annoying dictionary problem, non-existing keys
i use dictionaries to hold some config data, such as:
conf={'key1':'value1','key2':'value2'} and so on...
when i try to process conf, i have to code every time like: if conf.has_key('key1'): if conf['key1']<>'': other commands....
this is very annoying. in php, i was able to code only like: if conf['key1']=='someth'
in python, this fails, because, if key1 does not exists, it raises an exception.
MY question: is there a way to directly get value of an array/tuple/dict item by key, as in php above, even if key may not exist, i should not check if key exist, i should only use it, if it does not exist, it may return only empty, just as in php....
i hope you understand my question...
Python-dev is for discussion of development of future Python. Use python-list / comp.lang.python / gmane.comp.python.general for usage questions.
I posted to so many lists because,
this issue is related to all lists, this is an idea for python, this is related to development of python...
why are you so much defensive ?
i think ideas all important for development of python, software.... i am sory anyway.... hope will be helpful.
2008/4/24, Terry Reedy tjreedy@udel.edu:
Python-dev is for discussion of development of future Python. Use python-list / comp.lang.python / gmane.comp.python.general for usage questions.
Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/bvidinli%40gmail.com
2008/4/24 bvidinli bvidinli@gmail.com:
I posted to so many lists because,
this issue is related to all lists, this is an idea for python, this is related to development of python...
why are you so much defensive ?
i think ideas all important for development of python, software.... i am sory anyway.... hope will be helpful.
Please consult the documentation first: http://docs.python.org/lib/typesmapping.html . You're looking for the get() method.
This attribute of PHP is hardly considered a feature, and is not something Python wishes to emulate.
Collin Winter
2008/4/24, Terry Reedy tjreedy@udel.edu:
Python-dev is for discussion of development of future Python. Use python-list / comp.lang.python / gmane.comp.python.general for usage questions.
Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/bvidinli%40gmail.com
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participants (4)
-
"Martin v. Löwis" -
bvidinli -
Collin Winter -
Terry Reedy