Python callback inside class

Question

I'm registering pysvn.Client.callback_get_login callback, but I want my callback to be defined under my class, as method, rather then global function.

So, in my class I want to have something like:

self.client = pysvn.Client()
self.client.callback_get_login = self.get_login

instead:

self.client = pysvn.Client()
self.client.callback_get_login = get_login

But in 1st snippet I'm getting error:

pysvn._pysvn_2_7.ClientError: unhandled exception in callback_get_login

Is there a way to assign callback that is inside a class?

Cédric Julien · Accepted Answer · 2011-12-12 09:40:06Z

6

I encountered the same problem and solve it by creating a closure for my login func :

class DummyClient:
   def __init__(self):
      def callback_get_login(realm, username, may_save):
         name = raw_input("Enter your svn login : ")
         password = getpass.getpass("Enter your svn password :")
         return True, name, password, False
      self.client.callback_get_login = callback_get_login

answered Dec 12, 2011 at 9:40

Cédric Julien

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1 Comment

umpirsky Over a year ago

That works. Thanks! Since I store username and password as DummyClient class attributes, I thought I can't access them from closure with self.username and self.password, but I can. Which is good in my case.

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