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How does collections.defaultdict work?
... understand why.
– Sven Marnach
May 2 '19 at 19:10
How do we know what is the default value for each type? 0 for int()...
Check whether variable is number or string in JavaScript
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How to check version of python modules?
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How do I use Nant/Ant naming patterns?
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The rules are:
a single star (*) matches zero or more characters within a path name
a double...
How to check Django version
...ython and Django for our application. So I have two versions of Python, 2.6 and 2.7. Now I have installed Django. I could run the sample application for testing Django succesfuly. But how do I make sure whether Django uses the 2.6 or 2.7 version and what version of modules Django uses?
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Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
...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.rpm...
Batch files - number of command line arguments
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nimrodmnimrodm
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Is there a simple way to delete a list element by value?
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21 Answers
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Formatting Decimal places in R
I have a number, for example 1.128347132904321674821 that I would like to show as only two decimal places when output to screen (or written to a file). How does one do that?
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How can I create a Set of Sets in Python?
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Python's complaining because the inner set objects are mutable and thus not hashable. The solut...