Need to significantly revise programming_environment, so stored current content in programming_environment_extras. Will delete this when the content has been redistributed.
Need to significantly revise programming_environment, so stored current content in programming_environment_extras. Will delete this when the content has been redistributed.

nntisapeh/intro_programming,nntisapeh/intro_programming,ehmatthes/intro_programming,nntisapeh/intro_programming,nntisapeh/intro_programming,chenleo/ipynotebook,BadWizard/intro_programming,ehmatthes/intro_programming,BadWizard/intro_programming,chenleo/ipynotebook,BadWizard/intro_programming,chenleo/ipynotebook,chenleo/ipynotebook,ehmatthes/intro_programming,ehmatthes/intro_programming,BadWizard/intro_programming