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+---- Thread: [Python] Dics and lambdas (/showthread.php?tid=5719362)
Dics and lambdas - vorticalbox - Sep 17, 2017
Does anyone know why this doesn't work
PHP Code
<?php
strat_map = {
'1': lambda: print('One'),
'2': lambda: print('Two')
}
strat_map['1']
strat_map['2']
PHP Code
<?php
strat_map = {
'1': lambda a: print('One'),
'2': lambda a: print('Two')
}
strat_map['1']('')
strat_map['2']('')
* - 7key - Sep 17, 2017
This is the equivalent of what's happening in the first example, but replace foo with strat_map['1'] or strat_map['2'] in your case:
Code
def foo():
print('One')
fooSee the problem here? foo, strat_map['1'], and strat_map['2'] all map to function names, but if you want to call them you'll need to use parentheses: foo(), strat_map['1'](), strat_map['2'](), even though they take no arguments.
Your second example does just that.
* - vorticalbox - Sep 17, 2017
(Sep 17, 2017 05:24 AM)7key Wrote: This is the equivalent of what's happening in the first example, but replace foo with strat_map['1'] or strat_map['2'] in your case:
Codedef foo():
print('One')
foo
See the problem here? foo, strat_map['1'], and strat_map['2'] all map to function names, but if you want to call them you'll need to use parentheses: foo(), strat_map['1'](), strat_map['2'](), even though they take no arguments.
Your second example does just that.
that makes sense thanks :)