Iterate over X dictionary items in Python
-3
How can I iterate over only X number of dictionary items? I can do it using the following bulky way, but I am sure Python allows a more elegant way.
d = {'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5}
x = 0
for key in d:
if x == 3:
break
print key
x += 1
python python-2.7
asked Nov 15 '18 at 19:38
sprogissdsprogissd
4101618
|
show 1 more comment
-3
How can I iterate over only X number of dictionary items? I can do it using the following bulky way, but I am sure Python allows a more elegant way.
d = {'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5}
x = 0
for key in d:
if x == 3:
break
print key
x += 1
python python-2.7
asked Nov 15 '18 at 19:38
sprogissdsprogissd
4101618
1
what's the purpose of this?
– Rafael Barros
Nov 15 '18 at 19:39
2
for key in d.keys()[:X]: ...? If you are concerned about memory, you can also usefrom itertools import islicethenfor key in islice(d, X):
– juanpa.arrivillaga
Nov 15 '18 at 19:40
The ultimate purpose is to shuffle my dictionary every time and use only X items from it.
– sprogissd
Nov 15 '18 at 19:41
@sprogissd Google how to random sample something. That functionality is available in a library.
– dfundako
Nov 15 '18 at 19:42
2
@sprogissd You can't shuffle a dictionary and have no direct control over the order of keys in Python 2.7.
– Peter Wood
Nov 15 '18 at 22:57
|
show 1 more comment
-3
-3
-3
How can I iterate over only X number of dictionary items? I can do it using the following bulky way, but I am sure Python allows a more elegant way.
d = {'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5}
x = 0
for key in d:
if x == 3:
break
print key
x += 1
python python-2.7
asked Nov 15 '18 at 19:38
sprogissdsprogissd
4101618
How can I iterate over only X number of dictionary items? I can do it using the following bulky way, but I am sure Python allows a more elegant way.
d = {'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5}
x = 0
for key in d:
if x == 3:
break
print key
x += 1
python python-2.7
python python-2.7
asked Nov 15 '18 at 19:38
sprogissdsprogissd
4101618
asked Nov 15 '18 at 19:38
sprogissdsprogissd
4101618
asked Nov 15 '18 at 19:38
sprogissdsprogissd
4101618
asked Nov 15 '18 at 19:38
sprogissdsprogissd
4101618
asked Nov 15 '18 at 19:38
sprogissdsprogissd
4101618
4101618
1
what's the purpose of this?
– Rafael Barros
Nov 15 '18 at 19:39
2
for key in d.keys()[:X]: ...? If you are concerned about memory, you can also usefrom itertools import islicethenfor key in islice(d, X):
– juanpa.arrivillaga
Nov 15 '18 at 19:40
The ultimate purpose is to shuffle my dictionary every time and use only X items from it.
– sprogissd
Nov 15 '18 at 19:41
@sprogissd Google how to random sample something. That functionality is available in a library.
– dfundako
Nov 15 '18 at 19:42
2
@sprogissd You can't shuffle a dictionary and have no direct control over the order of keys in Python 2.7.
– Peter Wood
Nov 15 '18 at 22:57
|
show 1 more comment
1
what's the purpose of this?
– Rafael Barros
Nov 15 '18 at 19:39
2
for key in d.keys()[:X]: ...? If you are concerned about memory, you can also usefrom itertools import islicethenfor key in islice(d, X):
– juanpa.arrivillaga
Nov 15 '18 at 19:40
The ultimate purpose is to shuffle my dictionary every time and use only X items from it.
– sprogissd
Nov 15 '18 at 19:41
@sprogissd Google how to random sample something. That functionality is available in a library.
– dfundako
Nov 15 '18 at 19:42
2
@sprogissd You can't shuffle a dictionary and have no direct control over the order of keys in Python 2.7.
– Peter Wood
Nov 15 '18 at 22:57
1
1
what's the purpose of this?
– Rafael Barros
Nov 15 '18 at 19:39
what's the purpose of this?
