Jon Betts questions

Jon Betts answers

• Global variable imported from a module does not update - why?
• python regex fails to identify markdown links
• Shorten large stack traces when using libraries
• Good way to build a blocking, zero-length queue in Python
• Drawing polygon with n number of sides in Python 3.2
• Nginx add_header and cache control
• Obtain the difference between two files
• Delete elements from dicts in list if value of dict key is in otherlist