper/indy-sdk,anastasia-tarasova/indy-sdk,Artemkaaas/indy-sdk,anastasia-tarasova/indy-sdk,srottem/indy-sdk,Artemkaaas/indy-sdk,srottem/indy-sdk,Artemkaaas/indy-sdk,srottem/indy-sdk,peacekeeper/indy-sdk,peacekeeper/indy-sdk,Artemkaaas/indy-sdk,Artemkaaas/indy-sdk,srottem/indy-sdk,srottem/indy-sdk,peacekeeper/indy-sdk,srottem/indy-sdk,anastasia-tarasova/indy-sdk,anastasia-tarasova/indy-sdk,Artemkaaas/indy-sdk,Artemkaaas/indy-sdk,peacekeeper/indy-sdk,Artemkaaas/indy-sdk,srottem/indy-sdk,Artemkaaas/indy-sdk,Artemkaaas/indy-sdk,peacekeeper/indy-sdk,peacekeeper/indy-sdk,peacekeeper/indy-sdk,Artemkaaas/indy-sdk,srottem/indy-sdk,peacekeeper/indy-sdk,peacekeeper/indy-sdk,peacekeeper/indy-sdk,peacekeeper/indy-sdk,srottem/indy-sdk,Artemkaaas/indy-sdk,srottem/indy-sdk,anastasia-tarasova/indy-sdk,anastasia-tarasova/indy-sdk,srottem/indy-sdk,Artemkaaas/indy-sdk