Use variables in a textfile as input

Question

As the topic says..

I want to use the file

indata.txt:

f=lambda x,y:-2*x*y
xa=0
xb=2
A=2 
n=18

Into my big program:

from math import *

'''Function which calculates the d.e. using runge-kuttas formula'''
def runge(f,xa,xb,A,n):
    .....



indata=open("indata.txt","r")
runge(f,xa,xb,A,n)
indata.close()

So my question is: How to I use the variables in the text file indata.txt as input to the bigger program?

Looks like python, why not just call it `indata.py` and import it? — tzaman, Mar 16 '16 at 16:49
It's python, sorry for not mentionting that. The project require it to be a textfile — Aerdennis, Mar 16 '16 at 16:54
You can still import it via filename, see the dupe I linked. — tzaman, Mar 16 '16 at 16:57

score 0 · Answer 1 · edited May 23 '17 at 12:31

0

As I know, you could use one of two options:
1. Rename your file to inpdata.py as mentioned in comments and in your main file use

from inpdata import *

Use built in python execfile() function. For Python3 execfile() alternative look here.

edited May 23 '17 at 12:31

Community

1
1

answered Mar 16 '16 at 16:57

kvorobiev

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Thank you so much! – Aerdennis Mar 16 '16 at 17:02
1

[Alternative for Python 3](http://stackoverflow.com/questions/436198/what-is-an-alternative-to-execfile-in-python-3-0) – M.T Mar 16 '16 at 17:02
@M.T Thank you for helpful addition! – kvorobiev Mar 16 '16 at 17:04

Use variables in a textfile as input

1 Answers1