Import search path

 >>> Import  Sys
  >>>  SYS. Path
[  ''  ,  '  C: \ python26 \ python26.zip  '  ,  '  C: \ python26 \ DLLs  '  ,  ' C: \ python26 \ Lib  '  ,  '  C  
  : \ Python26 \ Lib \ Plat  -  Win  '  ,  '  C: \ python26 \ Lib  -  TK  '  , '  C: \ python26  '  ,  '  C: \ P
Ython26 \ Lib \ Site  -  Packages  '  ]  
  >>>  Sys
  <  Module  '  Sys '  (Built  -  In  )  >  
  >>>  SYS. Path. append (  '  D: \ svntest  '  )
  >>>  SYS. Path
[  ''  , '  C: \ python26 \ python26.zip  '  ,  '  C: \ python26 \ DLLs  '  ,  '  C: \ python26 \ Lib  '  ,  '  C  
  : \ Python26 \ Lib \ Plat  - Win  '  ,  '  C: \ python26 \ Lib  -  TK  '  ,  '  C: \ python26  '  ,  '  C: \ P
Ython26 \ Lib \ Site  -  Packages '  ,  '  D: \ svntest  '  ] 

Notes:

1. ImportingSysModule makes all of its functions and attributes available
2. You can add a new directoryPython'S search path at runtime by appending the directory nameSYS. Path, And thenPythonWill look in that directory as well, whenever you try to import a module. The effect lasts as longPythonIs running.