Catch the exception and throw it again

Same behavior in Python and C#…
Wrong code:

try: 
   # some code
except Exception, e:
   # log the exception or whatever
   raise e

Right code:

try: 
   # some code
except Exception, e:
   # log the exception or whatever
   raise # JUST RAISE!!!

Wrong code:

try
{
   // whatever
}
catch (Exception e)
{
     // log the exception or whatever
     throw e
}

Right:

try
{
   // whatever
}
catch (Exception e)
{
     // log the exception or whatever
     throw // JUST THROW!!!
}

Reason: Exception stacktrace is lost if you write “raise e” or “throw e” instead of just “raise” or “throw”.