parameters: (realm, username, may_save)
return_statement: return svn_autn_info
docstring: Callback used by the SVN library to obtain login credentials
docstring_summary: Callback used by the SVN library to obtain login credentials
docstring_tokens: Callback used by the SVN library to obtain login credentials
function: def svn_login_callback (realm, username, may_save):
      """ Callback used by the SVN library to obtain login credentials"""
      global svn_auth_info
      if svn_auth_info is None:
          print "Please enter your Subversion login credentials.  They will be saved for the duration of this script."
          username = raw_input ("Username: ")
          password = raw_input ("Password: ")
  
          svn_auth_info = (True, username, password, False)
  
      return svn_autn_info
function_tokens: def svn_login_callback ( realm , username , may_save ) : global svn_auth_info if svn_auth_info is None : print "Please enter your Subversion login credentials.  They will be saved for the duration of this script." username = raw_input ( "Username: " ) password = raw_input ( "Password: " ) svn_auth_info = ( True , username , password , False ) return svn_autn_info