PYTHON

how to check if an element is in a list python

thelist = ["apple", "avocado", "banana"]

inpt = input("Check an item in the list: ")

if inpt in thelist:
  print(inpt, "is in the list!")

Check if element in list Python

listA = [item1, item2, item3]
if item4 in listA:
  print('yes, item4 is in the list')
else:
  print('no, item4 is not in the list')

python check if list contains value

if value in list:
  #do stuff

#Also to check if it doesn't contain
if value not in list:
  #do stuff

how to check if value is in list python

>>> letters = [a,b,c,d,e]
>>> 'a' in letters:
True

if string in list py

string = "hello"
list = ["bye", "kasd", "hello", "day", "hel"]

if string in list:
    print(f"Found '{string}' in '{list}'!")
else:
	print(f"Couldnt find '{string}' in '{list}'!")
    
>>> Found 'hello' in '["bye", "kasd", "hello", "day", "hel"]'!

check if value is in list python

l1 = [1]
l2 = [2,3,4]

if len(set(l1).intersection(set(l2)))==0:
    print('1 is not in the list (l2)')
else: # len()>0
    print('1 is in the list (l2)')

check if item exists in list python

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fruits = ["apple", "banana", "cherry","banana"]
item = "apple"
if item in fruits:
  print("Yes, '",item,"' is in the fruits list")

how to check if one value is in the list python

if ourlist.count('to') > 0:
   print('"to" exists in ourlist');

python check if included in list

#This is the list. You can place it in other file and import it.

"In the same file:"

MyList = ["something", "something2", "something3"]

IncredibleWord = "something"

if IncredibleWord in MyList:
  print("Yes, IncredibleWord is in your list")
  
else:
  print("No, IncredibleWord isn't in your list")
  
#------------------------------------------------------------------------------ 

"If your list is in an other file:"

#OtherFile
	MyList = ["something", "something2", "something3"]

#MyMainFile
	#Variables and lists for example
  from OtherFile import *
  
  IncredibleWord = "something"

if IncredibleWord in MyList:
  print("Yes, IncredibleWord is in your list")
  
else:
  print("No, IncredibleWord isn't in your list")

#-------------------------------------------------------------------------------
  	#Only a variable or a list for example
  from OtherFile import <List Name>
  
  IncredibleWord = "something"

if IncredibleWord in MyList:
  print("Yes, IncredibleWord is in your list")
  
else:
  print("No, IncredibleWord isn't in your list")
  
  

check if a number is in a list python

5 in [3, 4, 5, 6, 7]
# True

9 in [3, 4, 5, 6, 7]
# False

Check If Element Is In List

list = ["a", "a", "a", "b", "c", "d"]

if 'a' in list:
    print("a is in the list")

how to check if element is in list python

'''    
    check if element NOT exist in list using 'in'
'''
if 'time' not in listOfStrings :
    print("Yes, 'time' NOT found in List : " , listOfStrings)

python check if string is in a list

# Gives True/False if a string is in a list.
input = 'hello'
result = input in ['greetings', 'and', 'hello', 'sir']
print(result)

Python if in list

listttt = ["eee", "yee"]
if "yee" in listttt:
  print("yee")
else:
  print("no.")

python find if element in list

element_you_want_to_find in list_in_you_want_to_search
Note: Don't forget to substitute both of that variables with the variables you want

  Conclusion: Use the in operator