In [1]:
def square(n):
    result = n*n
    return result
In [4]:
print(square(7.36))

54.1696
In [9]:
with open("data.txt","r") as f:
    contents = f.read()
print(len(contents))
print(contents)
lines = contents.split('\n')
print(lines)
f.close()

45
This is line 1
This is line 2
This is line 3

['This is line 1', 'This is line 2', 'This is line 3', '']
In [7]:
with open("data.txt","r") as f:
    line1 = f.readline()
    line2 = f.readline()
print(len(contents))
#print(line1,end='')
print(line2)
f.close()

45
This is line 1
This is line 2
In [10]:
s = "20,30,40"
values = s.split(',')
print(values)

['20', '30', '40']
In [11]:
xs = []
xs.append(10)
xs.append(20)
xs.append(30)
print(xs)

[10, 20, 30]
In [12]:
# Tuple structure
ts = (10,20,30)
print(ts[0])

10
In [20]:
count = [(10,'a'),(5,'b'),(12,'c'),(6,'d')]
print(len(count))
print(count[0])
print(count[0][1])
count.sort(reverse=True)
print(count)

4
(10, 'a')
a
[(12, 'c'), (10, 'a'), (6, 'd'), (5, 'b')]
In [18]:
names = ["John","Alan","Zack"]
names.sort()
print(names)
names.sort(reverse=True)
print(names)

['Alan', 'John', 'Zack']
['Zack', 'John', 'Alan']
In [23]:
def candidates(ballots):
    result = []
    for ballot in ballots:
        if ballot not in result:
            result.append(ballot)
    return result
In [25]:
candidates(["raj","raj","raj","alex"])
Out[25]:
['raj', 'alex']
In [26]:
candidates([10,20,10,30,10,20,90,10])
Out[26]:
[10, 20, 30, 90]
In [ ]:
xs = [10,20,30]

sum = 0
for x in xs:
    sum = sum + x
return sum
In [ ]:
In [21]:
xs = [10,20,30]
10 in xs
Out[21]:
True
In [22]:
10 not in xs
Out[22]:
False
In [ ]: