To Play with Modules in Python

Question

1. To import multiple modules we can use
import math, random, sys

2. To import only some useful functions of a module, we can use the code as
from math import sqrt

3. We can also give some alias name to the particular function after import statement
from math import sqrt as square_root

4. We can also give alias names for different functions with in a module using commas.
from math import sqrt as square_root, cos as cosine, tan as tangent
print square_root(49)
>>>7.0
print cosine(0)
>>>1
print tan(45)
>>>1

5. We can print the list of all functions within a module using the line of code
import math

print dir(math)
>>>['__doc__', '__name__', '__package__', 'acos', 'acosh', 'asin', 'asinh', 'atan', 'atan2', 'atanh', 'ceil', 'copysign', 'cos', 'cosh', 'degrees', 'e', 'erf', 'erfc', 'exp', 'expm1', 'fabs', 'factorial', 'floor', 'fmod', 'frexp', 'fsum', 'gamma', 'hypot', 'isinf', 'isnan', 'ldexp', 'lgamma', 'log', 'log10', 'log1p', 'modf', 'pi', 'pow', 'radians', 'sin', 'sinh', 'sqrt', 'tan', 'tanh', 'trunc']

6. We can also get the full documentation of all functions using a line of code
import math
print help(math.log)

>>>Help on built-in function log in module math:

log(...)
log(x[, base])

Return the logarithm of x to the given base.
If the base not specified, returns the natural logarithm (base e) of x.

Answer 1

this is not a question!

Answer 2

This isnt a Question but helpful ty

Answer 3

It seems you are posting your own tutorials and guides in Q&A....

Answer 4

This is not a question but you can comment in the modules in python.