Code:
sample_dict={1:'r099',2:'g444',3:'t555',4:'f444',5:'h666'}
Code:
desired_order_list=[5,2,4,3,1]
Code:
{5:'h666',2:'g444',4:'f444',3:'t555',1:'r099'}
4 results in 0.0042 seconds.
-
Reorder dictionary in pyrhon according to a list of values!!!
Let us consider a dictionary:
I want to re-order this dictionary in an order specified by a list containing the order of the dictionary keys that I desire. Let us say the desired order list is:
So, I want my dictionary to appear like this:
How do... -
Linking certain filenames in a directory and a dictonary?
Hi. I'm trying to get my feet wet with programming and keep hitting some brick walls.
I basically want to look in a folder for certain filenames. If the files are there, I would like the term linked to the filename to be in a listbox.
I thought a dictionary would work:
...Code:dataset = { "File1.txt":"Picotiter Plate", "File2.txt":"KeyPass Wells", -
Python:Query on Conditional Loops and the setdefault method
>>>listoflist s = [['a', 'first'], ['b', 'second'], ['a', 'next'], ['c', 'third'], ['b', 'last']]
>>> dd = {}
>>>for item in listoflists:
... dd.setdefault(i tem[0], []).append(item)
- The part which mentions 'item[0]' would be to have the first letter of each item in the list we created right ?
- what does the ' [ ] ' signify in this case ? Does it mean to have a null value... -
A problem that I am facing on Python Dictionaries
I input the following:
>>> collection={} #Initiate an empty dictionary
>>>collection={ 'a':'first', 'a':'second','d ':'third','b':' fourth','e':'fi fth','b':'sixth '}
>>> collection
{'a':'second',' b':'sixth','e': 'fifth','d':'th ird'}
Now my question is:
Why does the output not include all the values (2 values for 'a' AND 2 values for 'b) BUT only shows the output of ONLY the...
