Building a dictionary from a tuple of variable length

[bg_ie]

Hi,

I have the following tuple -

t = ("one","two")

And I can build a dictionary from it as follows -

d = dict(zip(t,(False,False)))

But what if my tuple was -

t = ("one","two","three")

then I'd have to use -

d = dict(zip(t,(False,False,False)))

Therefore, how do I build the tuple of Falses to reflect the length of
my t tuple?

Thanks for your help,

Barry.

 

[Marc 'BlackJack' Rintsch]

Therefore, how do I build the tuple of Falses to reflect the length of
my t tuple?

In [1]: dict.fromkeys(('one', 'two', 'three'), False)
Out[1]: {'three': False, 'two': False, 'one': False}

Ciao,
Marc 'BlackJack' Rintsch

 

[Peter Otten]

I have the following tuple -

t = ("one","two")

And I can build a dictionary from it as follows -

d = dict(zip(t,(False,False)))

But what if my tuple was -

t = ("one","two","three")

then I'd have to use -

d = dict(zip(t,(False,False,False)))

Therefore, how do I build the tuple of Falses to reflect the length of
my t tuple?

For dictionaries there is a special method:
{'three': False, 'two': False, 'one': False}

When you are just interested in the list of tuples, use repeat():
[('a', False), ('b', False), ('c', False)]

Peter

 

[Jussi Salmela]

(e-mail address removed) kirjoitti:

Hi,

I have the following tuple -

t = ("one","two")

And I can build a dictionary from it as follows -

d = dict(zip(t,(False,False)))

But what if my tuple was -

t = ("one","two","three")

then I'd have to use -

d = dict(zip(t,(False,False,False)))

Therefore, how do I build the tuple of Falses to reflect the length of
my t tuple?

Thanks for your help,

Barry.

Another variation:

d = dict((x, False) for x in t)

Cheers,
Jussi

 

[Pierre Quentel]

Hi,

Therefore, how do I build the tuple of Falses to reflect the length of my t tuple?

Yet another solution :

d = dict(zip(t,[False]*len(t)))

Pierre