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Recent questions tagged Dictionary
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Q: Get key by value in dictionary
I made a function which will look up ages in a Dictionary and show the matching name: dictionary = {'george' ... it search backward. Select the correct answer from above options...
asked
Feb 4, 2022
in
Education
by
JackTerrance
python
dictionary
0
votes
Q: How to return dictionary keys as a list in Python?
In Python 2.7, I could get dictionary keys, values, or items as a list: >>> newdict = {1:0, 2:0, 3:0} ... to return a list in Python 3? Select the correct answer from above options...
asked
Feb 4, 2022
in
Education
by
JackTerrance
python
list
dictionary
0
votes
Q: Python reverse / invert a mapping
Given a dictionary like so: my_map = { 'a': 1, 'b':2 } How can one invert this map to get: inv_map = { 1: 'a', 2: 'b' } Select the correct answer from above options...
asked
Feb 4, 2022
in
Education
by
JackTerrance
python
dictionary
0
votes
Q: How can I sort a dictionary by key?
What would be a nice way to go from {2:3, 1:89, 4:5, 3:0} to {1:89, 2:3, 3:0, 4:5}? ... use the "sorted" operator that returns tuples. Select the correct answer from above options...
asked
Feb 2, 2022
in
Education
by
JackTerrance
python
sorting
dictionary
0
votes
Q: Should I use 'has_key()' or 'in' on Python dicts?
I wonder what is better to do: d = {'a': 1, 'b': 2} 'a' in d True or: d = {'a': 1, 'b': 2} d.has_key('a') True Select the correct answer from above options...
asked
Jan 28, 2022
in
Education
by
JackTerrance
python
dictionary
0
votes
Q: Partial match between two python lists, one list exactly present in the other with few additional characters in Python
I want to create a new list from the existing two lists that will have all the matches from list 2 which has an exact ... *", i) in a] Select the correct answer from above options...
asked
Jan 25, 2022
in
Education
by
JackTerrance
python
list
dictionary
list-comprehension
0
votes
Q: How can I initialise a static Map?
How would you initialise a static Map in Java? Method one: static initialiser Method two: instance initialiser (anonymous ... } }; } Select the correct answer from above options...
asked
Jan 25, 2022
in
Education
by
JackTerrance
java
dictionary
collections
initialization
idiomatic
0
votes
Q: Delete an element from a dictionary
How can I delete an element from a dictionary? In order to return a copy, how can I delete an element/ ... modifying the original)? Select the correct answer from above options...
asked
Jan 24, 2022
in
Education
by
JackTerrance
python
pop
del
dictionary
0
votes
Q: Iterating over dictionaries using 'for' loops
I am a bit puzzled by the following code: d = {'x': 1, 'y': 2, 'z': 3} for key in d: print key ... Python? Or is it simply a variable? Select the correct answer from above options...
asked
Jan 24, 2022
in
Education
by
JackTerrance
python
dictionary
python-keyword
0
votes
Q: Create a dictionary with list comprehension in Python
Can the Python list comprehension syntax be used to create dictionaries? For an example: By iterating over pairs of ... #doesn't work Select the correct answer from above options...
asked
Jan 22, 2022
in
Education
by
JackTerrance
python
dictionary
list-comprehension
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