Federer questions

• What does 'u' mean in a list?
• Copying file without previous meta data
• Counting Instances of Unique Value in Field
• Adding Extra Parameters to a Objects.filter (via Dict)?
• Choosing a Path for Python File Access
• Django - String to Date - Date to UNIX Timestamp
• Wildcard in Django (Objects.filter)
• Regex to separate Numeric from Alpha
• Line Segments in Matplotlib
• TreeItem ClickHandler in GWT

Federer answers