CODEWITHSUNDEEP
python
geom
geom

Reputation: 195

how to read multiple input data listed on the same line of a file in python

I have a file input.dat with contents: 

1.00000000   1.00000000   0.00000000   0.10000000        12        12     50000           2

I want to read these values and assign them to variables a1 to a8 respectively.

I try: 

with open("input_params.dat","r") as inpfl:
    a1,a2,a3,a4,a5,a6,a7,a8 = inpfl.read()

and get the error: 

ValueError: too many values to unpack (expected 8)

How can I modify read() to do what I want?

I also need a1,..., a8 to be floats and integers respectively and not string variables. How do I accomplish this?

Upvotes: 0

Views: 828

Answers (1)

Umesh Jadhav
Umesh Jadhav

Reputation: 327

you can just use below code:

f = open('1.txt' , 'r')
lines = f.read().split(" ")

so you have list of values and you can take it in variable if you want like below: a = lines[0], b = lines[1] and so on.

You can use a1,a2,a3 = f.read().split(" ") if you want it in variables. Provided you have exact number of variables as values in file.

Hope this helps.

Upvotes: 3

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