So, I have a large 30k line program I’ve been writing for a year. It basically gathers non-normalized and non-standardized data from multiple sources and matches everything up after standardizing the sources. I’ve written most everything with ordered dictionaries. This allowed me to keep the colum…
Tag: dictionary
indexing nested dictionary elements
I am trying to access the dictionary elements in python, which looks like this: I want to access the value of key ‘xyz’.Is there any direct method to access it in python. Any help is greatly appreciated. Answer In steps, mydict[‘result’] returns [{‘abc’:1,’xyz’:…
Way to call method depending on variable?
I already have a working, but in my oppinion not beautiful solution for a part of a long script. My script uses several similar methods, that differ too much to combine. However I came to a point where I want to call one of those methods depending on a given variable. The names of the methods are build up lik…
How to validate structure (or schema) of dictionary in Python?
I have a dictionary with config info: I want to check if the dictionary follows the structure I need. I’m looking for something like this: Is there any solution done to this problem or any library that could make implementing check_structure more easy? Answer Without using libraries, you could also defi…
String by value; Dictionary by reference?
I’m coming from C, learning Python. In Python (3.5.2), it seems that assignment of one data type to another of the same type is sometimes done by value and sometimes by reference. For example, strings are assigned by value: This is the behavior I expect. However, it works differently with dictionaries: …
Iterate through a list inside a dictionary in python
I’m very new to Python and I need to create a function that divides by 2 the values in the lists inside the dictionary: desired output: I found this post python: iterating through a dictionary with list values which helped a little, but unfortunately is the “whatever” part of the example cod…
How can I do a dictionary format with f-string in Python 3 .6?
How can I do this format with a Python 3.6 F-String? Answer Well, a quote for the dictionary key is needed. f’My name {person[“name”]} and my age {person[“age”]}’
Converting a iterable of ordered dict’s to pandas dataframe
I am iterating over OrderedDict’s and want to store them as pandas dataframe. Is there a commend to do that? Currently, the code is: One row in res looks like this: OrderedDict([(‘field_id’, 1), (‘date’, datetime.date(2016, 1, 3)), (‘temp’, 30.08), (‘norm_temper…
Convert dictionary into list with length based on values
I have a dictionary I want to convert it to a list that holds the keys of the dictionary. Each key should be repeated as many times as its associated value. I’ve written this code that does the job: Output: But I would like it to be a list comprehension. How can this be done? Answer You can do it
How to dump a dictionary into an .xlsx file with proper column alignment?
I have a dictionary with 2000 items which looks like this: Given that I want to write it to an .xlsx file, I use this code (taken from here): This produces an .xlsx file with the following alignment: However, this is the alignment I am after: What should I change in the script to achieve this? Answer This is …