"""
import specific names

keywords:
    from
    import
    (as)

"""


# math.pi
# A = pi * r * r



"""
__doc__
__loader__
__name__
__package__
__spec__
acos
acosh
asin
asinh
atan
atan2
atanh
ceil
copysign
cos
cosh
degrees
e
erf
erfc
exp
expm1
fabs
factorial
floor
fmod
frexp
fsum
gamma
gcd
hypot
inf
isclose
isfinite
isinf
isnan
ldexp
lgamma
log
log10
log1p
log2
modf
nan
pi
pow
radians
remainder
sin
sinh
sqrt
tan
tanh
tau
trunc
"""

import math

print(math.pi)
print(math.e)

print()

from py200913d_python2m4.day11_201122.mymod1 import *
from math import *

print(pi)
print(e)
print()
# which one is better?


from math import *
from py200913d_python2m4.day11_201122.mymod1 import *


print(pi)
print(e)









