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Doc: Do not suggest `s[::-1]` for reversed order (GH-22457) 

(cherry picked from commit fb2e94692e)

Co-authored-by: Andre Delfino <adelfino@gmail.com>
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Miss Skeleton (bot) 2020-10-21 01:34:36 -07:00 committed by GitHub
parent 490f30dacd
commit 62eb403ad5
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2 changed files with 1 additions and 7 deletions
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7
Doc/faq/programming.rst
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@ -1121,7 +1121,7 @@ trailing newline from a string.
How do I iterate over a sequence in reverse order?
--------------------------------------------------
Use the :func:`reversed` built-in function, which is new in Python 2.4::
Use the :func:`reversed` built-in function::
for x in reversed(sequence):
... # do something with x ...
@ -1129,11 +1129,6 @@ Use the :func:`reversed` built-in function, which is new in Python 2.4::
This won't touch your original sequence, but build a new copy with reversed
order to iterate over.
With Python 2.3, you can use an extended slice syntax::
for x in sequence[::-1]:
... # do something with x ...
How do you remove duplicates from a list?
-----------------------------------------

1
Doc/tools/susp-ignored.csv
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@ -12,7 +12,6 @@ extending/extending,,:myfunction,"PyArg_ParseTuple(args, ""D:myfunction"", &c);"
extending/extending,,:set,"if (PyArg_ParseTuple(args, ""O:set_callback"", &temp)) {"
extending/newtypes,,:call,"if (!PyArg_ParseTuple(args, ""sss:call"", &arg1, &arg2, &arg3)) {"
faq/programming,,:chr,">=4.0) or 1+f(xc,yc,x*x-y*y+xc,2.0*x*y+yc,k-1,f):f(xc,yc,x,y,k,f):chr("
faq/programming,,::,for x in sequence[::-1]:
faq/programming,,:reduce,"print((lambda Ru,Ro,Iu,Io,IM,Sx,Sy:reduce(lambda x,y:x+y,map(lambda y,"
faq/programming,,:reduce,"Sx=Sx,Sy=Sy:reduce(lambda x,y:x+y,map(lambda x,xc=Ru,yc=yc,Ru=Ru,Ro=Ro,"
faq/windows,,:d48eceb,"Python 3.6.4 (v3.6.4:d48eceb, Dec 19 2017, 06:04:45) [MSC v.1900 32 bit (Intel)] on win32"

1 c-api/arg :ref PyArg_ParseTuple(args, "O|O:ref", &object, &callback)
12 extending/extending :set if (PyArg_ParseTuple(args, "O:set_callback", &temp)) {
13 extending/newtypes :call if (!PyArg_ParseTuple(args, "sss:call", &arg1, &arg2, &arg3)) {
14 faq/programming :chr >=4.0) or 1+f(xc,yc,x*x-y*y+xc,2.0*x*y+yc,k-1,f):f(xc,yc,x,y,k,f):chr(
faq/programming :: for x in sequence[::-1]:
15 faq/programming :reduce print((lambda Ru,Ro,Iu,Io,IM,Sx,Sy:reduce(lambda x,y:x+y,map(lambda y,
16 faq/programming :reduce Sx=Sx,Sy=Sy:reduce(lambda x,y:x+y,map(lambda x,xc=Ru,yc=yc,Ru=Ru,Ro=Ro,
17 faq/windows :d48eceb Python 3.6.4 (v3.6.4:d48eceb, Dec 19 2017, 06:04:45) [MSC v.1900 32 bit (Intel)] on win32