python modules

Question 1

math

Answer 1

math.pi
math.e
math.ceil
math.floor
math.pow
math.sqrt
math.factorial

Question 2

os

Answer 2

os.getcwd- current working directory

cwd- current working directory

os.environ- dictionary of environments

examples: identify current user or path variable- identify the path

os.listdir- all current files and directories

os.mkdir- make temp directory in current working directory

os.rename- rename directory

os.rmdir- remove directory

os.path.isdir(cwd)- pass in a name, it will tell you whether it is a directory or not. it returns true value if it a directory

os.path.isfile(cwd)- indicates the file exists

from os module you can import path

path.exists- checks for existence of directory or a file

Question 3

Random module

Answer 3

random.random() gives u a random number 0.6123567…

again if you do random.random() it again gives u another random number

random.randint - generates random integers(0,10)— it can be any integer
** you have to specify the integer range

random.choice(my_list) - will generate random element from the list

Question 4

datetime module

Answer 4

datetime.date.today()—-today’s date

datetime.datetime.now – will give date, time upto nano second