NIST STS as Python subprocess

I want to call the NIST Statistical Test Suite from Python as a subprocess and interact with the program to test some random bit streams I have produced. I need to call the official NIST sts, not an alternative implementation. To call the program from the cli I use: $ ./assess 100000 Then I get to choose what I want to do.

This is a typical example of my run. My choices are predefined, so my question is how can I pass to the subprocess these arguments (noted with bold)?

       G E N E R A T O R    S E L E C T I O N 
       ______________________________________

[0] Input File                 [1] Linear Congruential
[2] Quadratic Congruential I   [3] Quadratic Congruential II
[4] Cubic Congruential         [5] XOR
[6] Modular Exponentiation     [7] Blum-Blum-Shub
[8] Micali-Schnorr             [9] G Using SHA-1

Enter Choice: 0

User Prescribed Input File: data/test.txt

            S T A T I S T I C A L   T E S T S
            _________________________________

[01] Frequency                       [02] Block Frequency
[03] Cumulative Sums                 [04] Runs
[05] Longest Run of Ones             [06] Rank
[07] Discrete Fourier Transform      [08] Nonperiodic Template Matchings
[09] Overlapping Template Matchings  [10] Universal Statistical
[11] Approximate Entropy             [12] Random Excursions
[13] Random Excursions Variant       [14] Serial
[15] Linear Complexity

     INSTRUCTIONS
        Enter 0 if you DO NOT want to apply all of the
        statistical tests to each sequence and 1 if you DO.

Enter Choice: 1

    P a r a m e t e r   A d j u s t m e n t s
    -----------------------------------------
[1] Block Frequency Test - block length(M):         128
[2] NonOverlapping Template Test - block length(m): 9
[3] Overlapping Template Test - block length(m):    9
[4] Approximate Entropy Test - block length(m):     10
[5] Serial Test - block length(m):                  16
[6] Linear Complexity Test - block length(M):       500

Select Test (0 to continue): 0

How many bitstreams? 100

   Input File Format:
[0] ASCII - A sequence of ASCII 0's and 1's
[1] Binary - Each byte in data file contains 8 bits of data

Select input mode: 0

 Statistical Testing In Progress.........

Thanks in advance.