#!/usr/bin/env python
import numpy as np

class tank:
    def __init__(self):
        return 0

    def general_values(self):
        return 0

    def create_spherical(self):
        self.V = 4 * np.pi * a**3 / 3  # volume of spherical tank; a = nominal radius of the tank, in.
        self.t = a

if __name__ == '__main__':
    print('structural.py cannot be run as the main script.')

#!/usr/bin/env python
import numpy as np

class tank:
    def __init__(self):
        return 0

    def general_values(self):
        return 0

    def create_spherical(self):
        self.V = 4 * np.pi * a**3 / 3  # volume of spherical tank; a = nominal radius of the tank, in.
        self.t = a

if __name__ == '__main__':
    print('structural.py cannot be run as the main script.')

#!/usr/bin/env python # volume of spherical tank; a = nominal radius of the tank, in.