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ipython reads wrong python version
...on
# -*- coding: utf-8 -*-
import re
import sys
from IPython import start_ipython
if __name__ == '__main__':
sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
sys.exit(start_ipython())
And mine works properly like this, but my situation isn't exactly like the OP's.
Ori...
Why prefer two's complement over sign-and-magnitude for signed numbers?
...icle on two's complement for the full answer: en.wikipedia.org/wiki/Two%27s_complement. The short answer is the MSB 1 indicates -8, and the remaining three 1s indicate 4, 2, and 1, respectively, so -8+4+2+1 = -1.
– Welbog
Aug 23 '16 at 13:33
...
Select between two dates with Django
...
Use the __range operator:
...filter(current_issue__isnull=True, created_at__range=(start_date, end_date))
share
|
improve this an...
What is the preferred/idiomatic way to insert into a map?
... which you assign a value. Obviously, this can be inefficient if the mapped_type can benefit from being directly initialized instead of default constructed and assigned. This method also makes it impossible to determine if an insertion has indeed taken place or if you have only overwritten the value...
Can scrapy be used to scrape dynamic content from websites that are using AJAX?
...t to you, but it's not the case here @Toolkit
– Arion_Miles
Oct 21 '18 at 6:29
1
This is not real...
How do I mock an open used in a with statement (using the Mock framework in Python)?
...ager (from the examples page in the mock documentation):
>>> open_name = '%s.open' % __name__
>>> with patch(open_name, create=True) as mock_open:
... mock_open.return_value = MagicMock(spec=file)
...
... with open('/some/path', 'w') as f:
... f.write('something')
...
Oracle 11.2.0.4 RAC FOR redhat 6.4 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...nt/iso/
mkdir -p /mnt/iso/oracle
使用SCP 工具 把 rhel-server-6.4-x86_64-dvd.iso 安装镜像上传到 服务器的 /mnt/iso/目录上传到 服务器的 /mnt/iso/目录
p13390677_112040_Linux-x86-64_1of7.zip
p13390677_112040_Linux-x86-64_2of7.zip
p13390677_112040_Linux-x86-64_3of7.zip
...
Traverse a list in reverse order in Python
...
You can do:
for item in my_list[::-1]:
print item
(Or whatever you want to do in the for loop.)
The [::-1] slice reverses the list in the for loop (but won't actually modify your list "permanently").
...
How to change the CHARACTER SET (and COLLATION) throughout a database?
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change database collation:
ALTER DATABASE <database_name> CHARACTER SET utf8 COLLATE utf8mb4_0900_ai_ci;
change table collation:
ALTER TABLE <table_name> CONVERT TO CHARACTER SET utf8 COLLATE utf8mb4_0900_ai_ci;
change column collation:
ALTER TABLE <table_name&g...
Windows下如何判断Win32 or x64？ - C/C++ - 清泛网 - 专注C/C++及内核技术
...判断Win32 or x64？MSDN 里说，VC 有 3 个预处理常量，分别是 _WIN32，_WIN64，WIN32。这三个常量如何使用呢？看起来简单，其实是很困惑的。 在 Win3...MSDN 里说，VC 有 3 个预处理常量，分别是 _WIN32，_WIN64，WIN32。这三个常量如何使用...