looping through elements and using them as names for objects in python

Asked Jan 08 '21 at 01:12

Active Jan 08 '21 at 01:12

Viewed 31 times

for N_RECORDS in ['50k','50m','100m','200m','python']:
  eval("res_"+N_RECORDS) = spark.read.load("/tmp/xgb-rts/xgb_results_"+N_RECORDS+"_pos.csv")
  eval("res_"+N_RECORDS+"_neg")=spark.read.load("/tmp/xgb-rts/xgb_results_"+N_RECORDS+"_neg.csv")

I just want to create objects with the names res_50k, res_50m, res_100m, res_50k_neg, etc without doing it manually.

However, I keep getting an error

SyntaxError: can't assign to function call
  File "<command-1997330779535506>", line 2
    eval("res_"+N_RECORDS) = spark.read.load("/tmp/xgb-rts/xgb_results_"+N_RECORDS+"_pos.csv"

How do I work around this?

asked Jan 08 '21 at 01:12

Kashif

3,063
6
29
45

2

Use a list or a dictionary to collect results. – g.d.d.c Jan 08 '21 at 01:15
2

Creating variable names dynamically is usually a bad idea. – Michael Butscher Jan 08 '21 at 01:17
use `exec` not `eval` – sahasrara62 Jan 08 '21 at 01:17
some example code would be helpful – Kashif Jan 08 '21 at 01:23

looping through elements and using them as names for objects in python

0 Answers0