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dictionary

How to sum dict elements

August 19, 2022 by Magenaut

In Python,
I have list of dicts:

Categories Python, Q&A Tags dictionary, python, sum Leave a comment

How to convert a file into a dictionary?

August 19, 2022 by Magenaut

I have a file comprising two columns, i.e.,

Categories Python, Q&A Tags dictionary, file, python Leave a comment

How do you create nested dict in Python?

August 19, 2022 by Magenaut

I have 2 CSV files: ‘Data’ and ‘Mapping’:

Categories Python, Q&A Tags dictionary, mapping, nested, python, python-2.7 Leave a comment

Storing Python dictionaries

August 19, 2022 by Magenaut

I’m used to bringing data in and out of Python using CSV files, but there are obvious challenges to this. Are there simple ways to store a dictionary (or sets of dictionaries) in a JSON or pickle file?

Categories Python, Q&A Tags dictionary, json, pickle, python, save Leave a comment

How to overcome TypeError: unhashable type: ‘list’

August 18, 2022 by Magenaut

I’m trying to take a file that looks like this:

Categories Python, Q&A Tags dictionary, list, python, typeerror Leave a comment

How to get rid of double backslash in python windows file path string?

August 18, 2022 by Magenaut

PDF = ‘C:/Users/user/Desktop/File_%s.pdf’ %item

Categories Python, Q&A Tags dictionary, file, path, python Leave a comment

Is there a way to store a function in a list or dictionary so that when the index (or key) is called it fires off the stored function?

August 18, 2022 by Magenaut

For instance, I’ve tried things like mydict = {'funcList1': [foo(),bar(),goo()], 'funcList2': [foo(),goo(),bar()], which doesn’t work.

Categories Python, Q&A Tags dictionary, dispatch, python Leave a comment

How do I format a string using a dictionary in python-3.x?

August 18, 2022 by Magenaut

I am a big fan of using dictionaries to format strings. It helps me read the string format I am using as well as let me take advantage of existing dictionaries. For example:

Categories Python, Q&A Tags dictionary, python, python-3.x, string Leave a comment

How do I exchange keys with values in a dictionary?

August 18, 2022 by Magenaut

I receive a dictionary as input, and would like to to return a dictionary whose keys will be the input’s values and whose value will be the corresponding input keys. Values are unique. For example, say my input is: a = dict() a['one']=1 a['two']=2 I would like my output to be: {1: 'one', 2: 'two'} … Read more

Categories Python, Q&A Tags dictionary, mapping, python, reverse Leave a comment

Is a Python dictionary an example of a hash table?

August 18, 2022 by Magenaut

One of the basic data structures in Python is the dictionary, which allows one to record “keys” for looking up “values” of any type. Is this implemented internally as a hash table? If not, what is it?

Categories Python, Q&A Tags dictionary, hash, hashmap, hashtable, python Leave a comment
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  1. michealSmith07 on Is there a way to dynamically refresh the less command?August 21, 2022

    That is a very nice post. I like this post.

  2. anonymous on Fix libwacom9 dependency issue when upgrade DebianJune 27, 2022

    saved my day!! Thanks for the help…

  3. sreedhar on Fix libwacom9 dependency issue when upgrade DebianMay 10, 2022

    Thanks its working

  4. saintnick on Fix libwacom9 dependency issue when upgrade DebianMay 10, 2022

    remove libwacom2 worked for me as well

  5. ranafoul on Fix libwacom9 dependency issue when upgrade DebianApril 22, 2022

    apt remove libwacom2 helped on kali 2022.01. gr8

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