Many instances have been there where I want to use some Standard Python library functions but they are not available in IronPython that ships with Spotfire, but it runs perfectly well in standalone IronPython interpreter. Few Examples can be url, json, urllib2
Ya, I went through this, but it works only for one ".py" file not the whole module, I had raised one SR for this and since it is a serious shortcoming Support team has created one Development request for this.
You might have a look at Knowledge Article ID 40329 at TIBCO Support Central (TSC) https://support.tibco.com/