"""Physical and mathematical constants for use within PlasmaPy"""

from numpy import pi

from astropy.constants.si import (h, hbar, k_B, c, G, g0, m_p, m_n, m_e,
                                  u, sigma_sb, e, eps0, N_A, R, Ryd, a0,
                                  muB, mu0, sigma_T, au, pc, kpc, L_sun,
                                  M_sun, R_sun, M_earth, R_earth)

from astropy.constants import atm

"""Physical and mathematical constants."""

from numpy import pi

from astropy.constants.si import (
    e,
    mu0,
    eps0,
    k_B,
    c,
    G,
    h,
    hbar,
    m_p,
    m_n,
    m_e,
    u,
    sigma_sb,
    N_A,
    R,
    Ryd,
    a0,
    muB,
    sigma_T,
    au,
    pc,
    kpc,
    g0,
    L_sun,
    M_sun,
    R_sun,
    M_earth,
    R_earth,
)

from astropy.constants import atm

Clean up constants/__init__.py