Top-rated recipes tagged "call"

Function guards for Python 3 (Python)

2016-05-01T13:11:05-07:00

Python recipe 580658 by Dmitry Dvoinikov (call, decorator, dispatch, function, guard).

This module implements a function guard - facility to redirect the the call to one of several function implementations at run time based on the actual call arguments.

Wrap each of the identically named functions in a @guard decorator and provide a _when parameter with a default value set to guarding expression.

See samples at the top of the module.

Parse call function for Py2.6 and Py2.7 (Python)

2009-02-28T20:13:15-08:00

Python recipe 576671 by Jervis Whitley (ast, call, function, namedtuple, nodevisitor, parsing). Revision 14.

In some cases it may be desirable to parse the string expression "f1(*args)" and return some of the key features of the represented function-like call.

This recipe returns the key features in the form of a namedtuple.

e.g. (for the above)

>>> explain("f1(*args)")
[ Call(func='f1', starargs='args') ]

The recipe will return a list of such namedtuples for "f1(*args)\nf2(*args)" Note that while the passed string expression must evaluate to valid python syntax, names needn't be declared in current scope.

CallPipe: Call the methods of an object in a remote process (Python)

2008-09-17T17:33:36-07:00

Python recipe 576509 by david decotigny (call, multiprocessing, pipe, processing, remote). Revision 6.

I am process A and I own object Obj. Now I decide to fork(): process B is born.

How do I do to make process B call the methods of A's object Obj (and not the methods of its own copy of Obj...) ?

This is what this module does: you create the "CallPipe" for Obj prior to fork()ing, and then process B can call any method of A's object Obj through it.