backup Github Repo of 100 episodes
Go to your project folder using Finer -> Right Click -> New Terminal at folder
source venv/bin/activate
uvicorn main:app --reload
pip install -r requirements.txt
# https://peps.python.org/pep-0008/
def my_function_name(items: str): #don't need return type
for i in items:
if i!='a': #if(i!='n'): wrong syntax
print(i)
return 5
items = "Shayan"
x = my_function_name(items) #define function before calling it
print("hello world")
print(value := 10) #walrus operator
# pep3 install pandas #pip3 for mac termincal```
# import pandas
println(17*13)
# This is a comment
# for multi line comment use triple ''' or """
# Alt + ↓ #to move line
# Escape Sequence Characters \n \"
print("I am a good \"boy\" and\nthis is new line")
print("Hey", 6, 7, sep="~", end="009\n")
a=1
b=True
c="Harry"
d=None
print("the type of a is:", type(a))
print("the type of a is:", type(b))
# Sequenced Data: list, tuple
list1 = [8, 2.3, [-4,5], ["apple","banana"]] #changeable
print(list1)
tuple1 = (("parrot","sparrow"), ("lion, tiger")) #unchangeable
print(tuple1)
# Mapped Data: dict
dict1 = {"name":"Shayan", "age":20, "is_engineer":True} #key-value pairs
print(dict1)
# everything in python is object
print(5+2) #7
print(5-2) #3
print(5*3) #15
print(2**4) #2^4=16
print(5/2) #2.5
print(5//2) #2
# Alt + Shift + ↓ #copy line
# Alt + Click #multiple cursors
#explicit type conversion
a = "1"
b = "2"
print(int(a) + int(b))
#implicit type conversion
c = 1 # int will be converted into float 1.0
# python convert lower data type to higher data type to prevent data loss
d = 2.1
e = c + d
print(e)
print(type(e)) #<class 'float'>
a = input("Enter first number:")
b = input("Enter second number:")
print("The sum of two numbers is:", int(a) + int(b))
name = "Shan"
print(name[0] + "= index:" + str(name.index('S'))) #S at index: 0
items = "Mango"
for i in items:
print(i)
fruit = "Mango"
print(len(fruit)) #5
print(fruit[0:4]) #Mang
print(fruit[:4]) #Mang
print(fruit[1:]) #ango
print(fruit[:]) #Mango
print(fruit[-1]) #same as fruit[4] #o => len(fruit)-1: 5-1=4
print(fruit[-4:-2]) #fruit[1:3] #an
a = '!Harrry!!!' #string are immutable
print(a.upper()) #HARRY!!!
print(a) #!Harrry!!!
print(a.rstrip('!')) #!Harrry
b = 'a b c'
print(b.split( )) #['a', 'b', 'c']
📷 19:58 record with OBS + continuity camera
age = int(input('Enter your age: '))
if age>18: #if(age>18): wrong syntax
print("You can drive")
else:
print("You can't drive")
import time
from time import gmtime, strftime
current_time = time.time()
print(strftime("%a, %d %b %Y %H:%M:%S", gmtime(current_time)))
if int(time.strftime("%H"))>12:
print("Good Afternoon")
# there is no break statement in case block like C, C++, Java
x = 52
match x:
case 0:
print("x1 is 0")
case 100:
print("x2 is 100")
case _ if x<50: #you can add if in default case
print("x3 is less than 50")
case _ if x>50:
print("x4 is greater than 50")
case _:
print("x5 is 50")
name = "Abc"
for i in name:
print(i)
for i in range(3):
print('.',i)
n = 0
while n < 3:
print('..',n)
n += 1
else:
print('else block')
for i in range(10):
if i==2:
continue
elif i==5:
break
else:
print(i)
def my_function_name(items: str):
pass
def sum(a,b): #positional argument
return a+b
print(sum(1,5)) #6
def sum(a=2,b=5): #default argument
return a+b
print(sum()) #7
def sum(a,b): #keyword argument
return a+b
print(sum(b=5,a=3)) #6
def sum(*numbers): #arbitrary argument
print(type(numbers))#<class 'tuple'>
result = 0
for i in numbers:
result=result+i
return result
print("sum is:",sum(4,5)) #sum is: 9
def name(**names): #keyword arbitrary argument
print(type(names))#<class 'dict'>
for key, value in names.items():
print(key, value)
print(name(first='Shayan', last='Rais'))
list = [1, "two", True]
print(list) #[1, 'two', True]
if 1 in list:
print("Yes, 1 is in list") #Yes, 1 is in list
lst = [i for i in range(5) if i>2]
print(lst) #[3, 4]
one = [4, 3, 2, 1]
two = one
two[0] = 5
print(one) #[5, 3, 2, 1] org one list changed
one.insert(0, 100)
print(one) #[100, 5, 3, 2, 1]
tup = (1, 2, 2, "ABC")
# tup[2] = 100 #TypeError: 'tuple' object does not support item assignment
print(tup[3]) #ABC
tup.index(2) #1
exercise
kbc program
name = "Shayan"
print(f"my name is {name}") #my name is Shayan
def square(x):
'''this is docstring'''
return x * x
print(square.__doc__) #this is docstring
#Python Enhancement Proposal (PEP8)
import this
The Zen of Python, by Tim Peters (poem)
def factorial(n):
if n == 0:
return 1
return n * factorial(n-1)
print(factorial(5)) #120