pythonic way to create 3d dict?

I want to create a dict which can be accessed as: d[id_1][id_2][id_3] = amount As of now I have a huge ugly funct...

How do I type a floating point infinity literal in python?

How do I type a floating point infinity literal in python? I have heard inf = float('inf') is non portable. T...

Understanding torch.nn.Parameter?

I am new to pytorch and I have difficulty in understanding how torch.nn.Parameter() works. I have gone through the ...

Converting a list to a set changes element order?

Recently I noticed that when I am converting a list to set the order of elements is changed and is sorted by charact...

Calculating a directory's size using Python??

Before I re-invent this particular wheel, has anybody got a nice routine for calculating the size of a directory usi...

How to import python file located in same subdirectory in a pycharm project?

I have an input error in pycharm when debugging and running. My project structure is rooted properly, etc./HW3/. so...

pandas get minimum value of two columns as part of an equation?

How can I reference the minimum value of two dataframes as part of a pandas dataframe equation? I tried using the py...

How to embed image or picture in jupyter notebook, either from a local machine or from a web resource??

I would like to include image in a jupyter notebook. If I did the following, it works : from IPython.display impor...

Numpy ‘smart’ symmetric matrix?

Is there a smart and space-efficient symmetric matrix in numpy which automatically (and transparently) fills the pos...

Subtracting Dates With Python?

I'm working on a simple program to tell an individual how long they have been alive. I know how to get the current ...

How to copy and convert parquet files to csv?

I have access to a hdfs file system and can see parquet files with hadoop fs -ls /user/foo How can I copy those p...

How to get a function name as a string??

In Python, how do I get a function name as a string, without calling the function? def my_function(): pass pri...

Converting integer to digit list?

What is the quickest and cleanest way to convert an integer into a list? For example, change 132 into [1,3,2] and ...

Python: how to print range a-z??

1. Print a-n: a b c d e f g h i j k l m n 2. Every second in a-n: a c e g i k m 3. Append a-n to index of urls{hel...

Gunicorn, no module named 'myproject?

I'm installing a previously built website on a new server. I'm not the original developer. I've used Gunicorn + ngi...