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Given the following text description, write Python code to implement the functionality described below step by step
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Description:
 markdown test, i can write normal text here and it will not run as code!
Step1:  strings yoiu can use the %s to format strings into your print statements
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Python Code:
# this is a comment and will not run in the code
'''this is just a mulit line comment'''
pwd
#addition
2+1
# substraction
2-1
1-2
2*2
3/2
3.0/2
float(3)/2
3/float(2)
from __future__ import division
3/2
1/2
2/3
root(2)
sqrt(2)
4^2
4^.5
4**.5
a=5
a=6
a+a
a
0.1+0.2-0.3
'hello'
'this entire thing can be a string'
"this is using double quotes"
print 'hello'
print("hello")
s='hello'
s
len(s)
print(s)
s[3]
s[10]
s[5]
s[2:4]
z*10
letter='z'
letter*10
letter.upper()
letter.center('z')
print 'this is a string'
Explanation: markdown test, i can write normal text here and it will not run as code!
End of explanation
s = 'STRING'
print 'place another string with a mod and s: %s' %(s)
from __future__ import print_function
print('hello')
print('one: {x}'.format(x='INSERT'))
my_list = [1,2,3,'o','29a jeoilapif a']
len(my_list)
my_list[1:]
my_list[1]+1
my_list[1] = 5
my_list
my_list + ['just a simple test'
]
my_list * 2
l = [1,2,3]
l.append('append me')
l
l.pop(2)
l
l.pop()
l
l[100]
new_list = ['a','b','x','f','c']
new_list
new_list.reverse()
new_list.reverse()
new_list
lst_1 = [1,2,3]
lst_2 = [4,5,6]
lst_3 = [7,8,9]
matrix = [lst_1, lst_2, lst_3]
matrix
matrix[2][1]
first_col = [row[0] for row in matrix]
first_col
my_dict = {'key1':'this is cool','key2':2, 'key3':'duh','key4':['a','b',3]}
my_dict['key4']
my_dict.pop('key3')
my_dict
my_dict['key4'][1].upper()
my_dict['key2'] -= 5
my_dict
d = {}
d['animal'] = 'dog'
d
d['answer']=421
d
d.pop('anwer')
d
d = {'key 1':{'nestkey':{'subnestkey':'value'}}}
d
d['key 1']['nestkey']['subnestkey']
d = {'key1':1,'key2':2,'key3':3}
d.keys()
d.values()
d.items()
t = (1,2,3)
len(t)
t = ('one',2,'cool dude')
t
t[1
]
t[-1]
t.index('one
        ')
t.index('one')
t.count('one')
t[0] = 'change'
t.append('nope')
pwd
f = open('text_file.txt')
f.read()
f.seek(0)
f.read()
f.read()
f.readlines()
f.seek()
f.seek(0)
f.readlines()
%%writefile new.txt
first line
second line
for line in open('new.txt'):
    print('line')
Explanation: strings yoiu can use the %s to format strings into your print statements
End of explanation
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