– Rafael Barros
Nov 15 '18 at 19:39
2
2
for key in d.keys()[:X]: ...? If you are concerned about memory, you can also use from itertools import islice then for key in islice(d, X):– juanpa.arrivillaga
Nov 15 '18 at 19:40
for key in d.keys()[:X]: ...? If you are concerned about memory, you can also use from itertools import islice then for key in islice(d, X):– juanpa.arrivillaga
Nov 15 '18 at 19:40
The ultimate purpose is to shuffle my dictionary every time and use only X items from it.
– sprogissd
Nov 15 '18 at 19:41
The ultimate purpose is to shuffle my dictionary every time and use only X items from it.
– sprogissd
Nov 15 '18 at 19:41
@sprogissd Google how to random sample something. That functionality is available in a library.
– dfundako
Nov 15 '18 at 19:42
@sprogissd Google how to random sample something. That functionality is available in a library.
– dfundako
Nov 15 '18 at 19:42
2
2
@sprogissd You can't shuffle a dictionary and have no direct control over the order of keys in Python 2.7.
– Peter Wood
Nov 15 '18 at 22:57
@sprogissd You can't shuffle a dictionary and have no direct control over the order of keys in Python 2.7.
– Peter Wood
Nov 15 '18 at 22:57
|
show 1 more comment
1 Answer
1
active
oldest
votes
1
If you want a random sample of X values from a dictionary you can use random.sample on the dictionary's keys:
from random import sample
d = {'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5}
X = 3
for key in sample(d, X):
print key, d[key]
And get output for example:
e 5
c 3
b 2
answered Nov 16 '18 at 12:08
Peter WoodPeter Wood
16.6k33672
add a comment |
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1 Answer
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votes
1 Answer
1
active
oldest
votes
active
oldest
votes
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oldest
votes
1
If you want a random sample of X values from a dictionary you can use random.sample on the dictionary's keys:
from random import sample
d = {'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5}
X = 3
for key in sample(d, X):
print key, d[key]
And get output for example:
e 5
c 3
b 2
answered Nov 16 '18 at 12:08
Peter WoodPeter Wood
16.6k33672
add a comment |
1
If you want a random sample of X values from a dictionary you can use random.sample on the dictionary's keys:
from random import sample
d = {'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5}
X = 3
for key in sample(d, X):
print key, d[key]
And get output for example:
e 5
c 3
b 2
answered Nov 16 '18 at 12:08
Peter WoodPeter Wood
16.6k33672
add a comment |
1
1
1
If you want a random sample of X values from a dictionary you can use random.sample on the dictionary's keys:
from random import sample
d = {'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5}
X = 3
for key in sample(d, X):
print key, d[key]
And get output for example:
e 5
c 3
b 2
answered Nov 16 '18 at 12:08
Peter WoodPeter Wood
16.6k33672
If you want a random sample of X values from a dictionary you can use random.sample on the dictionary's keys:
from random import sample
d = {'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5}
X = 3
for key in sample(d, X):
print key, d[key]
And get output for example:
e 5
c 3
b 2
answered Nov 16 '18 at 12:08
Peter WoodPeter Wood
16.6k33672
answered Nov 16 '18 at 12:08
Peter WoodPeter Wood
16.6k33672
answered Nov 16 '18 at 12:08
Peter WoodPeter Wood
16.6k33672
answered Nov 16 '18 at 12:08
Peter WoodPeter Wood
16.6k33672
16.6k33672
add a comment |
add a comment |
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1
what's the purpose of this?
– Rafael Barros
Nov 15 '18 at 19:39
2
for key in d.keys()[:X]: ...? If you are concerned about memory, you can also usefrom itertools import islicethenfor key in islice(d, X):– juanpa.arrivillaga
Nov 15 '18 at 19:40
The ultimate purpose is to shuffle my dictionary every time and use only X items from it.
– sprogissd
Nov 15 '18 at 19:41
@sprogissd Google how to random sample something. That functionality is available in a library.
– dfundako
Nov 15 '18 at 19:42
2
@sprogissd You can't shuffle a dictionary and have no direct control over the order of keys in Python 2.7.
– Peter Wood
Nov 15 '18 at 22:57