Variable access & modification in Python 2.x closures (enclosure)

Source: Internet
Author: User



Python can read nonlocal variables in 2.x, just not the change them. This was annoying, but can work around it. Just Declare a dictionary, and store your variables as elements therein

python2.x Natural support for Nolocal class variable access, as long as they do not change their "value" is good. So you can bypass it with Dict/tuple.

The demo is as follows:

>>>defmake_sequence (): ... data={'sequence': 0} ...defhandler (Result): ... data['sequence']+=1...             Print '[%d] Got:%s'% (data['sequence'], str (result) ...returnHandler

Variable access & modification in Python 2.x closures (enclosure)

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