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What is the difference between Python's list methods append and extend?
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append: Appends object at the end.
x = [1, 2, 3]
x.append([4, 5])
print (x)
gives you: [1, 2, 3, [4, 5]]
extend: Extends list by appending elements from the iterable.
x = [1, 2, 3]
x.extend([4, 5])
print (x)
gives you: [1, 2, 3, 4, 5]
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CSS I want a div to be on top of everything
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In order for z-index to work, you'll need to give the element a position:absolute or a positio...
How is the default max Java heap size determined?
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Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
...邮件服务器，公司全部员工使用统一的域名，内网IP为：192.168.0.115
操作系统：RHEL5
所用软件列表：
mysql-5.5.20
postfix-2.9.1
courier-authlib-0.62.4.tar.bz2
extmail-1.2.tar.gz
extman-1.1.tar.gz
Unix-Syslog-1.1.tar.gz
perl-GD-2.35-1.el5.rf.i386....
Are +0 and -0 the same?
Reading through the ECMAScript 5.1 specification , +0 and -0 are distinguished.
9 Answers
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How to test multiple variables against a value?
...bout the same comparison for all names here. You are looking for:
if x == 1 or y == 1 or z == 1:
x and y are otherwise evaluated on their own (False if 0, True otherwise).
You can shorten that using a containment test against a tuple:
if 1 in (x, y, z):
or better still:
if 1 in {x, y, z}:
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Git Extensions: Win32 error 487: Couldn't reserve space for cygwin's heap, Win32 error 0
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Checking if sys.argv[x] is defined
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edited Nov 3 '17 at 13:12
answered Mar 24 '11 at 18:17
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How to get numbers after decimal point?
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An easy approach for you:
number_dec = str(number-int(number))[1:]
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pull out p-values and r-squared from a linear regression
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