How to avoid exec(), globals(), locals(), eval()

[paul18fr]

@bowlofred
ok my mistake to not being precise enough; the current post is in the continuity of this one (I thought it was a better idea to open a new one to speak about the use of exec(), locals(), globals() and eval()).
(print is just a way highlight my need)

Currently:

• I'm dealing with a lot of data that are recorded in a first time in dictionaries
  
• the name of a dictionary depends on what I'm getting, so it's implicitly a variable
  
• the number of dictionaries varies
  
• the keys name is also a variable
  
• values are (numpy) arrays (containing millions of rows and up to dozens of columns - in other word the size of the array can be huge)
  
• in parallel to dictionnaries creation, a dictionnary names list is created and updated
  
• because of all these variables, I'm using a mix of exec(), locals(), gobals(), eval() to dynamically work with names (for dictionaries, keys, and so on) and I know it's not a correct way to do under Python (for all reasons ever evocked)
  

In a first stage, and based on the list of dictionary names, I do not know how to pass to a function a variable number of dictionaries except using exec() and so on.

Hope it is clearer now
(one issue after another one )