What is the best way to add entries from 1 dictionary to another?

[Pedroski55]

Thanks for the replies!

This is what I did yesterday. It worked, but is perhaps not so elegant.

groupA = {}
groupB = {}
groupC = {}

# this works
count = 1
for key in rev_sorted_dataDict.keys():    
    if count < 38:
        groupA[key] = rev_sorted_dataDict[key]
    elif count > 37 and count < 75:
        groupB[key] = rev_sorted_dataDict[key]
    elif count > 74:
        groupC[key] = rev_sorted_dataDict[key]
    count += 1

I just tried with .update, but I get an error.

Starting from rev_sorted_dataDict, a key looks like this:

2030120109 (just a student number)

and an rev_sorted_dataDict item (key: value pair) looks like this:

(2030070218, [2030070218, '王健康', '会计（海本2）', 58]) from which the value is the list

but apparently .update doesn't like this. How should I implement this with update?

From the idle shell:

for item in rev_sorted_dataDict.items():    
    if count < 38:
        groupA.update(item)
    elif count > 37 and count < 75:
        groupB.update(item)
    elif count > 74:
        groupC.update(item)
    count += 1

Traceback (most recent call last):
File "<pyshell#144>", line 3, in <module>
groupA.update(item)
TypeError: cannot convert dictionary update sequence element #0 to a sequence