python find item in list return index
Use l.index(n) to find index of n in list l . >>> x = [1,3,7] ... You can use Index function which is get the element and return the index of it in the list:,Your idea to use enumerate() was correct. indices = [] for i, elem in enumerate(mylist): if 'aa' in elem: indices.append(i). Alternatively, as a list comprehension:
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 python find item in list return index 相關參考資料
Finding the index of an item given a list containing it in Python ...
An index call checks every element of the list in order, until it finds a match. .... index, but their methods do not return multiple indexes if the item is in the list ... https://stackoverflow.com How to find the position of an item of a list in python? - Stack ...
Use l.index(n) to find index of n in list l . >>> x = [1,3,7] ... You can use Index function which is get the element and return the index of it in the list: https://stackoverflow.com python - find index position in list based of partial string ...
Your idea to use enumerate() was correct. indices = [] for i, elem in enumerate(mylist): if 'aa' in elem: indices.append(i). Alternatively, as a list comprehension: https://stackoverflow.com python - How to get item's position in a list? - Stack Overflow
print(testlist.index(element) if element in testlist else None) .... expect to find the value a lot you should probably just append "index" to a list and ... https://stackoverflow.com Python Fastest way to find Indexes of item in list - Stack Overflow
To get the index of the item, you can use the dictionary. aList = [123, 'xyz', 'zara','xyz', 'abc']; #The following apporach works only on lists with unique values aLis... https://stackoverflow.com Python List index() - Python Standard Library - Programiz
Python List index() The index() method searches an element in the list and returns its index. In simple terms, index() method finds the given element in a list and returns its position. However, if th... https://www.programiz.com Python List index() Method - Tutorialspoint
Python List index() Method - Learn Python in simple and easy steps starting from basic ... The method index() returns the lowest index in list that obj appears. ... of the found object otherwise raise... https://www.tutorialspoint.com Python: Find in list - Stack Overflow
In Python 3, filter doesn't return a list, but a generator-like object. .... comprehensive, when we want to find an item in a list it is sometimes useful to get its index: https://stackoverflow.com Python: find position of element in array - Stack Overflow
Have you thought about using Python list's .index(value) method? It return the index in the list of where the first instance of the value passed in is found. https://stackoverflow.com Python: finding an element in a list - Stack Overflow
The best way is probably to use the list method .index. For the objects in the list, you can do something like: def __eq__(self, other): return self.Value == other. https://stackoverflow.com |