The answer :
Version management! Asked this question, you should be very excited to show, or even tell them how you are using Git (or your other favorite tool) to track correspondence and his own grandmother. I tend to use Git as a version control system (VCS), but there are other options, such as subversion (SVN).
Why ask this question :
Because there is no code version control, like no coffee cup. Sometimes we need to write a one-time, you can readily throw away the script, not for version control does not matter in this case. But if you are faced with a lot of code, use version control system is advantageous. Version control can help you keep track of who did what on the code base; discover what the newly introduced bug; manage different versions of your software and releases; sharing source code among team members; deployed and other automated processing. It allows you to roll back to previous versions of a problem, especially on this point alone the bar. There are other good features. How a stick Zile!
This article first appeared in Python black hole net , blog sync with the new park