>>> a = {1, 2, 3}
>>> b = {2, 3, 4}
>>> a & b
{2, 3}
On Wednesday, 26 January 2022 at 23:52:05 UTC+11 xaadx...@gmail.com wrote:> a = [1,2,3,4] > b = [3,4,5,6] > > Convert list a to set > a_set = set(a) > print(a_set.intersection(b)) > > On Wed, Jan 26, 2022, 5:47 PM Muhammad Shehzad <xaadx...@gmail.com> wrote: > >> Use intersection >> >> On Wed, Jan 26, 2022, 4:06 PM bnmng <benj...@bnmng.com> wrote: >> >>> Thank you. I think I'll go with sets as advised, although this method >>> also looks very neat: >>> intersection = [item for item in list1 if item in list2] found at >>> https://datagy.io/python-intersection-between-lists/ >>> >>> >>> >>> >>> On Tuesday, January 25, 2022 at 3:11:10 PM UTC-5 joezep...@gmail.com >>> wrote: >>> >>>> >>>> >>>> On Tue, Jan 25, 2022 at 3:07 PM bnmng <benj...@bnmng.com> wrote: >>>> >>>>> Thank you. That set.intersection with list conversion seems like the >>>>> way to go. On your second point, well taken. I'll keep that in mind for >>>>> future Python questions >>>>> >>>>> On Tuesday, January 25, 2022 at 7:46:58 AM UTC-5 bnmng wrote: >>>>> >>>>>> Hello, >>>>>> >>>>>> Is there a built in function that compares two or more lists and >>>>>> returns elements common to all? >>>>>> >>>>>> like this: >>>>>> >>>>>> def in_both( list_a, list_b ): >>>>>> list_c=[] >>>>>> for value in list_a: >>>>>> if value in list_b: >>>>>> list_c.append(value) >>>>>> return list_c >>>>>> >>>>>> Or this: >>>>>> def in_all(list_of_lists): >>>>>> list_a = list_of_lists.pop(0) >>>>>> list_b = [] >>>>>> for value in list_a: >>>>>> in_all_lists = True >>>>>> for each_list in list_of_lists: >>>>>> if not value in each_list: >>>>>> in_all_lists = False >>>>>> if in_all_lists: >>>>>> list_b.append(value) >>>>>> return list_b >>>>>> >>>>>> Thank you >>>>>> >>>>> -- >>>>> >>>> You received this message because you are subscribed to the Google >>>>> Groups "Django users" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to django-users...@googlegroups.com. >>>>> >>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/django-users/4465553d-8aa1-4ab2-9e9c-19c4117d623fn%40googlegroups.com >>>>> >>>>> <https://groups.google.com/d/msgid/django-users/4465553d-8aa1-4ab2-9e9c-19c4117d623fn%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>> -- >>>> Oussama Chafiqui >>>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Django users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to django-users...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/django-users/fc7b49a3-2ca2-48e1-8556-f742e16fa4c9n%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/django-users/fc7b49a3-2ca2-48e1-8556-f742e16fa4c9n%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/58190fe5-8839-4698-8db2-a20c0a928ab3n%40googlegroups.com.
