Fix possible Sphinxify.py TypeError on import
Fix possible Sphinxify.py TypeError on import

Sphinxify assumes that every non-NT OS has an environment variable "USER". This assumption is not necessarily true and the code will throw a TypeError on import if getenv returns None. An important example of an environment without a USER-variable are cron jobs.
spyder-ide/docrepr,spyder-ide/docrepr,spyder-ide/docrepr