CODEWITHSUNDEEP
pythongevent
mjs
mjs

Reputation: 33

How can I assign a name to a greenlet

I am looking to assign a custom name/identifier to a gevent greenlet. Gevent already assigns a unique name: 

def name(self):
    """
    The greenlet name. By default, a unique name is constructed using
    the :attr:`minimal_ident`. You can assign a string to this
    value to change it. It is shown in the `repr` of this object.

    .. versionadded:: 1.3a2
    """

However, I am not sure how to change this value to a user inputted name. Is it possible to do so?

I tried to do something like this and ended up with an attribute error:

       def begin(self):
          self.thread = gevent.spawn(self.print_message)
          self.thread.minimal_ident = "t1"
          print(self.thread.name) 

AttributeError: attribute 'minimal_ident' of 
'gevent._greenlet.Greenlet' objects is not writable

Upvotes: 3

Views: 646

Answers (2)

georgexsh
georgexsh

Reputation: 16624

gevent.Greenlet.name is not a common property, but a gevent.util.readproperty obj, which is a special non-data descriptor works like @property, and for a non-data descriptor:

... In contrast, non-data descriptors can be overridden by instances.

you could override it simply:

>>> gr = gevent.spawn(gevent.sleep, (1,))
>>> gr.name = "a_cool_name"
>>> print(gr)
<Greenlet "a_cool_name" at 0x1082a47b8: sleep((1,))>

read more on the gevent source and the descriptor doc.

Upvotes: 3

Nordle
Nordle

Reputation: 2981

Instantiate the class first and then overwrite the method as such;

my_obj = Class() #Instantiate the class
my_obj.name = 'this is the string'

This will replace the constructed name with your own string.

Upvotes: 1

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