From: Rahul Kumaresan Date: Mon, 18 May 2020 01:32:34 +0000 (+0530) Subject: bpo-39705 : sorted() tutorial example under looping techniques improved (GH-18999) X-Git-Tag: v3.9.0b1~28 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=eefd4e033334a2a1d3929d0f7978469e5b5c4e56;p=thirdparty%2FPython%2Fcpython.git bpo-39705 : sorted() tutorial example under looping techniques improved (GH-18999) --- diff --git a/Doc/tutorial/datastructures.rst b/Doc/tutorial/datastructures.rst index 0edb73ad7369..ff4c797f66cd 100644 --- a/Doc/tutorial/datastructures.rst +++ b/Doc/tutorial/datastructures.rst @@ -613,6 +613,21 @@ direction and then call the :func:`reversed` function. :: To loop over a sequence in sorted order, use the :func:`sorted` function which returns a new sorted list while leaving the source unaltered. :: + >>> basket = ['apple', 'orange', 'apple', 'pear', 'orange', 'banana'] + >>> for i in sorted(basket): + ... print(i) + ... + apple + apple + banana + orange + orange + pear + +Using :func:`set` on a sequence eliminates duplicate elements. The use of +:func:`sorted` in combination with :func:`set` over a sequence is an idiomatic +way to loop over unique elements of the sequence in sorted order. :: + >>> basket = ['apple', 'orange', 'apple', 'pear', 'orange', 'banana'] >>> for f in sorted(set(basket)): ... print(f) diff --git a/Misc/NEWS.d/next/Documentation/2020-03-14-18-37-06.bpo-39705.nQVqig.rst b/Misc/NEWS.d/next/Documentation/2020-03-14-18-37-06.bpo-39705.nQVqig.rst new file mode 100644 index 000000000000..3454b928e70b --- /dev/null +++ b/Misc/NEWS.d/next/Documentation/2020-03-14-18-37-06.bpo-39705.nQVqig.rst @@ -0,0 +1,2 @@ +Tutorial example for sorted() in the Loop Techniques section is given a better explanation. +Also a new example is included to explain sorted()'s basic behavior. \ No newline at end of file