[Tutor] sharing a small script someone may find of use

[Nathan Smith]

I wanted to share this small script I wrote today with the list as I 
thought 1, someone might find it useful, and 2, feedback! :)


Use case: This script can be used to identify which modules are holding 
things up at the import stage and give you a rough estimate as to how 
long your imports are taking for a program during start up.

Limitations: Doesn't like from . import x, although this can be resolved 
easily with a minor edit.


Script:

import time
import importlib

slist=[]

file=input("What file should I read?")

modules=[]

f=open(file, "r")
data=f.readlines()
f.close()

for x in data: # get the list of modules and remove any end of line 
characters
     if(x.startswith ("import") or x.startswith("from")):
         word=x.split(" ")
         if(word[1] not in modules):
             modules.append(word[1].strip("\n"))

print("Found "+str(len(modules))+" modules.")

for x in modules:
     start=time.time()
     r=importlib.import_module(x)
     if(time.time()==start): # probably cached
         importlib.reload(r)
     slist.append([x, time.time()-start])
slist.sort(key=lambda x: x[1])

total=0
for x in slist:
     print(x[0], ": ", x[1])
     total=total+x[1]
print("Total: "+str(total))


I know I'm very paren happy, it's a habit from coding in a different 
language that requires it :) But any other feedback welcome!

I hope someone finds this of use.


-- 

Best Wishes,

Nathan Smith, BSC


My Website: https://nathantech.net