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https://stackoverflow.com/questions/12934190/is-there-a-short-con...

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python - Is there a short contains function for lists ... - Stack Overflow

The list method index will return -1 if the item is not present, and will return the index of the item in the list if it is present. Alternatively in an if statement you can do the following: if myItem in list: #do things You can also check if an element is not in a list with the following if statement: if myItem not in list: #do things

https://www.geeksforgeeks.org/check-if-element-exists-in-list-in-...

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Check if element exists in list in Python - GeeksforGeeks

Which Method to Choose. in Statement: The simplest and most efficient method for checking if an element exists in a list. Ideal for most cases. for Loop: Allows manual iteration and checking and provides more control but is less efficient than using ' in'. any(): A concise option that works well when checking multiple conditions or performing comparisons directly on list.

https://datagy.io/python-list-contains-item/

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Python: Check if List Contains an Item - datagy

Check if a Python List Contains an Item Using any. The Python any function scans an iterable and returns True if any of the items in the iterable are True. So, how can we use the any function to check for membership in a Python list? We can place a comprehension inside the any function to check for membership.

https://www.slingacademy.com/article/python-checking-if-a-list-co...

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Python: Checking If a List Contains an Element (3 Approaches)

This approach requires handling a potential exception, but it provides information about the index of the element in the list (if found). Using the list.count() method. Another working solution is to use the list.count() method to count the occurrences of an element in a list and check if it’s greater than zero. Example:

https://stackabuse.com/python-check-if-array-or-list-contains-ele...

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Python: Check if Array/List Contains Element/Value - Stack Abuse

In this tutorial, we'll take a look at how to check if a list contains an element or value in Python. We'll use a list of strings, containing a few animals: animals = ['Dog', 'Cat', 'Bird', 'Fish'] Check if List Contains Element With for Loop. A simple and rudimentary method to check if a list contains an element is looping through it, and ...

https://pythonguides.com/check-if-an-array-contains-a-value-in-py...

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How to Check if an Array Contains a Value in Python? - Python Guides

Read Python repeat array n times. 5. Use the set() Function. If you have a large list and need to perform multiple checks, converting the list to a set by using set() can improve performance. The set in Python provides fast testing using hash tables.

https://www.w3schools.com/python/gloss_python_check_if_list_item_...

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Python Check If List Item Exists - W3Schools

W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more.

https://stackoverflow.com/questions/7571635/fastest-way-to-check-...

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python - Fastest way to check if a value exists in a list - Stack Overflow

Get their indices if values exist in a list. On the other hand, if you want to check if values exist in a list and return the indices of the values that do, then regardless of the length of the list, for small number of values, directly searching for it using list.index() in a try-except block is the fastest way to do it. In particular, if you ...

https://appdividend.com/python-list-contains/

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Python List Contains: Checking If an Item Exists in List - AppDividend

Here are five ways to check if a list contains an element in Python: Using in operator; Using list comprehension; Using list.count() Using any() ... This function can be effectively combined with list comprehension and the “in” operator to check if a list contains all specified elements.

https://codedamn.com/news/python/how-to-check-for-specific-elemen...

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Python List Contains: How to Check for Specific Elements - codedamn

The simplest way to check if a Python list contains an element is by using the 'in' keyword. This is a built-in Python operator that checks if a list (or any iterable) contains a specific element. If the element is present, it returns True; otherwise, it returns False. Here's how you can use it:

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