Python is an interpreted high-level programming language for general-purpose programming. Created by Guido van Rossum and first released in 1991,Python has a design philosophy that emphasizes code readability, notably using significant whitespace
| CODE | PROPERTY |
|---|---|
| from module import function | from the module imported the function |
| import os | imort the directory |
| os.listdir() | show list of os directory |
| dir(os) | shows the directory of os |
| os.dir | shows the directory of files |
| help(glob2) | show the help of package |
| METHOD | METHOD'S FUNCTION | EXAMPLE |
|---|---|---|
| .lower() | Convert all string to lower | >>> First_name.lower() |
| .isalpha() | sure that it only contains letters | if len(original) > 0 and original.isalpha(): |
| break | used for break the loop |
>>> name="prime"
>>> print("Welcome ",name)
Welcome prime
>>>print(type(name)) #Give the class of type name
<class 'str'>
>>> f=float(input('Enter the float value:')) #Float input
>>>m=int(input('Enter the integer:')) # Integer Input
>>> msg=str(input("Enter the name")) #String input
>>> a="This is prime"
>>> a[0:6]
'This i'
>>> a[:5]
'This '
>>> a[5:]
'is prime'
First_name="Sunny"
Last_name="Prime"
print(First_name +" "+ Last_name)
'Sunny Prime'
>>> list=['Phy','Chem',1999,2000]
>>> list
['Phy', 'Chem', 1999, 2000]
>>> list[2]
1999
>>> list[2] = 2000 #Update list
>>> list
['Phy', 'Chem', 2000, 2000]
>>> del list[2] #delete list
>>> list
['Phy', 'Chem', 2000]
| Description | Method |
|---|---|
| Display | fruits[1] |
| Replace | fruits[0]="kiwi" |
| Append | fruits.append("Orang") |
| Selected Insert | fruits.insert(1, "lemon") |
| Remove | fruits.remove("banana") |
Tupple are immutable(Cannot be deleted or edited).But we can add two tupples.
>>> tup1=('phy','chem','bio',1997,2000)
>>> tup1
('phy', 'chem', 'bio', 1997, 2000)
>>> tup2=('Prime','India')
>>> tup2
('Prime', 'India')
>>> tup3=tup1+tup2
>>> tup3
('phy', 'chem', 'bio', 1997, 2000, 'Prime', 'India')
| Description | Method |
|---|---|
| selected item | fruit[0] |
| length of tuple | len(fruits) |
>>> dict={'Name':'Prime','Age':7,'Class':'First'}
>>> dict
{'Name': 'Prime', 'Age': 7, 'Class': 'First'}
>>> dict['Name']
'Prime'
>>> dict['Age']
7
| Description | Method |
|---|---|
| getting selected | car.get("model") |
| changing the value | car["year"] |
| Adding the value | car["color"] = "red" |
| Removing the value | car.pop("model") |
| clearing the entry | car.clear() |
In set Repation has been ignored.
>>> set={1,2,3,"Prime"}
>>> set
{1, 2, 3, 'Prime'}
>>> set={1,1,2,3,2,5,6,8,6,}
>>> set
{1, 2, 3, 5, 6, 8}
| Description | Method |
|---|---|
| if present in | if("apple" in "fruits"): |
| Adding | fruits.add("orange") |
| Update | fruits.update(more_fruits) |
| Remove | fruits.remove("banana") |
| discard | fruits.discard("banana") |
a = 200
b = 33
if b > a:
print("b is greater than a")
elif a == b:
print("a and b are equal")
else:
print("a is greater than b")
#######
a and b are equal
i = 0
while i < 6:
i += 1
if i == 3:
continue
print(i)
#####
1
2
4
5
6
for x in range(6):
print(x)
####
0
1
2
3
4
5
def my_function():
print("Hello from a function")
my_function()
#####
Hello from a function
x = lambda a: a + 10
print(x(5))
####
15
def fun_one(n):
return n * 5
def fun_two(m):
return fun_one(m) + 7
import datetime
x = datetime.datetime(2020, 5, 17)
print(x)