blind typing

cmd command => (path) color , dir, cls, python -V, python --version, cd , exit ,code, mkdir (md) | rd | (rmdir /s (delete with subdirectory)),|rename file.pe file.py|ren (rename file ) type(reads the files), | type nul > index.html (creates file) | echo print(5*5) > demo.py (writes a code inside the file) del(delete files), date,| time => use only as a admin | shutdown /s => 1 min to shutdown (/r | /l ) | shutdown /a => to abort the shutting down how to run in terminal python file;> python file.py /help

short cuts;

%temp% / %appdata%

.formats;

errors❤; syntax error; name error; TypeError; IndentationError; ValueError; indexerror; AttributeError; Logic error;

comment;

""" multi line comment """

ctrl + alt + n = run

correct var names;

myvar = 1; my_var = 2 #snake_case; _my_var = 3; myVar = 4 # camelCase MYVAR = 5 myvar6 = 6

wrong var names

$ = 3; & = 4; 3 = 6; 2myvar = "John"; my var = "John"; my-var = "John" #kebab-case;

odam = 'Jasur '

markaz = 'best'

yosh = 25

print(f"{odam} {markaz}da o'qiydi yoshi {yosh}da.{odam} keyingi yil {yosh+1} ga kiradi")

a = "Hello" t = "python"; g = "juda"; b = "zo'r";

print(t +" " + g + " " + b);

+ Addition x + y

- Subtraction x - y

* Multiplication x * y

/ Division x / y

Modulus x % y

Exponentiation x y

// Floor division x // y

input(); name = input("name?"); print(name, type(name));

a = 18 print(a,type(a))

data = input() #default #hint

print(data,type(data))

ctrl + shift + p

num = int(input()) print(num, type(num))

a = "Hello, World!" print(len(a))

a = "Hello, World!" print(a[1])

b = "Hello, World!" print(b[2:5])

b = "Hello, World!" print(b[:5])

b = "Hello, World!" print(b[2:])

b = "Hello, World!" print(b[-5:-2])

a="string" print(a.index("r"))

soz = input("Enter a string: ")

index = int(input("Enter a number: "))

print(soz[index])

ctrl + / > comment

a = "Hello, World!" print(a.upper())

a = "Hello, World!" print(a.lower())

b = "hello, world!" print(b.title()) > H W

b = "hello, world!" print(b.capitalize())

word = "salom MENING ISMIM teamit" print(word.swapcase())

b = "HELLO, WORLD!" print(b.casefold()) => advanced version of lower

a = "Hello, World!" print(a.strip())

print(a.lstrip()) print(a.rstrip())

a = "Hello, World!" print(a.replace("H", "J"))

b = "HELLOH, WORLD!" print(b.count("O"))

a = "Hello, World!" print(a.split(" "))

% a = "Hello, World!" % l = list(a) % print(l)

mylist = ["apple", "banana", "cherry"]

a = ['boom','boom','boom','boom',] print(a) print(*a)

len() > Length > uzunlik

index

slicing > kesish

in > bool > ichida

txt = "The best things in life are free!"

print("free" in txt)

#mutable & immutable

thislist = ["apple", "banana", "cherry"]

thislist[0:2] = "blackcurrant"

print(thislist)

room[0:2] = ["mirror","chair"]

% list methods qop = ["apple", "banana", "cherry"]

qop.remove("olcha")

qop.pop()

qop.insert(0,"uzum")

qop.append("false")

quti.extend(qop)

del qop[0]

del qop

qop.clear()

qop.sort()

qop.reverse()

---- tuple----- -Tuble listni elementlarini o'zgarimas ko'rinishi sifatida qabul qilish mmkn.

tuple1 = (33,55,66) tuple1[0] = 88 => type error chunki tuple qismlarini o'zgartirib bo'lmaydi (as a str)

true

false

>

<

==

!=

<=

>=

a = 30

b = 171

nesting

if a == b: #true

print("a katta b dan")

else: #false

print("demak b katta yoki teng")

a = input("login...")

login = "maroof"

if a != login:

print("qayta urining")

else:

print("kiring")

⇓

if a == login

# print("kiring")

and & or

for

while

#break & continue

def func(a):

return a

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