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argparse: identify which subparser was used [duplicate]
...import argparse
parser = argparse.ArgumentParser( version='pyargparsetest 1.0' )
subparsers = parser.add_subparsers(help='commands')
# all
all_parser = subparsers.add_parser('all', help='process all apps')
all_parser.set_defaults(which='all')
# app
app_parser = subparsers.add_parser('app', help='...
Complex numbers usage in python [closed]
...conjugate()
(1-2j)
>>> print x.imag
2.0
>>> print x.real
1.0
>>> print x>y
Traceback (most recent call last):
File "<pyshell#149>", line 1, in <module>
print x>y
TypeError: no ordering relation is defined for complex numbers
>>> print x==y...
How to set .net Framework 4.5 version in IIS 7 application pool
... in IIS - Application pools screen, it will be 4.0. (There are 3 base CLR: 1.0, 2.0, 4.0.)
– Peter Kiss
Jan 22 '13 at 11:32
...
How to download Xcode DMG or XIP file?
....3
4.5.2
4.4.1
4.3.2
4.2
4.1
4.0.2
3.2.6
3.1.4
3.0
2.5
2.4.1
2.3
2.2.1
1.5
1.0
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Using copy-of with document() to add SVGs to XHTML output
...answer you're looking for? Browse other questions tagged html xml svg xslt-1.0 xslt-2.0 or ask your own question.
Python3 integer division [duplicate]
...
Note that 1.0 // 2 and 1 // 2.0 maybe surprisingly return a float with value 0.0.
– asmaier
Sep 12 '17 at 9:09
18
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10 条真心有趣的 Linux 命令 - 创意 - 清泛网 - 专注C/C++及内核技术
...m/asciiquarium.tar.gz
# tar -zxvf asciiquarium.tar.gz
# cd asciiquarium_1.0/
# cp asciiquarium /usr/local/bin/
执行如下命令：
# /usr/local/bin/asciiquarium
6.bb
# apt-get install bb
# bb
看看会输出什么？
7.sl
有的时候你可能把 ls 误打成了 sl，其实 sl ...
xpath路径表达式笔记 - C/C++ - 清泛网 - 专注C/C++及内核技术
...择节点的实例
先看一个XML实例文档。
<?xml version="1.0" encoding="ISO-8859-1"?>
<bookstore>
<book>
<title lang="eng">Harry Potter</title>
<price>29.99</price>
</book>
<book>
<title lang="eng">Learning XML</title>
<price>39.95</price>
</...
还记得亚马逊的一键买手纸吗 现在京东也有了 - 资讯 - 清泛网 - 专注C/C++...
...责人李俊周，说明了人们购物体验的3阶段：
传统购物 1.0:每天回到超市和厂商和连锁店，购买各种各样的商品，进行面对面的购物交易。
今天购物 2.0:通过电脑来访问电子商务的网站，去挑选更加丰富的商品，甚至很方便的打...
PHP屏蔽警告错误，PHP不输出警告错误 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...at /usr/local/tads/htdocs/XXXXXX/src/config/env.php:5) in/usr/local/taesdk/1.0/phplib3/src/base/core/TMWebResponse.class.php on line 332
有的时候代码的警告会导致整个项目无法运行，比如某个变量无对象的情况，若无影响，这时如果屏蔽警告，就可以使整...