Dec 8, 2011 · I want to build a dictionary in Python. However, all the examples that I see are instantiating a dictionary from a list, etc . .. How do I create a new empty dictionary in Python?

May 2, 2013 · I want my Python code to open both files and for each Device_Name in the Data file, map its GDN, Device_Type, and Device_OS value from the Mapping file. I know how to …

I am trying to create a dictionary from a csv file. The first column of the csv file contains unique keys and the second column contains values. Each row of the csv file represents a unique …

Imagine that you have: keys = ('name', 'age', 'food') values = ('Monty', 42, 'spam') What is the simplest way to produce the following dictionary ? dict = {'name' : 'Monty', 'age' : 42, 'food' : …

1 This is a more complicated version of the problem but it is still essentially creating a dictionary with a for loop. I wanted to create a database of all my photos/videos on my computer - 1000s …

What is the most efficient way to organise the following pandas Dataframe: data = Position Letter 1 a 2 b 3 c 4 d 5 e into a dictionary like

Another efficient way of doing this with the update method is with keyword arguments, but since they have to be legitimate python words, you can't have spaces or special symbols or start the …

How to initialize a dict with keys from a list and empty value in Python? Asked 15 years, 8 months ago Modified 2 years, 9 months ago Viewed 529k times

I have a DataFrame with four columns. I want to convert this DataFrame to a python dictionary. I want the elements of first column be keys and the elements of other columns in the same row …

I want a dictionary that counts how many times each item appears in the list. So for the list above the result should be: {'apple': 2, 'red': 3, 'pear': 1} How can I do this simply in Python? If you …