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Questions - dictionary-comprehension

More elegant way to create a python dictionary from a map object and list

someList=['this','that','the_other','and_this'] timeFrame='hour' getDatafromFile(some_string,time_frame): do some processing return dataframeObject The end result is a dictionary with a keyed...
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horsehead97

python

list-comprehension

threadpoolexecutor

dictionary-comprehension

Votes: 0

Answers: 2

Latest Answer

You can use dict comprehension syntax: {key: getDatafromFile(key, timeFrame) for key in someList}
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Nechoj

How to add a column of a dictionary of dataframes?

I have a dictionary of 15 dataframes and I was searching around how to add a column to each dataframe based on an operation. In my particular case, I wanted to sum specific columns in each dataframe a...
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rweber

python

dictionary

iteration

dictionary-comprehension

Votes: 0

Answers: 1

Latest Answer

If df_dict is your dictionary of dataframes and columnlist the list of columns you want to sum over, then you could use .assign() and do: df_sum_dict = { key: df.assign(Sum=df[columnlist].sum(axis...
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Timus

optimizing nested dictionary comprehension

I have a dictionary comprehension that works, however I'm not sure if it is very readable/understandable (since I don't understand it well, but i'm a noob). Data structures: dict1 = {'this key 1':['t...
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Casey Cushing

python-3.x

dictionary-comprehension

Votes: 0

Answers: 0

Delete certain keys from a nested dictionary using dictionary comprehension

I have to work with a nested dictionary filled with numbers in python 'my_dict', and a list that specifies the subkeys 'keys 'that have to be deleted: keys=[1,9] my_dict={1:{1:a, 2:b}, 2:{1:c, 3:d, 9:...
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Doe. joe

python

dictionary

dictionary-comprehension

Votes: 0

Answers: 4

Latest Answer

For your example , i recreated the data to runnable, however deleting directly from the dict you' re iterating on will throw an error , you can do it by creating a copy of a dictionary where will your...
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Ran A

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