Hayden questions

Hayden answers

• How do I sort a perl hash by multiple keys?
• java.lang.NoClassDefFoundError: java.awt.Container
• TypeError : 'NoneType' object not callable Python with BeautifulSoup XML
• BeautifulSoup return unexpected extra spaces
• multiprocessing pool.map call functions in certain order
• What does the <<'m'=~m>> syntax mean in perl?