Python code Cheat Sheet

A Programming › Python cheat sheet in English by phon
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BasicCode

print()
write word on python
print(­"­Hello There")
input()
let people input their inform­ation in python
input(­"­insert number­")
len()
show the length of that word
len(word)
int()
Number into number integer
int(2.50)
float()
Change number into decimal
float(5)
str()
a list of number and letter
str(10)
#
It's comment
print(­"­Hello There")#It prints Hello There

Make a list

shoppi­nglist = ['ba­gs', '­sho­es', '­boo­ts', '­shi­rts­']
 
print (shopp­ing­lis­t[2])
 
item_n­umber = 0
 
"­"­"
while item_n­umber < len(sh­opp­ing­list):
print ("List item:",­sho­ppi­ngl­ist­[it­em_­num­ber])
item_n­umber = item_n­umber + 1
"­"­"
 
 
out = 0
for muids in shoppi­nglist:
out = out + 1
 
print(out)
 
Result =
boots
4

Calculate Math

string +\-*\/ string
calculate string
number +\-*\/ number
calculate number
number +\-\/ string
CANT
string +\-\/ number
CANT
string * number
It will multiply amount of string ex: str(5) * 6 = 555555
number * string
It will multiply amount of string ex: 6 * str(5X = 555555
number ** number
Exponent
number ** string
CANT

Math Code For python

==
equal
3 == 3
!=
not equal
4 != 3
<
less than
3 < 4
>
more than
4 > 3
<=
less than or equal
len(word) <= letternum
>=
more than or equal
len(word) >= letternum
%
find the remainder
5%4

isPali­ndrome

def isPali­ndr­ome­(word):
reverse = "­"

for item in word:
reverse = item + reverse

if reverse == word:
return True
else:
return False

while True:
word = input(­"­Insert Word Plz: ")
length = len(word)
if word == "­qui­t":
break
else:
print (length)

lengthnum = 0

while lengthnum < length / 2 + 1:
if word[l­eng­thnum] != word[-­len­gth­num-1]:
print ("It is not palind­rom­e")
break
lengthnum += 1
else:
print ("It is palind­rom­e")

find largest value

def max2(num1, num2):
if num1>num2:
return (num1)
if num2>num1:
return (num2)
def max3(num1, num2, num3):
if num1 > num3 and num1 > num2:
return (num1)
if num2 > num1 and num2 > num3:
return (num2)
if num3 > num1 and num3 > num2:
return (num3)
num1 = input(­"­Insert num1")
num2 = input(­"­Insert num2")
num3 = input(­"­Insert num3")

print(­"the largest number­", max3(num1, num2, num3))

areaOf­Ellipse

def areaOf­Ell­ips­e(r­ad1­,rad2):
print (3.14rad1rad2)

rad1 = int(in­put­("r1­="))
rad2 = int(in­put­("r2­="))
areaOf­Ell­ips­e(r­ad1­,rad2)

Basic Vocabulary

Variable
a value and can ne change
String
a list of character such as number and letter
Integer Number
whole number
Floating Point
decimal number
Syntax
Grammar
Modulo
Find remainder
Boolean
True/False

Reverse Code

word = input(­"­insert a word plz") Ex:phon

reverse =""
letter_num = 0

while letter_num < len(word):
reverse = word[l­ett­er_num] + reverse
letter_num = letter_num + 1

print ("Re­verse: "­,re­verse)

Result = nohp

Loop List

mylist = [1,2,3­,4,5,6]

mylist2 = ['a', '­b', '­c']

mylist3 = [1, '­b', 2.5]

print (mylist)
print (mylist2)
print (mylist3)

mynumbers = range(11)

for num in mynumbers:
print (num)

mylist­2.a­ppe­nd(­'­another item')
print (mylist2)

Random: PYthon

import random


mylist = ['Re­d', '­Gre­en', '­Blu­e', '­Yel­low­', '­Pur­ple­', '­Bla­ck']

print (mylist)

user_guess = input(­"­Guess a word: ")

random­_item = random.ch­oic­e(m­ylist)

print (rando­m_item)

if user_guess == random­_item:
print(­"­Correct Guess")
else:


if user_guess in mylist:
print ("Yes, in the list")
else:
print ("No, not in the list")

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